Archive for October, 2007

STIX Fonts or 8,047 Glyphs

Wednesday, October 31st, 2007


After about 10 years, the STIX fonts project published their fonts for beta testing today. Their goal

is the preparation of a comprehensive set of fonts that serve the scientific and engineering community in the process from manuscript creation through final publication, both in electronic and print formats.

The fonts will be provided under a royality free license.

error incognito

Monday, October 29th, 2007

If we move around in space-time we can obtain much more information about the surrounding space-time than by just watching it. For example swimming is very different in a curved than in a noncurved space (-> here a website where observations are made how swimmers move around in various environments).

However linking sensoric information with motoric information, like in computer science applications is a very difficult task. The library on the website of David Philipona of the Laboratoire Psychologie de la Perception has a good collection of links, like for example to the Max-Planck-Institut for Biological cybernetics with its famous virtual treadmill project cyberwalk.

The group at the Laboratoire did some works in order to find a mathematical formulation of how to gain information about the surrounding space via sensoric/motoric information, like e.g. in their paper
Perception of the structure of the physical world using unknown multimodal sensors and effectors

no light light pulses

Thursday, October 25th, 2007


(left) a photosynthetic reaction center (rc) and (right) rc + and light harvesting complexes in a membrane (image source)

Todays title of the magazine nature reported about an experiment where the electron transport in a crystall could be observed within an range in the order of 10 attoseconds (10*10^{-18}s= 10 as).

about renewable energy targets

Wednesday, October 24th, 2007

Todays newspapers were full of mentioning yesterdays talk by Al Gore in Berlin.

views of the world

Wednesday, October 24th, 2007

Scientific visualization from the past: In 1660 Andreas Cellarius published his Harmonia Macrocosmica. A beautifully illustrated star atlas. Here are nice scans of the plates while here and here are online browsable scans of the book. via the cartoonist

on the future of music in berlin

Thursday, October 18th, 2007


I am currently a bit concerned about the future of music perception in Berlin.


from wallpainting to illumination

Thursday, October 18th, 2007


“objet trouvé” photographic artwork by Mussaf Schaehmer.

It has always been fun to watch the productions of designer collective rAndom international. Starting out with the famous pixelroller (a paint roll rolling out pixels onto the wall) and the mass production pixel tape (a tape customizing pixelized writings) they seem to get more and more into lighting, like e.g. one of their newest products sunlight table.

on the perception and cognition of images

Monday, October 15th, 2007


constrained writing

Friday, October 12th, 2007

Recently I ran over this peculiar piece of constrained writing:
Poe, E.: Near a Raven

nuclear energy in the US

Wednesday, October 10th, 2007

(a nuclear energy game, seen on Alte Schoenhauser Allee)

According to an article in the technology review the company NRG Energy “filed the first application for new nuclear reactors in the United States since 1978.”