Some wit in my first physics class asked the teacher whether perhaps it was that the ball thrown straight up in the air lingered there for a moment because it was building up energy to go back down again.halfwise wrote:It was about this moment when gravity, taken aback as much as anyone else by the goings on, noticed Petty high up in the air and decided it was about time it reasserted itself on matters.
The old physics teacher in me twinkles with delight. I see now that my explanation of the way things worked was dry and unintuitive; small wonder students have difficulty with the stuff. Newton was a cad.
"The earth was rushing past like a river or a sea below him. Trees and water, and green grass, hurried away beneath. A great roar of wild animals rose as they rushed over the Zoological Gardens, mixed with a chattering of monkeys and a screaming of birds; but it died away in a moment behind them. And now there was nothing but the roofs of houses, sweeping along like a great torrent of stones and rocks. Chimney-pots fell, and tiles flew from the roofs..."
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I think it lingers because it's afraid to go back down.
Halfwise, son of Halfwit. Brother of Nitwit, son of Halfwit. Half brother of Figwit.
Then it gets complicated...
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