Category: Science & Geeks
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A few LifeHacker posts about Photoshop
I have collected a few posts at LifeHacker that I wanted to share with you because they are concentrating on some easy and powerful techniques to be used with Photoshop. Create Eye Catching Color Effects on Black-and-White Photos Create Photorealistic Reflections in Photoshop Reduce Redundancy by Creating Photoshop Actions
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Nikon D90
Hardly believable, scoops about the Nikon photo camera that should quickly replace the Nikon D80 are popping all over the place with the active support of Thom Hogan, reknown expert for the photo brand. We already knew that it would be named Nikon D90 which is not surprising. But little details are pouring on us…
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Canon at the Olympic Games
The current rumour is that top hats from Canon Japan are currently travelling to China to support the imminent launch of one or two new SLR cameras for the brand. It would be the replacement for the Canon EOS 5D (the most repeated name is now Canon EOS 7D, but who knows) and the successor…
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The most agile robot on Earth
Usually, robots you see in real life are hardly able to move around or to behave… like a robot. This one is all the more impressive. It moves, it walks, it runs on four legs adapting itself to nearly any kind of rough terrain as well as a mule, a dog, or a man (on…
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Cuil, what about it?
The newest fad about search engines is Cuil (say “cool”). It’s been created by people from Google and is set to replace Google (or is it?) I tried it and I could not think of a reason to use it. The biggest problem is that it does not find anything useful. I may be a…
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Kata practice for the programmer
A martial arts adept knows how much you have to repeat the same basic exercise (a kata) before mastering free fight. This is the same with most pianists who need to practice long and often to get reflexes, natural grace. So, why not the same for programmers? Dave Thomas decided to create basic exercises for…
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Sudden drop of minke whale populations
A scientific study coming from Iceland suggest that in the recent years the minke whale population suddenly dropped from 45000 in 2001 to less than 15000 last year. This is a enormous change that is not yet explained for a small whale that was more or less protected by its smaller size (big whales bring…
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Moving to WordPress 2.6
For most people, this is absolutely minor information, but the web site just went through an important change. Nearly nothing visible (except some possible bugs still to be uncovered), but it’s now using WordPress v2.6 (the latest version of this excellent tool to manage web sites and blogs). This should help a little the readers…
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Diffraction and digital photography
Several times, I talked about the limitation to photo image quality by light diffraction but I failed to go into the details. To the general request of one reader who asked, I will try to give some explanations to better understand why the digital photographer must absolutely take that into account to make better pictures…