Gravity

Create An Expanding Universe

You have likely heard about the Universe expanding. Or that redshift can tell us about the movements of galaxies. Both are difficult ideas to imagine and understand.

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Cartoon of a person blowing up a balloon. The balloon is covered with galaxies.


The 'Space Weight' Calculator

Ever wondered how heavy or light you would feel on another planet in our Solar System?

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Cartoon of planets on a weighing balance in space. Jupiter is on the left side, weighing the balance is down. Earth, Mars, and Mercury are piled on top of each other on the other end of the balance.


Why Does the Earth Have Tides?

The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?

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Still image from the tides simulator showing the Moon in orbit around the Earth


Karl Schwarzschild

Karl Schwarzchild

Occupation: Physicist & Astronomer

Year born: 1873

Research Areas: Relativity, Black Holes, Quantum Theory, Stars, Comets

 

"Mathematics, physics, chemistry, astronomy, march in one front."

Pwys ar Blanedau

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.

Orbital Demonstration

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