Author: Yves Roumazeilles
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Free university education
You may not have the time and money to go to University lectures. But there are other open options that the Internet is now offering. Many universities and famous institutions provide free online lectures. Let’s browse a few of the best ones I could find: Collège de France : the most famous French scientific institution…
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Concept: visualize the contents of a hard disc
Your hard disk drive is a black box in more meanings than one. Wouldn’t it be pleasant to be able to directly visualize its contents? That is the core of the following proposal: an external hard disc drive whose surface is covered by an OLED screen used to display a treemap contents like it’s done…
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HD-DVD season’s sales
As everybody is starting to understand that Blu-Ray won the Hirez battle for the next generation DVD format, the other contender is seeing its products dumped en masse on eBay. If you (still) want to buy a HD-DVD player, it’s your lucky day. Go to eBay auction outfit and you’ll find dozens of players for…
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HDR photography, a few links
HDR photography (High Dynamic Range Photo) is a process where you take several photo pictures with very different exposures (different speeds or different apertures) and then use a software to pack them into one image packing the whole range of light. The result is often a little erie but allows to take images impossible to…
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Forgotten technology: Sound mirrors
Did you know that, before the actual deployment of radar, the localisation of flying planes was done by listening to them? With a good sound mirror, you could hear the motor of a plane from very far. And a sound mirror is essentially a wall able to reflect sound (like in a subway station or…
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Time-lapse sequences: How-to and a 20000-image example
If like me your a photographer who wouldn’t dare making a video, you still can think about doing a decent time-lapse sequence out of your photographs. However, this cannot happen just by taking images and loading them into a software. You must start by studying the lessons from PhotoJojo.com’s Ultimate Guide to Time-Lapse Photography. When…
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Sunbittern
Click on the thumbnail image to enlarge it Sunbittern (Eurypyga helias, Caurale soleil). Brazil, 2007.
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A wave of an optical illusion
Try and find some really straight lines! Illusion created by Akiyoshi Kitaoka.