Cinderella “is a software for doing geometry on the computer, and it is designed to be both mathematically robust and easy to use. Read more about it on our website, check some interactive examples or download a demo to see yourself.” “You may download a copy of Cinderella for evaluation purposes here. This time-limited demo […]
Happy Easter! Our easter sunday started with getting up later than intended because daylight saving time started today. After some nice weather at the beginning of the week it was cool and overcast today. Since I also have a cold we decided to just go for a short walk. A colleague had told me about […]
Astronomy According to AstroAlert, there was a major solar flare at 04:35 UTC on 28 October. The page has more information and some spectacular images as well. The solar flare may result in auroras (Nordlichter!) that may be visible in low latitude areas on October 28 and 29. Since northern lights are almost never visible […]
Interface Design Forbes.com: The Humane Touch: Bad Design Can Be Costly. The author, Jef Raskin, is the “father of the original Macintosh project, he named it after his favorite apple”. Link via Susan. Physics BBC News: The Secret of matter discovered. Charge Parity (CP) violation is responsible for the fact that there is more matter […]
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