Archive for category Research

a virtual network inside your machine

Did you ever start a horde of virtual machines and a complicated vm-only network set-up just to simulate a medium complex network and the interaction of nodes in that network? Well that’s a tiresome, error-prone and labour intensive process. Fear no more, there’s a tool to the rescue.

“Mininet creates a realistic virtual network, running real kernel, switch and application code, on a single machine (VM, cloud or native), in seconds, with a single command:”

frontpage_diagram

“Because you can easily interact with your network using the Mininet CLI (and API), customize it, share it with others, or deploy it on real hardware, Mininet is useful for development, teaching, and research. Mininet is also a great way to develop, share, and experiment with OpenFlow and Software-Defined Networking systems.

Mininet is actively developed and supported, and is released under a permissive BSD Open Source license. We encourage contribution of code, bug reports/fixes, documentation, and anything else that can improve the system!”

Source: http://mininet.github.com/

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Security Engineering — The Book

The second edition of the book “Security Engineering” by Ross Anderson is available as a full download. It’s quite a reference and a must-read for anybody with an interest in security (which for example all developers should have).

“When I wrote the first edition, we put the chapters online free after four years and found that this boosted sales of the paper edition. People would find a useful chapter online and then buy the book to have it as a reference. Wiley and I agreed to do the same with the second edition, and now, four years after publication, I am putting all the chapters online for free. Enjoy them – and I hope you’ll buy the paper version to have as a conveient shelf reference.”
book2coversmall

Source 1: http://www.cl.cam.ac.uk/~rja14/book.html

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know your numbers!

Wikipedia describes latency this way:

“Latency is a measure of time delay experienced in a system, the precise definition of which depends on the system and the time being measured. In communications, the lower limit of latency is determined by the medium being used for communications. In reliable two-way communication systems, latency limits the maximum rate that information can be transmitted, as there is often a limit on the amount of information that is “in-flight” at any one moment. In the field of human-machine interaction, perceptible latency has a strong effect on user satisfaction and usability.” (Wikipedia)

Given that it’s quite important for any developer to know his numbers. Since latency has a huge impact on how software should be architected it’s important to keep that in mind:

 

Bildschirmfoto 2012-12-25 um 21.28.20

 

Source: http://www.eecs.berkeley.edu/~rcs/research/interactive_latency.html

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Build a Brain – SPAUN

SPAUN or Semantic Pointer Architecture Unified Network is a promising next step in the pursuit to simulate a human brain. Built upon the Nengo Neural Simulator scientists at the University in Waterloo/Ontario were able to report on their first break-through results.

In 2013 there will be a book from Oxford University press called ‘How to build a brain’ which will describe in depth what made the astonishing results possible.

But what are the results?

Well that looks like number recognition. In fact that’s what it is. SPAUN – that’s how the scientists refer to their frankenstein-brain – is capable of solving 8 different tasks now. One of them is number recognition. There are videos of all 8 tasks being performed.

The Semantic Pointers are named after the pointers usually common in computer science:

“Higher-level cognitive functions in biological systems are made possible by semantic pointers. Semantic pointers are neural representations that carry partial semantic content and are composable into the representational structures necessary to support complex cognition.

The term ‘semantic pointer’ was chosen because the representations in the architecture are like ‘pointers’ in computer science (insofar as they can be ‘dereferenced’ to access large amounts of information which they do not directly carry). However, they are ‘semantic’ (unlike pointers in computer science) because these representations capture relations in a semantic vector space in virtue of their distances to one another, as typically envisaged by connectionists. “

Source 1: http://nengo.ca/build-a-brain
Source 2: http://nengo.ca/build-a-brain/spaunvideos/

 

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practical filesystem design

In November 1998 there was a book released about file system design taking the Be File System as the central example.

“This is the new guide to the design and implementation of file systems in general, and the Be File System (BFS) in particular. This book covers all topics related to file systems, going into considerable depth where traditional operating systems books often stop. Advanced topics are covered in detail such as journaling, attributes, indexing and query processing. Built from scratch as a modern 64 bit, journaled file system, BFS is the primary file system for the Be Operating System (BeOS), which was designed for high performance multimedia applications.

You do not have to be a kernel architect or file system engineer to use Practical File System Design. Neither do you have to be a BeOS developer or user. Only basic knowledge of C is required. If you have ever wondered about how file systems work, how to implement one, or want to learn more about the Be File System, this book is all you will need.”

If you’re interested in the matter I definitely recommend reading it – it’s available for free in PDF format and will help to understand what those file system patterns are all about – even in terms of things we still haven’t gotten from our ‘modern filesystems’ today.

Source 1: http://www.nobius.org/~dbg/

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second Tokyo Trip 2012 – Rakuten Technology Conference 2012

This October I had the pleasure to fly to Tokyo for the second time in 2012.

The development unit of Rakuten Japan was hosting the 7th Rakuten Technology Conference in Rakuten Tower 1 in Tokyo.

The schedule was packed with up to 6 tracks in parallel. From research to grass-roots-development a lot of interesting topics.

Source 1: http://tech.rakuten.co.jp/rtc2012/
Source 2: Recorded Lectures

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open source audio codecs getting better

Some weeks ago I heard about a new audio codec which is being developed as open source – very similar to vorbis – the previous open source approach to audio codecs.

This time it seems that they’ve got some standardization into the play so it might be more successful than vorbis was.

“Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but also intended for storage and streaming applications. It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which incorporated technology from Skype’s SILK codec and Xiph.Org’s CELT codec.”

Source 1: http://www.opus-codec.org/
Source 2: http://auphonic.com/blog/2012/09/26/opus-revolutionary-open-audio-codec-podcasts-and-internet-audio/
Source 3: http://tools.ietf.org/html/rfc6716

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Photosynth now mobile…

It’s been some months years since the once Microsoft Research Project got public and Microsoft started offering it’s great Photosynth service to the public.

I’ve been using the Microsoft panoramic and Photosynth tools for years now and I tend to say that they are the best tools one can get to create fast, easy and high-quality panoramic images.

There is photosynth.net to store all those panoramic pictures like this one from 2008:

The photosynth technology itself contains several other interesting technologies like SeaDragon which allows high quality image zooming on current internet connection speeds.

This awesome technology is as of now available on the iPhone (3GS and upwards) and it’s better than all the other panoramic tools I’ve used on a phone.

the process of taking the images

after the pictures are taken additional stitching is needed

after the stitching completed a fairly impressive panoramic images is the result

Source 1: Photosynth articles from the past
Source 2: Photosynth in Wikipedia
Source 3: Photosynth on iPhone App Store

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benchmarking the sones GraphDB (on Mono (sgen) and .NET)

Since we’re at it – we not only took the new Mono garbage collector through it’s paces regarding linear scaling but we also made some interesting measurements when it comes to query performance on the two .NET platform alternatives.

The same data was used as in the last article about the Mono GC. It’s basically a set of 200.000 nodes which hold between 15 to 25 edges to instances of another type of nodes. One INSERT operation means that the starting node and all edges + connected nodes are inserted at once.

We did not use any bulk loading optimizations – we just fed the sones GraphDB with the INSERT queries. We tested on two platforms – on Windows x64 we used the Microsoft .NET Framework and on Linux x64 we used a current Mono 2.7 build which soon will be replaced by the 2.8 release.

After the import was done we started the benchmarking runs. Every run was given a specified time to complete it’s job. The number of queries that were executed within this time window was logged. Each run utilized 10 simultaneously querying clients. Each client executed randomly generated queries with pre-specified complexity.

The Import

Not surprisingly both platforms are almost head-to-head in average import times. While Mono starts way faster than .NET the .NET platform is faster at the end with a larger dataset. We also measured the ram consumption on each platform and it turns out that while Mono takes 17 kbyte per complex insert operation on average the Microsoft .NET Framework only seems to take 11 kbyte per complex insert operation.

The Benchmark

Let the charts speak for themselves first:

mononet

click to enlarge

benchmark-mono-sgen
click on the picture to enlarge

benchmark-dotnet
click on the picture to enlarge

As you can see on both platforms the sones GraphDB is able to work through more than 2.000 queries per second on average. For the longest running benchmark (1800 seconds) with all the data imported .NET allows us to answer 2.339 queries per second while Mono allows us to answer 1.980 queries per second.

The Conclusion

With the new generational garbage collector Mono surely made a great leap forward. It’s impressive to see the progress the Mono team was able to make in the last months regarding performance and memory consumption. We’re already considering Mono an important part of our platform strategy – this new garbage collector and benchmark results are showing us that it’s the right thing to do!

UPDATE: There was a mishap in the “import objects per second” row of the above table.

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137 years of Popular Science is available now

That’s great news for everyone interested in science and history. As it turns out Google and PopSci just made their entire 137-year archive available online… good times!

“We’ve partnered with Google to offer our entire 137-year archive for free browsing. Each issue appears just as it did at its original time of publication, complete with period advertisements. It’s an amazing resource that beautifully encapsulates our ongoing fascination with the future, and science and technology’s incredible potential to improve our lives. We hope you enjoy it as much as we do.”

137years

Source: http://www.popsci.com/archives

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sones GraphDB Visualization Tool

We want to show you something today: Not everybody has an idea what to think and do with a graph data structure. Not even talking about a whole graph database management system. In fact what everybody needs is something to get “in touch” with those kinds of data representations.

To make the graphs you are creating with the sones GraphDB that much more touchable we give you a sneak peak at our newest addition of the sone GraphDB toolset: the VisualGraph tool.

This tool connects to a running database and allows you to run queries on that database. The result of those queries is then presented to you in a much more natural and intuitive way, compared to the usual JSON and XML outputs. Even more: you can play with your queries and your data and see and feel what it’s like to work with a graph.

Expect this tool to be released in the next 1-2 months as open source. Everyone can use it, Everyone can benefit from it.

Oh. Almost forgot the video:

 

(Watch it in full screen if you can)

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sones GraphQueryLanguage and GraphDB Quick Reference

Since we all need documentation I thought it would be a great idea to create a one-pager which helps every user to remember important things like query language syntax.

You can download the cheatsheet here:

cheatsheet 

Download here.

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So what exactly is Microsoft Research doing?

I am proud to anounce that there’s a video publicly available which shows parts and projects Microsoft Research is working on currently. It’s great to see theses projects, concepts and ideas become publicly available one by one:

“Craig Mundie, chief research and strategy officer of Microsoft, presents “Rethinking Computing,” a look a how software and information technology can help solve the most pressing global challenges we face today. Part of UW’s Computer Science and Engineering’s Distinguished Lecture Series, Mundie demonstrates a number of current and future-looking technologies that show how computer science is changing scientific exploration and discovery in exciting ways. He discusses the role of new science in solving the global energy crisis, and answer questions from the audience.”

uwtv

Source: http://www.uwtv.org/programs/displayevent.aspx?rID=30363&fID=6021

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want some more expresso?

Almost three years ago I wrote about this nice little Regular Expression Tool which provides not only a RegEx-Builder but also a clean and nice interface to test and play.

It was a CodeProject sample project in that time and as it turns out it became a full blown version 3!

Obviously the user interface was revamped completely:

expresso3 So you now not only get the Testing and playing but also a Regular Expression Library, a cool How-To, a more useable design mode and you can even output your final regular expressions to C#, VB.NET or managed C++!

Great stuff! Even better is the fact that it does not come at any costs. Despite the fact that there’s a registration you can just get your free license on their website.

Source 1: http://www.ultrapico.com/Expresso.htm
Source 2: want some espresso?

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Hail Eris! All Hail Discordia!

pope

I was in desperate need for an DDate equivalent running on Windows. DDate is an unix implementaion of date accoridng to the erisian calendar described in the principia discordia.

I only found some C Implementations. And since it’s fun to do I ported the original Discordian Date C code to C#.

You can download the C# sourcecode, licensed under CC-BY-NC here.

I also created a web page which displays the current discordian date and offers you to convert any gregorian date into discordian date representation.

This page can be accesses here. You can call another page with parameters and you only will get the ddate output back:

for example: http://ddate.schrankmonster.de/DiscordianDate.aspx?year=2009&month=6&day=9

Source 1: http://ddate.schrankmonster.de/
Source 2: http://dropbox.schrankmonster.de/dropped/SharpDDateLib.zip

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farewell Songbird

sonb

After not less than 3 and a half hour Songbird finished with importing the iTunes library I am using for about 6 years.

The first impression is: Cool, it’s got plugins!

The second impression is: Booh, it wants to restart (while stopping the music) to install!

It’s not faster than iTunes. And this is a sad thing, because the only thing I hoped it would be was faster. It’s not – the UI it’s as fast and responsive as iTunes’ UI – at best. With just a few clicks the whole songbird window went into sleep mode and the well known beachball came into the play.

Even worse: for some strange reason Songbird consumes considerably more CPU time while just sitting there and playing an MP3 than iTunes does:

songbirdcpu

18,7% CPU load used by songbird just by playing an mp3 (no filtering, no visualisation, no nothing)

itunescpu

2,3% CPU load for iTunes while doing exactly the same. Even the same mp3 was played.

iTunes even takes less memory… oh dear: A long way to go for the Songbird team.

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Google Copy-Wave

Oh dear. Another hyped protocol/platform from Google… oh wait. It’s not from Google. It’ all started in Xerox PARC…

There are several papers that describe what Google now claims to have developed…

copywave
left: Xerox PARC Paper; right: Google Wave

Conclusion: Go and read old Papers. As it turns out almost all newly hyped things have been described in papers from years ago.

Source 1: http://www.waveprotocol.org/whitepapers/operational-transform
Source 2: http://doi.acm.org/10.1145/215585.215706

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Society for Geek Advancement

“”Being a geek means being so interested in something that you don’t care whether or not it’s cool.”

THE SOCIETY FOR GEEK ADVANCEMENT was founded upon the principles that we should all embrace our inner and outer geek and have fun while doing it. As individuals who love learning, innovating and believe in possibility as well as change, the second step of responsibility is to “be the geek that keeps on giving”. As a member of SGA, we work together as a global community to provide the tools and help others realize their true potential too!”

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Source: http://geekadvancement.com/

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sones portiert sein Speichersystem auf das Speichermedium der Zukunft!

Aufgrund neuester Entwicklungen im Speichermedien-Segment wird ab dem nächsten Release des sones Speichersystems auch das angesagteste Speichermedium der Stunde unterstützt: die Speichergurke.

Durch die sensationelle Speicherdichte und unerreichte Zuverlässigkeit ist die Speichergurke das perfekte Speichermedium für den Datenhunger von gestern, heute und morgen.

Source 1: http://www.sones.de
Source 2: http://www.speichergurke.de

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Interview with Steve Teixeira at the Technical Summit 2008 in Berlin

I had the chance to interview Steve Teixeira – the Product Unit Manager for the Parallel Developer Tools team in Microsofts Developer Division.

So here is the video of this (my first) interview:

If you click here you can watch it in HD.

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DJ Morgoth: Mash-Up Your Bootz Party

Once upon a time in last.fm a user named DJMorgoth added me to his friends list. And today I had the time to take a look at his work. – And boy that is great stuff!

There’s a Mash-Up Party each month in Berlin presented by DJ Morgoth. Obviously a Mash-Up is a song made out of more than one other song. The Artist blends them together to create a unique new one normally sounding great 🙂

Here is the current schedule of these parties:

MashUp_back_november-1

If you cannot attend you’re not lost: You can download all the samplers and tracks at the mashup-your-bootz blog.

It’s just great music – thanks to the artists!

Source 1: http://myspace.com/djmorgoth
Source 2: http://www.mashupyourbootz.com/
Source 3: http://mashupyourbootz.blogspot.com/
Source 4: best of bootie article on schrankmonster

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Periodic Table of Visualization Methods

If you ever asked yourself how many visualization methods are there und how do they look like you may want to take a look at this cool website:

periodic

Source: http://www.visual-literacy.org/periodic_table/periodic_table.html

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When in need of an engine: built it yourself with Legos!

Someone built himself a (actually not working) modell of a V8 – infact if you click on the related videos in youTube you’ll find working ones… I never knew that this would be possible with lego…

leog-engine[1]

Source: http://hackedgadgets.com/2008/09/29/lego-v8-engine/
Source 2: http://uk.youtube.com/watch?v=Z8ut5ND3agI

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SpaceX’ Falcon 1 reaches orbit

On September 28th the Falcon 1 rocketship reached orbit:

orbital2

“In an era when most technology based products follow a path of ever-increasing capability and
reliability while simultaneously reducing costs, launch vehicles today are little changed from those of
40 years ago. SpaceX aims to change this paradigm by developing a family of launch vehicles and
spacecraft which will ultimately increase the reliability and reduce the cost of space access by a factor
of ten. Coupled with the emerging market for private and commercial space transport, this new model
will re-ignite humanity’s efforts to explore and develop space.”

faclon1

Source: http://www.spacex.com/webcast.php

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create panoramic images with a free tool

There was the Digital Image Suite and several other tools like Hugin and Cool360 which I used over the last years to create panoramic images. Now there’s a new tool available in 32 and 64 bit (for really really huge images!) from Microsoft Research. It’s free at this point and if you’re on Windows it’s definitely worth the try.

msice

“Microsoft Image Composite Editor is an advanced panoramic image stitcher. You shoot a set of overlapping photographs of a scene from a single location, and Image Composite Editor creates a high-resolution panorama incorporating all your images at full resolution. Then save your stitched panorama in a wide variety of formats, from common formats like JPEG and TIFF to multi-resolution tiled formats like HD View and Silverlight Deep Zoom.”

Source: http://research.microsoft.com/ivm/ice.html

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Color IQ

Uhh… I ususally don’t do that stuff but in this case I just was curious how it would work for me. Quite well I think:

yourscore

Source: http://www.xrite.com/custom_page.aspx?PageID=77

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free graph paper generator…

…if you do have a decent printer and if you haven’t got any graph paper – you could print it yourself.

graphpaper

thx to Kristian.

Source: http://www.incompetech.com/graphpaper/plain/

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Spacetime Math tools

If you searching a tool for Windows, Linux, OSX and your windows mobile device…you may want to take a look at this:

“SpaceTime 3.0 by SpaceTime Mathematics is a revolution in mathematics software with 2D, 3D, and time graphing with MobileCAS® for algebra and calculus. With features only available in Mathematica and MATLAB, SpaceTime is the most powerful cross-platform mathematics software ever developed for computers and mobile devices.

spacetime

Source: http://www.spacetime.us/

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futuristic user interfaces…

This is a very impressive overview of new user interface ideas. It’s a fact that we need new userinterfaces for all kinds of use cases – and as it turns out there are unbelievable cool things going on in the UI research.

Good user interfaces are crucial for good user experience. It doesn’t matter how good a technology is — if we, designers, don’t manage to make user interface as intuitive and attractive as possible, the technology will hardly reach a breakthrough. To gain the interest in a new product or technology, users need to understand its advantages or find themselves impressed or involved.

And here is where creative ideas and unusual interface approaches become important. Innovative doesn’t mean usable and usable hardly means innovative. As usual, it’s necessary to find an optimal trade-off. And some user interfaces manage to achieve just that.”

1

Source: http://www.smashingmagazine.com/2008/08/17/10-futuristic-user-interfaces/

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how to create your own photosynth

Photosynth is publicly available and it’s time to give it a try and play with the technology. Before starting you should be aware of some facts about the public photosynth technology-preview:

  1. all synths are uploaded and only available online (broadband needed)
  2. all synths are public, everyone can access them
  3. the synther tool runs only on Windows
  4. you’ll need a Live ID

When everything is checked you can go and upload up to 20 Gbytes of image data – my test synth takes up 200 Mbytes of the available space – so you have plenty of space to play with.

To start just install the photosynth application to view – and click “create” on the website. After the obligatory login you immediately can upload your pictures. Give it a name, ssome tags and a license and select your pictures.

createsynth_step2

Your pictures should show the same scene from different perspectives – photosynth is all about matching perspectives. After clicking on “Synth” the process starts.

createsynth_step3

And after a surprisingly short period of time your synth is done. Click on “View Synth” and you’re taken back to the website and you can browse your synth. That’s it – easy!

createsynth_step5

Source 1: my first photosynth
Source 2: Photosynth is open for the public
Source 3: create a synth

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Photosynth is open for the public

Believe it or not – it’s been 2 years since I first wrote about Photosynth technology. Today Microsoft made it available to the public. It’s not a tool (yet) – like I wanted – right now but it’s built into this website – so you have to upload your pictures, they are processed and then you can browse on this website… well it’s a start for a really great technology.

“We’re pleased to announce the first full release of Photosynth, available now at photosynth.com. Photosynth takes a collection of regular photographs and reconstructs the scene or object in a 3-D environment. For those of you who have seen the videos or tried our tech preview, you could experience synths that we made in the lab and get a feel for what Photosynth is and how it works. But now, for the first time ever you can create synths from your own pictures and share them with your friends. Explore great synths from others or create a few of your own.”

halo3photosynth

It’s not going to work on anything different than Windows. So stick to the movies if you’re on anything else. But as far as I know it’ll run o

Source 1: http://photosynth.net/Default.aspx
Source 2: http://www.schrankmonster.de/PermaLink,guid,fdc3d1fb-4966-418b-83ea-1e0c12aae833.aspx

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Munich in 3D …

OMG! I just realized that the better part of Munich is available in Google Earth in 3D mode – which means real real 3D buildings like this. I thought that the birds eye view of Virtual Earth is cool – but this is a different animal.

googlearth

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Indlebe Radio Telescope made by students detects (natural) radio signal

“Last week, the Indlebe Radio Telescope, situated on the Steve Biko campus of the Durban University of Technology, successfully detected its first radio source.
The Indlebe Radio Telescope is a transit instrument that operates at the Hydrogen Line frequency of 1420 MHZ and uses a very sensitive radio receiver to detect extraterrestrial radio signals.
Stuart MacPherson, project leader in Electronic Engineering at the university, said he and his students were amazed when they realised the telescope had picked up a signal.
“We had made significant changes to the receiver to increase its sensitivity. When we went in that morning to check the data, we found that it had detected a source,” he said.”

It’s unlikely to be from an unnatural alien source but if you take in account that all the equipment was built by students on the campus of Durban Universit… that is just astonishing.

skyeyes

Source 1: http://www.thirdeyeconcept.com/forums/index.php?page=258
Source 2: http://indlebe.dut.ac.za/

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littleBits – modular electronics that sticks together

It’s like lego for electronic circuits:

“littleBits is an opensource library of discrete electronic components pre-assembled in tiny circuit boards. Just as Legos allow you to create complex structures with very little engineering knowledge, littleBits are simple, intuitive, space-sensitive blocks that make prototyping with sophisticated electronics a matter of snapping small magnets together. With a growing number of available modules, littleBits aims to move electronics from late stages of the design process to its earliest ones, and from the hands of experts, to those of artists, makers and designers.”

Source: http://www.ayahbdeir.com/littleBits/

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Augmented Reality Project “Levelhead” – Sourcecode is available

I wrote about Levelhead and it’s stunning concept not long ago. Now you can play with it’s code and try it for youself:

floorplan_lg2

“First thing’s first, this is a developer release and needs to be compiled. It has many third-party dependencies from the renderer to the video capture context. As yet there is no lovely statically linked binary of levelHead or automagical build script for a folder of dependencies. Nonetheless, I’ve installed levelHead on many (Ubuntu) systems now and what’s listed below should work fine for you.
levelHead is known to build on Ubuntu 7.10/7.04 and Debian Etch systems against the following external dependencies. It’s adviseable you adhere to these versions if you want to avoid going spontaneously mad”

The site goes on:

Code and assets are provided under two differing licenses: the code is governed by the GPLv3 and the art is covered by the GPLv3 compatible CC-BY_SA 3.0. Make sure you understand what that implied before downloading this project. For the rationale as to why I chose this configuration, please read the comments in the top of the levelHead.cpp file itself. Both art and code are available in a subversion repository, aquired with the following command:

svn co http://www.inclusiva-net.es/svn/levelhead "

Since I will try it myself (installing Ubuntu now) – I will give a detailed tutorial about it in the future…at least I hope so.

Source: http://julianoliver.com/levelhead

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Formula Student 2008

Since last year FeM is recording and live streaming the annual Formula Student Event in Germany:

“Screeching tires, smouldering heads and impressive technical innovations – welcome to the Formula Student Germany 2008!
Join the Brunel Race at our stand. As a virtual race driver you’ll be able to win the Grand Prix at the Hockenheimring. The fastest driver gets the chance to win 2 tickets for the Formula 1 Event at Nürburgring 2009.”

If you don’t know what Formula Student is…you may want to read this:

“Students build a single seat formula racecar with which they can compete against teams from all over the world. The competition is not won solely by the team with the fastest car, but rather by the team with the best overall package of construction, performance, and financial and sales planning.

Formula Student challenges the team members to go the extra step in their education by incorporating into it intensive experience in building and manufacturing as well as considering the economic aspects of the automotive industry. Teams take on the assumption that they are a manufacturer developing a prototype to be evaluated for production. The target audience is the non-professional Weekend-Racer, for which the racecar must show very good driving characteristics such as acceleration, braking and handling. It should be offered at a very reasonable cost and be reliable and dependable. Additionally, the car’’s market value increases through other factors such as aesthetics, comfort and the use of readily available, standard purchase components.

The challenge the teams face is to compose a complete package consisting of a well constructed racecar and a sales plan that best matches these given criteria. The decision is made by a jury of experts from the motorsport, automotive and supplier industries. The jury will judge every team’s car and sales plan based on construction, cost planning and sales presentation. The rest of the judging will be done out on the track, where the students demonstrate in a number of performance tests how well their self-built racecars fare in their true environment.”

fstudent

Starting this friday there will be a livestream available (Flash and Windows Media). Great stuff!

Source 1: Livestream
Source 2: http://formulastudent.tv/
Source 3: http://www.formulastudent.de

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NASA opens it’s picture library

It’s just great to see more and more big archives are getting available online. This time the National Space Agency of America opened it’s picture library:

“NASA Images is a service of Internet Archive ( www.archive.org ), a non-profit library, to offer public access to NASA’s images, videos and audio collections. NASA Images is constantly growing with the addition of current media from NASA as well as newly digitized media from the archives of the NASA Centers.
The goal of NASA Images is to increase our understanding of the earth, our solar system and the universe beyond in order to benefit humanity. “

nasa

Source: http://www.nasaimages.org/

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Graph theory: How to visualize a network

Since I am a bit familiar with graph theory and building technologies around graphs I came across this neat little library originally developed by Marc Smiths Team at Microsoft Research. It’s now up on Codeplex for your own study and research:

“.NetMap is a pair of applications for viewing network graphs, along with a set of .NET Framework 2.0 class libraries that can be used to add network graphs to custom applications.

A network graph is a series of vertices (sometimes called nodes) connected by edges. See this Wikipedia article for an overview of network graphs.”

Graph6 Graph1

Graph12

It even integrates into Excel…well if you need that… more interesting is:

“The Windows Forms control is one of several graph “visualizers” that are packaged in a Microsoft.NetMap.Visualization assembly. There is also a Microsoft.NetMap.Adapters assembly for reading and writing graph data in various formats, a Microsoft.SocialNetworkLib assembly for analyzing social networks, and a Microsoft.NetMap.Core assembly that implements the low-level vertex, edge, and graph classes. The framework for a Microsoft.NetMap.Algorithms assembly is also provided, although most of the graph algorithms are still work items as of May 2008.”

Source 1: http://research.microsoft.com/~masmith/
Source 2: http://www.codeplex.com/NetMap

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What about the user interface? UI guidelines all together now!

You may have heard about things like “guidelines for user interfaces” – Sometimes I tend to think that there is no such thing as a design guideline for a better user interface because some applications are just plain unusable for a normal human being.

But there are guidelines for almost everything and I wanted to give an overview:

Microsoft:

Apple:

Linux:

  • KDE Standards User Interface Guidelines
  • GNOME Human Interface Guidelines
  • Motif Style Guide

interesting ones:

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self replicating machines

When I thought of self replicating machines I thought of end-of-time scenarios and a robot armies conquering the world and enslaving the human race… it’s not that bad right now but we’re getting to it… sort of 🙂

pc-va

“Adrian Bowyer (left) and Vik Olliver (right) with a parent RepRap machine, made on a conventional rapid prototyper, and the first complete working child RepRap machine, made by the RepRap on the left. The child machine made its first successful grandchild part at 14:00 hours UTC on 29 May 2008 at Bath University in the UK, a few minutes after it was assembled.”

“RepRap is short for Replicating Rapid-prototyper. It is the practical self-copying 3D printer shown on the right – a self-replicating machine. This 3D printer builds the parts up in layers of plastic. This technology already exists, but the cheapest commercial machine would cost you about €30,000. And it isn’t even designed so that it can make itself. So what the RepRap team are doing is to develop and to give away the designs for a much cheaper machine with the novel capability of being able to self-copy (material costs are about €500). That way it’s accessible to small communities in the developing world as well as individuals in the developed world. Following the principles of the Free Software Movement we are distributing the RepRap machine at no cost to everyone under the GNU General Public Licence. So, if you have a RepRap machine, you can make another and give it to a friend… “

Source: http://reprap.org/bin/view/Main/WebHome

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speaking of Augmented Reality

It seems that I missed that Augmented Reality Toolkit all the way until now. It’s ARToolKit and it’s completely OpenSource.

As a matter of fact there are a ton of demos available… HOW could I possibly miss that for so long?

“ARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object.

One of the key difficulties in developing Augmented Reality applications is the problem of tracking the users viewpoint. In order to know from what viewpoint to draw the virtual imagery, the application needs to know where the user is looking in the real world.”

Here is a short video demonstration of what you could start with:

…not talking about the things that would be possible if someone had a great idea 🙂

Source: http://www.hitl.washington.edu/artoolkit/

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Augmented Reality Game soon available (full source!)

You may have heard about Levelhead – an augmented reality game made by Julian Oliver – if you did not hear about it? No problem:

Augmented reality (AR) is a field of computer research which deals with the combination of real-world and computer-generated data. At present, most AR research is concerned with the use of live video imagery which is digitally processed and “augmented” by the addition of computer-generated graphics. Advanced research includes the use of motion-tracking data, fiducial marker recognition using machine vision, and the construction of controlled environments containing any number of sensors and actuators.”

So – Augmented reality mixes the reality and the computer graphics and creates a new reality for you. That’s a lot of theoretical…so let’s talk about Levelhead:

It’s a game where you have to move plastic cubes with printed-on patterns in front of a camera – the computer now renders a new world inside of the plastic cubes – when you move the cube, the world inside the cube moves too… it looks like this:

lh_4_med

“levelHead uses a hand-held solid-plastic cube as its only interface. On-screen it appears each face of the cube contains a little room, each of which are logically connected by doors.
In one of these rooms is a character. By tilting the cube the player directs this character from room to room in an effort to find the exit.

Some doors lead nowhere and will send the character back to the room they started in, a trick designed to challenge the player’s spatial memory. Which doors belong to which rooms?

There are three cubes (levels) in total, each of which are connected by a single door. Players have the goal of moving the character from room to room, cube to cube in an attempt to find the final exit door of all three cubes. If this door is found the character will appear to leave the cube, walk across the table surface and vanish.. The game then begins again.
Someone once said levelHead may have something to do with a story from Borges.. For a description of the conceptual basis of this project, see below. “

If you are not amazed now? You should watch this:

The thing is – this cool game and technology will be available at the end of this month as full open-source. I suggest to check Julians site back at the end of the month at last.

Source 1: Augmented Reality @ Wikipedia
Source 2: Levelhead homepage

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How to play a shooter in 16 pixel by 16 pixels space

It’s really a piece of art with only 256 pixels space – it’s the remake of the Defender game you won’t be able to play in Full HD:

DEFENDER of the favicon is a JavaScript remake of Eugene Jarvis‘ brilliant arcade game Defender written by Mathieu ‘p01’ Henri and inspired by Scott Schiller‘s experiment with generated favicons VU meter. The idea was to push the concept of generated favicons further and pack a thrilling retro shooter in 16×16 pixels using JavaScript, canvas and data: URIs.”

“Each frame of the game is generated on the fly in JavaScript into a 16×16 canvas element, then converted to a 32bits PNG image and used in place of the favicon.”

To be clear: This is not a joke – it’s an actual game… the size of:

16x16defender

Source: http://www.p01.org/releases/DHTML_contests/files/DEFENDER_of_the_favicon/

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Radioheads “House of Cards” music video + raw data released under CC license

I seriously don’t know why they are doing that – it’s not as if any material released previously came to any notice so far – but what the heck – Radiohead decided to put their current music video (which isn’t bad) and the raw data that was used to create it to the public using the Creative Commons license:

“The animation data used to make the video are licensed to the public under a Creative Commons Attribution-Noncommercial-Share Alike license at Google Code. This means you are free to use the data to make your own video projects, as long as you abide by the CC license’s conditions. (To be clear, the song and its accompanying video are not under CC license; the data used to make the video are.)”

houseofcards_radiohead

Source: http://code.google.com/creative/radiohead/

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FIWAK 2008 Trailer

I am once again pleased to present the official Trailer for this years FIWAK. FIWAK is the annual outdoor-conference presented by FeM e.V.. This year these lectures are planned (german only):

  • Openstreetmap-Workshop von Markus Brückner und Dominik Tritscher
  • Technische Grundlagen DVB-T von Sebastian Schwarz
  • Opensource Videobearbeitung von Florian Raschke
  • FeM-Geschichte von Mario Holbe
  • Vereinsinterne Kommunikation von Michael Bock
  • Tanzworkshop mit Udo Pescheck
  • Bewerbungstraining mit MLP
  • Whiteboard-Technologien von Smart Systems

FIWAK takes place from 20. to 22. June 2008 in the forest around Elgersburg – a small town near Ilmenau. But now watch the trailer:


Video: FeM FIWAK 2008 Trailer

Source 1: FIWAK Homepage

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When you’re in need of a good whiteboard… use Wii controllers + homebrew

Oh yeah. I talked about these kinds of electronic whiteboards for years – and now it seems that there is a cheap and really useful DIY solution created by Johnny Chung Lee(beside several other really useful and astounding DIY jobs)

“Since the Wiimote can track sources of infrared (IR) light, you can track pens that have an IR led in the tip. By pointing a wiimote at a projection screen or LCD display, you can create very low-cost interactive whiteboards or tablet displays. Since the Wiimote can track upto 4 points, up to 4 pens can be used. It also works great with rear-projected displays.”

So you need:

  • a Wiimote
  • a selfmade Infrared-LED Pen that marks the trackable point

So namenlos (his blog) did his version of the Wii whiteboard and made a video of it:


Video: Wii Whiteboard

(due to music the license of this video is CC-BY-NC-SA)

Really impressive isn’t it? And you can do so much more with this Wiimote stuff. – Actually I am planning to get such a Wiimote and a Pen and try it myself.

Source 1: http://www.cs.cmu.edu/~johnny/projects/wii/
Source 2: http://blog.slash-me.net/archives/268-Wii-Whiteboard.html

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watch NASA TV live streams at higher bitrates (quality)

They landed on the mars again…and they will launch a space shuttle within the next 22 hours if everything works out as planned. So maybe you, just like me, are interested in getting some live-information about that.

There’s NASA TV but on the NASA website you only get low (150kbit) bitrate streams. If you want better quality, just try these links:

Of course you can always go with the standard website livestream…

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TechFest 2008: Turning Ideas Into Reality

I told you, I would write about the things I am working on for the past months. And last week TechFest 2008 took place in Redmond/WA at Microsoft. Almost the whole team I am working with was there – I haven’t spoken to anybody yet personally but it seems to have gone well:

Rick Rashid, Microsoft Research senior vice president shows a prototype device with a Web-service interface developed by Microsoft researchers that runs an energy-management application that saves energy by actively monitoring the weather and energy variations. This is one of 40 exciting emerging technologies on display at Microsoft TechFest 2008 which brings researchers, customers, academics, dignitaries and employees. Redmond, Wash., March 4, 2008. Robert Sorbo/Microsoft/Handout

“Microsoft Research’s TechFest is an annual event that brings researchers from Microsoft’s labs around the world to Redmond to share their latest work with the product teams. Attendees will experience some of the freshest, most innovative technologies emerging from Microsoft’s research efforts. The event provides a forum in which product teams and researchers can discuss the incredible work occurring in the labs, thereby encouraging effective technology transfer into Microsoft products.”

research 
fast forward to minute 24…one of the interesting bits starts right there!

Source 1: http://wm.microsoft.com/ms/research/events/TechFest2008/TF08Keynote.wmv
Source 2: http://research.microsoft.com/techfest/
Source 3: http://www.schrankmonster.de/PermaLink,guid,cf5f2c46-60d2-4bb6-b58b-c50f5f3ce4d8.aspx

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Singularity Sourcecode finally available…

The last time I wrote about Singularity was in 2005 when the first news came up… and now:

For all those source code kids – the sourcecode of Singularity – the research operating system written by people at Microsoft Research completely in .NET is now available.

singularity

from the Microsoft Research Overview page:

“Singularity is a research project focused on the construction of dependable systems through innovation in the areas of systems, languages, and tools. We are building a research operating system prototype (called Singularity), extending programming languages, and developing new techniques and tools for specifying and verifying program behavior.

Advances in languages, compilers, and tools open the possibility of significantly improving software. For example, Singularity uses type-safe languages and an abstract instruction set to enable what we call Software Isolated Processes (SIPs). SIPs provide the strong isolation guarantees of OS processes (isolated object space, separate GCs, separate runtimes) without the overhead of hardware-enforced protection domains. In the current Singularity prototype SIPs are extremely cheap; they run in ring 0 in the kernel’s address space.

Singularity uses these advances to build more reliable systems and applications. For example, because SIPs are so cheap to create and enforce, Singularity runs each program, device driver, or system extension in its own SIP. SIPs are not allowed to share memory or modify their own code. As a result, we can make strong reliability guarantees about the code running in a SIP. We can verify much broader properties about a SIP at compile or install time than can be done for code running in traditional OS processes. Broader application of static verification is critical to predicting system behavior and providing users with strong guarantees about reliability.”

You can even watch a small movie about Singularity here:

c9singularity

Source 1: http://research.microsoft.com/os/singularity/
Source 2: http://channel9.msdn.com/ShowPost.aspx?PostID=68302
Source 3: http://www.codeplex.com/singularity

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how about 16.8 Terabytes of Mars? (the planet!)

You do realise that, despite that fact no mass media is talking about it, there are still robots around and on Mars doing research for the last years? Yeah you’re right: Spirit and Opportunity are still well and alive on Mars. There were several other missions and this newly released 9.9 Tbytes of data (adds up to 16.8 Tbytes) is just fantastic stuff.

See an avalanche on Mars:

PSP_007338_2640

“How much data was released? 2422 observations, making up 9.9 terabytes “in over 225,599 standard PDS and extras products” according to our database specialist. This was for data between orbit ranges 4400 and 6999, or between July 05, 2007 and January 23, 2008 (which is a lot of loops around the Red Planet!)

We have now released a total of 16.8 TB worth of data, or nearly 500,000 image products. Please check out the latest images on the HiRISE website on the “March 2008: New HiRISE Images Released to the Planetary Data System” page.”

Source 1: http://hirise.lpl.arizona.edu/HiBlog/?p=147
Source 2: http://hirise.lpl.arizona.edu/PSP_007338_2640
Source 3: http://pds-imaging.jpl.nasa.gov/
Source 4: http://hirise-pds.lpl.arizona.edu/PDS/
Source 5: http://marsrovers.jpl.nasa.gov/home/index.html

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