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Joao Magueijo

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Joao Magueijo

BY: ALINA 6SW
Photo by chase_elliott

Joao Magueijo is a light scientist from Portugal. He created the varying speed of light theory. That means he said that the speed of light can change.

Joao Magueijo's most famous discovery was the varying speed of light theory.

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Joao Magueijo said that at the beginning of the universe, the speed of light was 3x10 to the power of 30 km per second. Which is the same as 30 with 30 zeros on the end.

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Joao Magueijo has written 2 books on the speed of light. 1 is A Brilliant Darkness. 2 is Faster Than The Speed Of Light.

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