In this video, Jonny Nelson introduces an animated explanation of fission and fusion. The nuclei of atoms contain a large amount of energy. Releasing this energy could free the world from having to ...

Speaker one Minus 273 degrees Celsius is the lowest possible temperature. It’s called absolute zero. Any object with a temperature above this will emit and absorb infrared radiation, even the Earth.

Contact-electrification can lead to heterogeneous surface charge distributions called charge mosaics. Experiments and theory show that these arise from electrostatic discharges between the charged ...