This video demonstrates how a plasma can be made from heating a grape in a microwave. When gases from the grape absorb microwave energy electrons are removed. The free-moving electrons and positively charged gas molecules form the plasma.  The experiment shows how plasma produces visible light. However, the...

This video begins by showing how reducing the pressure above water reduces its boiling point (it boils at RT).  This is because the water molecules require less energy to escape into the atmosphere above it. It also shows that as the most energetic molecules boil, the liquid is left with less energetic molecules...

”When you tell people you make stars for a living, their heads turn and their mouths open.” The video features Dr Kim Cave-Ayland who is a control engineer at Culham Centre for Fusion Energy (CCFE). 

Guidance and navigation engineer, Richard Lancaster, explains how the ‘Mars Yard’, at Airbus Defence and Space, Stevenage, allows engineers to test out the capabilities of the ExoMars rover.  He talks about the need to transmit all commands and receive data through a spacecraft orbiting Mars.  Spacecraft engineer,...

This animated video describes how Einstein’s field equations led to the cosmological constant, which was later shown to be incorrect.  However, Friedmann and Lemaitre found solutions to Einstein’s equations, if the universe was still expanding.  Hubble found evidence from the red-shift of galaxies that the universe...

This lecture from the Lindau Nobel Laureate Meetings outlines the development of the field of quantum mechanics. The lecture describes the work of Planck, Einstein and Bohr and includes the idea of wave-particle duality, the photoelectric effect to Bohr's model of atomic structure. The lecture's emphasis is on the...