The Best and Worst Prediction in Science
The best and worst predictions in science are both based on the same underlying physics Check out the Great Courses Plus: http://ow.ly/cePe303oKDM Support Veritasium on Patreon: http://bit.ly/VePat...
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How much energy is there in empty space ?We believe there is 10 to the minus 8th ergs in every cubic centimeter of empty spaceHow much is an "erg" ?It's a very small amount, you know if a... If a mosquito flaps its wings, or a fly I guessflaps its wings, it's about 1 ergs worth of energy.So an erg is not very muchUhh, we're talking about a hundred millionth of an erg in every cubic centimeter of spaceNow, it might seem strange that completely empty space contains energy, butthere are 2 good reasons why scientists think this is the case.One is because the expansion of the universe is speeding upand that's thought to be caused by dark energy,which fills all space and makes gravity repulsive.We always think that gra...
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How much energy is there in empty space ?We believe there is 10 to the minus 8th ergs in every cubic centimeter of empty spaceHow much is an "erg" ?It's a very small amount, you know if a... If a mosquito flaps its wings, or a fly I guessflaps its wings, it's about 1 ergs worth of energy.So an erg is not very muchUhh, we're talking about a hundred millionth of an erg in every cubic centimeter of spaceNow, it might seem strange that completely empty space contains energy, butthere are 2 good reasons why scientists think this is the case.One is because the expansion of the universe is speeding upand that's thought to be caused by dark energy,which fills all space and makes gravity repulsive.We always think that gra...
