Asteroides descubiertos

martes, 31 de agosto de 2010

Interesante video que muestra la increible cantidad de asteroides descubiertos en nuestro sistema solar. Vean el final del video!

"View of the solar system showing the locations of all the asteroids starting in 1980, as asteroids are discovered they are added to the map and highlighted white so you can pick out the new ones.

The final colour of an asteroids indicates how closely it comes to the inner solar system.
  • Earth Crossers are Red
  • Earth Approachers (Perihelion less than 1.3AU) are Yellow
  • All Others are Green

As the video moves into the mid 1990′s we see much higher discovery rates as automated sky scanning systems come online. Most of the surveys are imaging the sky directly opposite the sun and you’ll see a region of high discovery rates aligned in this manner.

Currently we have observed over half a million minor planets, and the discovery rates snow no sign that we’re running out of undiscovered objects."

The story of stuff

martes, 24 de agosto de 2010

Video con interesantes comentarios y estadísticas sobre las cosas que compramos.