00:00The sun produces enough energy every second to power the entire earth for more than 100,000 years.
00:06The human brain has about 86 billion neurons, which is more than 10 times the total human
00:11population. A modern smartphone is over 1 million times more powerful than the computer used by
00:17NASA for the first moon landing. If all the blood vessels in the human body were placed end-to-end,
00:23they would wrap around the earth more than twice. An atom is mostly empty space.
00:28If an atom were the size of a football stadium, the nucleus would be about the size of a pea.
00:34Counting to 1 billion at one number per second would take more than 31 years without stopping.
00:40The oceans contain enough salt to cover all the continents with a layer more than 150 meters thick.
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