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

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If UV radiation is used to disinfect and sterilise things then why isn't everything the sun touches (your skin, the sidewalk etc) sterile?

569 upvotes

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Does the infrared light emitted from the ISS radiators produce measureable thrust?

49 upvotes

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Are there any other elements besides carbon capable of forming the bonds needed for complex life?

8 upvotes

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When a substance is oxidized, does it gain or lose energy?

6 upvotes

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what makes water have such a high heat capacity when compared to other, more complex materials?

6 upvotes

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What is the mechanism behind gas knowing there's a vacuum behind a solid wall?

2 upvotes

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How does Tesla just update their vehicles capacity to 75kwh "temporarily" for the hurricane disaster stricken?

1 upvotes

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What came first, language or the voice in our heads?

1 upvotes

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If protons are anti electrons, then couldnt we use proton-electron annihilation for fabled "antimatter" powered devices?

1 upvotes

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How much Aluminum does it take to make a standard 50m roll of foil?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If UV radiation is used to disinfect and sterilise things then why isn't everything the sun touches (your skin, the sidewalk etc) sterile?	569
Does the infrared light emitted from the ISS radiators produce measureable thrust?	49
Are there any other elements besides carbon capable of forming the bonds needed for complex life?	8
When a substance is oxidized, does it gain or lose energy?	6
what makes water have such a high heat capacity when compared to other, more complex materials?	6
What is the mechanism behind gas knowing there's a vacuum behind a solid wall?	2
How does Tesla just update their vehicles capacity to 75kwh "temporarily" for the hurricane disaster stricken?	1
What came first, language or the voice in our heads?	1
If protons are anti electrons, then couldnt we use proton-electron annihilation for fabled "antimatter" powered devices?	1
How much Aluminum does it take to make a standard 50m roll of foil?	1