Karl Schwarzschild

Occupation: Physicist & Astronomer
Year born: 1873
Research Areas: Relativity, Black Holes, Quantum Theory, Stars, Comets
"Mathematics, physics, chemistry, astronomy, march in one front."
Occupation: Physicist & Astronomer
Year born: 1873
Research Areas: Relativity, Black Holes, Quantum Theory, Stars, Comets
"Mathematics, physics, chemistry, astronomy, march in one front."
Occupation: Physicist & Author
Year born: 1942
Research Areas: Cosmology, Theoretical Physics
Wedi’i anelu at ddisgyblion 11-14 oed, mae’r gweithgaredd hwn yn gwneud defnydd o algebra sylfaenol a graffiau i atgyfnerthu'r syniadau o effeithiau disgyrchiant a sut mae’r effeithiau yna yn dibynnu ar le ydych chi yng Nghysawd yr Haul.
The Universe started with the Big Bang about 14,000 million years ago (14,000,000,000 years). It started out very, very hot and has been expanding and cooling since then.
For the first tiny fraction of a second, everything was so hot, that we cannot describe what it was like, but we can use our knowledge of physics to give us a good idea of what was happening from as little as 10-43 seconds (that is 0.0000000000000000000000000000000000000000001 seconds!) after the beginning.
"g" is the measurement of gravity on the surface of the Earth.