Free Science Videos and Lectures

Dr. Quantum welcomes you to flat-land, the world of only two dimensions!

In this world there is only forwards, backwards and left and right. There is no up and no down!

In this world two...

This science video contains:
space, sphere, dr quantum, flat land, 2d, two dimensions, 3d, three dimensions, dimension, up, down, back, forward, creature, unknown, cube, tetrahedron, ellipse

The universe began with the big bang, and for the first four hundred thousand years all matter was ionised, indicated by the blue region in the diagram. When the universe had cooled enough to allow...

This science video contains:
matter, stars, earth, big bang, galaxies, light, solar system, time, space, supernova, expansion