Category: Sciences
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Reliability of lead-free soldering
For those of you who asked for more details about the reliability of lead-free soldering (see the end of my previous titled “Manufacturing of electronic boards“, I have found an interesting and useful analysis from Numonyx (now Micron Semiconductors). Lead-free and leaded package soldering compatibility – Backward and forward compatibility This white paper explores the…
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Perspective on global warming
I like to see it summarized in a wider scope on the following graph: What do you not see? Via: ScienceBlogs.
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Cold? Really?
If you think that this Winter’s cold wave is really tough, you’d better think again. People living in parts of Russia welcome -20°C as the comeback of Spring… when it comes after -50°C. (images credit: Evgeny Bugaev) (images by V. Makushkin, via)
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After 800,000 years: Global warming
How did carbon dioxide evolve in Earth atmosphere in the nearly 1 million years in the past? YouTube link
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The mimic octopus
This is an extremely weird octopus which -like many other octopuses- is able to change its skin color. It does it much better than usual, but its real prowess is its ability to change its body form to simulate or mimic the appearance of other aquatic animals. Absolutely astonishing. YouTube link
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Water droplet on carbon nano-tubes [video]
A carbon nanotube array is actually extremely hydrophobic (pushes water away). This makes bouncing water onto it quite interesting. For scentists and for us onlookers. YouTube link
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ISS Tour – Welcome To The International Space Station!
We’re still wondering what this ISS space station is for. We can see it from the ground at night. But, now, we can visit it as comfortably as some of the apartments on sale with Real Estate agents, as if NASA was trying to sell it. YouTube link
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Benoît Mandelbrot, RIP
The creator of the fractal concept, Benoît Mandelbrot, just died. Born in Poland, the great mathematician had both French and American citizenship and inspired millions of mathematicians and artists. Rechercher des fractales sur Google.
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Fruits and vegetables in hospital
Normally, Magnetic Resonance Imaging (MRI) is interesting only the physicists for its uses in scientific research and the physicians for the fabulous pictures it gives of the insides of the human body. An MRI scanner will allow to display fine cuts of the body of the patient laid into the machine, but what is to…