/u/ktool's posts in /r/askscience

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Is the decreased density of matter in Earth's upper atmosphere due to a combination of less matter overall as well as a greater space for it to fill due to the increased distance from center in a spheroidal shape?

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As you move around the unit circle with circumference tau, the sine ratio oscillates 0, 1, 0, -1, 0. When you plot the sine wave, its period is still tau, but since the wave oscillates above & below the x-axis its curve length is longer than tau. What does this extra length correspond to in physics?

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What causes the heavy-chested feeling when you're in an exceptionally good mood?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is the decreased density of matter in Earth's upper atmosphere due to a combination of less matter overall as well as a greater space for it to fill due to the increased distance from center in a spheroidal shape?	1
As you move around the unit circle with circumference tau, the sine ratio oscillates 0, 1, 0, -1, 0. When you plot the sine wave, its period is still tau, but since the wave oscillates above & below the x-axis its curve length is longer than tau. What does this extra length correspond to in physics?	1
What causes the heavy-chested feeling when you're in an exceptionally good mood?	0