Category: Sciences
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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…
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Let the US government teach you a language
These are language courses which have been developed by the US government and are set in the public domain. So, you can use them as much as you want. A long list of languages: Amharic Arabic Bulgarian Cambodian Cantonese Chinese Chinyanja Czech Finnish French Fula German Greek Hausa Hebrew Hindi Hungarian Igbo Italian Japanese Kituba…
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Test for Earthquakes
Building a tall structure able to resist the worst earthquakes, asks for some flexibility in the architecture. For this, it may be useful to do some tests simulating the furious conditions of a real earthquake. YouTube link
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Inside a 4-stroke piston engine
You certainly know the basic principles of the operation of a 4-stroke engine with its different phases: piston going down to suck gas and air in piston going up to compress the mixture piston going down pushed by the explosion piston going up to push burnt gas out of the cylinder Let’s admire the actual…
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Genetics 101
If you were not sure that genetics was a science, you needed a controlled experiment. Here is the result of such an experiment:
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High temperatures, low temperatures
Here, we don’t even speak about Summer or Winter; This is not about global warming either. The Rasmussen College presents us a great poster sweeping the widest possible range of temperatures to allow us to travel through universe’s thermal diversity. I hope they will sell the poster somewhere.
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The Scale of the Universe
A nice Flash animation that you can play with to get a grasp of the dimensional diversity of our universe. Fly from portion of a yocto-meter to many yotta-meters.