Free Science Videos and Lectures

On one of the Moon missions, NASA astronauts decided to prove Galileo Galilei right.

He reasoned that if there was no atmosphere, no dragging force then two objects of different mass falling from...

This science video contains:
ground, force, nasa, moon, galileo galilei, astronaut, atmosphere, gravity, hammer, feather

A new type of automatic door is presented at japan tech fair.

The idea is that the door is made out of many pieces where has a motion detecor and as you approach them they open just the parts of...

This science video contains:
japan, door, motion detectors, box, heat, new idea

When nuclear fuel is sent from powerstations to reprocessing, a simple procedure is used which now has been carried out safely more than 14'000 times.

The fuel rods are first cooled for at least...

This science video contains:
power station, nuclear flask, train, nuclear fuel, fuel rods, steel skip, bolts, standards, iaea, impact test

Nitrogen triiodide, also called nitrogen iodide, is the chemical compound with the formula NI3.

It is a sensitive contact explosive: small quantities explode with a gunpowder-like snap when...

This science video contains:
explosion, ni3, nitrogen triodide, iodide, vapor

Since sodium reacts slower than other alkali metals, the reaction is so intense. It just burns for a while.

This video was done by University of Oxford.

This science video contains:
burning, chlorine, reaction, fire, alkali, sodium