Roumazeilles.net

Category: Sciences

  • The Orchidaceae of Mexico and Guatemala

    The Orchidaceae of Mexico and Guatemala

    Awesomely superb, “The Orchidaceae of Mexico and Guatemala” is an illustrated book (download in PDF) by James Bateman that you can find in Botanicus.org wbe site of the Missouri Botanical Gardens.

  • Extreme tanks

    Extreme tanks

    Even knowing that those are machines created to kill people, you will not be able to keep yourself from laughing or smiling at some of absurdly extreme designs generated by the brains of some military engineers. Source: Dark Roasted Blend.

  • Anatomy of an illusion

    All the details about a simple optical illusion and what we can learn from it about the inner workings of the human brain.

  • The most agile robot on Earth

    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…

  • 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…

  • Diffraction and digital photography

    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…

  • Astronomical optical illusion

    Astronomical optical illusion

    V838 Monoceroti Expansion (Hubble) It wasn’t anything interesting until it happened but the star V838 Monoceroti, which had simply sat in obscurity, flared up in 2002 to become 600,000 more luminous than our own Sun. It didn’t take long for the star to fade back into the darkness but the Hubble Space Telescope managed to…

  • Near the end of whaling?

    This is the question or the hope that we can have after the opening of a legal investigation in Japan. A public prosecutor announced on last 19th of May that he decided to explore the observed operations of sale of whale meat to restaurants. Greenpeace actively participates and there are many people hoping this to…

  • Japan: Whaling for research purposes

    Japan: Whaling for research purposes