/u/Spectre1-4's posts in /r/askscience

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Is there a relation between the spherical shape of bubbles and objects such as planets, stars, etc. that have reached Hydrostatic Equilibrium?

4420 upvotes

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How effective are surgical masks at reducing the chance of infection for the user? How effective are they against spreading germs that can cause infections if the user is infected?

9 upvotes

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How do fires and light bulbs emit photons?

2 upvotes

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Why has the radiation made Chernobyl uninhabitable and, in some areas, dangerous possibly for centuries whereas the sites of the Atomic Bombings in Japan from WW2 are livable? Which radioactive elements pose a threat and maintain longevity in a Nuclear Meltdown/Detonation situation?

1 upvotes

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Why do the sites of nuclear detonations remain relatively less radioactive than nuclear meltdowns in a place like Chernobyl/Pripyat? What affects the longevity of radioactive particles?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is there a relation between the spherical shape of bubbles and objects such as planets, stars, etc. that have reached Hydrostatic Equilibrium?	4420
How effective are surgical masks at reducing the chance of infection for the user? How effective are they against spreading germs that can cause infections if the user is infected?	9
How do fires and light bulbs emit photons?	2
Why has the radiation made Chernobyl uninhabitable and, in some areas, dangerous possibly for centuries whereas the sites of the Atomic Bombings in Japan from WW2 are livable? Which radioactive elements pose a threat and maintain longevity in a Nuclear Meltdown/Detonation situation?	1
Why do the sites of nuclear detonations remain relatively less radioactive than nuclear meltdowns in a place like Chernobyl/Pripyat? What affects the longevity of radioactive particles?	1