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Posts Tagged ‘Earth’:
2025-02-21 Dr. Tyson On The Speck Called Earth
“There’s this speck called Earth, that orbits an average star…” “There are risks, but there are great rewards.” “We have energy problems down here (on Earth); the universe has an unlimited supply of energy.” Neil deGrasse Tyson tells about an asteroid out there that has more gold than all the gold ever mined on Earth,
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2021-01-21 How The Sun Gives The Earth And Everything On It Life
Every second, by thermonuclear fusion, the Sun converts 564 million tons of hydrogen to 560 million tons of helium. Where did 4 million tons go? The 4 million tons that are missing are converted into energy – photons, including sunlight. This energy amounts to 380 billion Megawatts, or 380 million Gigawatts, or 380,000 Terawatts, or
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