Free Science Videos and Lectures

Here is a demo of transparent cement. It's almost as tough as the usual one but it also lets through light.

It could be used for designing modern buildings or used in facilities which need some of...

This science video contains:
cement, transparent, demo

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

First the DNA Wrapping is animated.
The wrapping allows 6 feet of the long DNA molecule to be densely packed into the tiny nucleus of every cell. The process starts when DNA is wrapped around...

This science video contains:
molecules, dna, dna wrapping, dna replication, protein, histone, nucleus, nuclei zone, chromatin, chromosome, cell, double helix

In this experiment we are going to react aluminium with liquid bromine to make aluminum-bromide.

First a layer of bromine is poured into the bottom of a beaker. Then some aluminium powder is...

This science video contains:
liquid, reaction, aluminum, exothermic, aluminium, bromine, bromide, powder, beaker, fume, coating

The best physics lecturer Walter Lewin makes another wonderful physics demonstration after having read a lecture on batteries.

The battery he creates has a huge potential difference - 10 to 20...

This science video contains:
experiment, current, walter lewin, physics, demonstration, battery, emf, polarization, hydrogen, potential, sparks