Hat noch weniger 3D-Modelle als Google Earth, ist mit 3D-Brille aber faszinierender. Rot/Cyan 3D-Brillen gibt's recht billig z.B. bei Amazon.

Faszinierender, animierter Größenvergleich des Universums. Von Strings und Neutrinos bis zu Galaxien und Superclustern.

Von Mike und Cary Huang, die auf ihrer Seite auch noch andere lustige Tools und Spiele haben (z.B. No Walking, no Problem).

Faszinierende Story über die Reparatur eines 0.23 MegaVolt Untergrund-Kabels.

To complicate matters the cable consists of a copper center conductor living inside a 16 inch diameter pipe filled with a pressurized oil dielectric. Hundreds of thousands of gallons live in the entire length of pipe. Finding the fault was hard enough. But having found it they still have a serious problem. They can't afford to drain the whole pipeline - the old oil (contaminated by temporary storage) would have to be disposed of and replaced with new (pure) stuff which they claim takes months to order (in that volume). The cost of oil replacement would be gigantic given that it is special stuff. They also claimed the down time is costing the costing LA $13,000 per hour. How to fix it and fast?

Bemerkenswert genaue Handschrifterkennung für Formeln, als Demo für Vision Objects' MyScript-Technologie. Wirft LaTeX und MathML aus.

Neben Formeln gibts auch normale Text-, Formenerkennung und mehr.

1. Am 31. August stellt jemand auf reddit die Frage "Could I destroy the entire Roman Empire during the reign of Augustus if I traveled back in time with a modern U.S. Marine infantry battalion or MEU?"

2. User Prufrock451 antwortet mit einem langen Kommentar. Der Beginn einer Story.

3. Die Story ist gut.

4. So gut, dass ein eigenes subreddit dafür kreiert wird. r/RomeSweetRome ist geboren, wird Subreddit of the Day, die Community bastelt einen Soundtrack und Poster.

5. Nach einer Weile werden Posts rar, r/RomeSweetRome wird zur Geisterstadt. Man rumort, Prufrock451 arbeitet an einem Screenplay.

6. Vor 30 Minuten: Prufrock451 (James Erwin) gibt bekannt, dass Warner Brothers das Screenplay gekauft hat.

7. TV Show, Film?

"This is an epic result," adds Clifford Will of Washington University in St. Louis. [...] "One day," he predicts, "this will be written up in textbooks as one of the classic experiments in the history of physics." [...]

The idea behind the experiment is simple:


Put a spinning gyroscope into orbit around the Earth, with the spin axis pointed toward some distant star as a fixed reference point. Free from external forces, the gyroscope's axis should continue pointing at the star--forever. But if space is twisted, the direction of the gyroscope's axis should drift over time. By noting this change in direction relative to the star, the twists of space-time could be measured.


In practice, the experiment is tremendously difficult.


The four gyroscopes in GP-B are the most perfect spheres ever made by humans. These ping pong-sized balls of fused quartz and silicon are 1.5 inches across and never vary from a perfect sphere by more than 40 atomic layers. If the gyroscopes weren't so spherical, their spin axes would wobble even without the effects of relativity.

Bild von scienceblogs.com

Spaziergang durch Russland, plötzlich: Monumente.