Free Science Videos and Lectures

To reach other intelligences our technology must reach beyond interplanetary distances it has to go interstellar distances.

The largest radio radar telescope on the planet Earth - Arecibo radio...

This science video contains:
life, stars, carl sagan, milky way, galaxies, intelligence, civilization, radio telescope, extraterrestrial, arecibo, puerto rico, m15, signal, prime numbers

The most famous American astronomer and astrophysicist Carl Sagan explains the Drake equation.

The Drake equation (rarely also called the Green Bank equation or the Sagan equation) is a famous...

This science video contains:
life, planets, stars, carl sagan, drake equation, extraterrestrial intelligence

Sagan was central to the discovery of the high surface temperatures of the planet Venus.

In the early 1960s, no one knew for certain the basic conditions of Venus' surface and Sagan listed the...

This science video contains:
venus, carl sagan, planet, nasa, 1960

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

The usual touch screens usually allow just a single touch interaction. This new technology is designed to be usable by both hands or by multiple persons.

The uses are endless. You can use it for...

This science video contains:
touch screen, touchscreen, multi input, hands, video mixing, presentation, images, pictures, figures, pokemon, map, terrain, graphs