The Elegant Universe

Created on Wednesday, 29 June 2011 11:55

The fundamental particles of the universe that physicists have identified—electrons, neutrinos, quarks and so on—are the "letters" of all matter. Just like their linguistic counterparts they appear to have no further internal substructure. String theory proclaims otherwise. According to string theory, if we could examine these particles with even greater precision—a precision many orders of magnitude beyond our present technological capacity—we would find that each is not pointlike but instead consists of a tiny, one-dimensional loop. Like an infinitely thin rubber band each particle contains a vibrating, oscillating, dancing filament that physicists have named a string.

This simple replacement of point-particle material constituents with strings attempts to resolve the incompatibility between quantum mechanics and general relativity which, as currently formulated, cannot both be right.

Beyond The Big Bang

Created on Saturday, 31 July 2010 14:33

This documentary explores the ultimate historical event as it almost literally transports viewers to the very beginnings of the cosmos. It describes the history of cosmology and how we've pieced together scientific knowledge to support the Big Bang theory.

Relive the moments of history's greatest astronomical discoveries as the wonders of space come alive through computer animations.

Hubble – 15 Years Of Discovery

Last updated: April 28, 2019 at 20:50 pm

Created on Saturday, 31 July 2010 16:35

The Hubble Space Telescope, named after astronomer Edwin Hubble, is one of the most successful scientific projects of all time.

Positioned outside the Earth's atmosphere it has significant advantages over ground-based telescopes — images are not blurred by the atmosphere, there is no background from light scattered by the air, and the Hubble can observe ultra-violet light that is normally absorbed by the ozone layer in observations made from Earth.

Since its launch in 1990, it has become one of the most important instruments in the history of astronomy. With it, astronomers have made many observations leading to breakthroughs in astrophysics.