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Question:

How deep down are the reflective cats eyes on motorways in uk?

How deep down are the reflective cats eyes on motorways in uk?

Answer:

thats really funny hes stupid enough to. he doesnt know what it will do to him
Depends how deep you want to go. I bet you don't understand GR very thoroughly (its pretty advanced) - and if you say curved space time is like one of those daft diagrams of bent lines or like a rubber sheet then you really haven't grasped a thing. In 6 minutes I would stcik to what lead to relativity (constanct of speed of light, priciple of equivalence, light being affected by gravity from thought experiments to avoid violation of energy conservation). If I am explaining SR to someone I draw a space time diagram, then show how it would be transformed non relativistically (the axes rotate which changes the speed of light) then relativistically ( the axes converge to keep the speed of light constant) and then point out that this means that simultaneity fails. This is the central plank of SR and it is often not even touched on.

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