(adsbygoogle = window.adsbygoogle || []).push({}); Sorry if this is too basic but we've all got to start somewhere......

Just started reading A Brief History of Time, and it has reminded me of a query I have had for years:

E=MCsquared (sorry don't know how to do the little 2 next to the C)

E is Energy, M is Mass and C is the speed of light - Yes? And I can follow that but......

Question: Why does the speed of light have to be squared?

Thanking you

JS

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# Sorry if this is too basic but we've all got to start somewhere

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