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...

Looks at the impact of global warming and to what extent humanity has contributed to this.  The animated video explains the greenhouse effect, and how greenhouse gases can absorb infrared radiation and then re-emit it.   It also looks at how the oceans become more acidic when carbon dioxide is absorbed from the...

This animation describes how gravitational waves were first detected, in 2015, at the Laser Interferometer Gravitational-Wave Observatory (LIGO), 100 years after Einstein predicted them.  Newton’s theory of gravity and Einstein’s theory of General Relativity are briefly described.  Taylor and Hulse showed indirect...

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...