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If some elements have such a short half-life, why are they still here?

2201 upvotes • DJPBizzle

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AskScience AMA Series: We're scientists and engineers on the InSight lander team who studied the deep interior of Mars. Ask us anything!

2201 upvotes • AskScienceModerator

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I keep hearing over and over that the big bang originated from a point the size of a pea, or a pin head, or some other tiny object. This was repeated again in the first episode of COSMOS. How do we know this?

2200 upvotes • [deleted]

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AskScience AMA Series: Hi! I am J.R. Skok. I am a planetary scientist with the SETI Institute and a Space entrepreneur. I am working with SETI and NASA to develop future missions to search for life on Mars, AMA!

2200 upvotes • AskScienceModerator

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What causes the compulsion to frequently check social media?

2199 upvotes • ___dreadnought

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Do any other animals intentionally mix ingredients for food?

2198 upvotes • SuperC142

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AskScience AMA Series: I'm Dr. Jonathan Blutinger, a postdoctoral researcher in the Creative Machines Lab at Columbia University, developing a "digital chef" that can 3D print and laser cook edible items. Ask me anything about the process!

2198 upvotes • AskScienceModerator

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This may be a dumb question, but when I turn off my lights, where does all the light go?

2197 upvotes • just_saiyan_bro

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Do I sweat when I'm in a really hot shower and just not realize it because I'm already drenched?

2197 upvotes • myownclay

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Why does hot water make more bubbles than cold when I'm washing my hands?

2197 upvotes • KevSaund

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If some elements have such a short half-life, why are they still here?	2201	DJPBizzle
AskScience AMA Series: We're scientists and engineers on the InSight lander team who studied the deep interior of Mars. Ask us anything!	2201	AskScienceModerator
I keep hearing over and over that the big bang originated from a point the size of a pea, or a pin head, or some other tiny object. This was repeated again in the first episode of COSMOS. How do we know this?	2200	[deleted]
AskScience AMA Series: Hi! I am J.R. Skok. I am a planetary scientist with the SETI Institute and a Space entrepreneur. I am working with SETI and NASA to develop future missions to search for life on Mars, AMA!	2200	AskScienceModerator
What causes the compulsion to frequently check social media?	2199	___dreadnought
Do any other animals intentionally mix ingredients for food?	2198	SuperC142
AskScience AMA Series: I'm Dr. Jonathan Blutinger, a postdoctoral researcher in the Creative Machines Lab at Columbia University, developing a "digital chef" that can 3D print and laser cook edible items. Ask me anything about the process!	2198	AskScienceModerator
This may be a dumb question, but when I turn off my lights, where does all the light go?	2197	just_saiyan_bro
Do I sweat when I'm in a really hot shower and just not realize it because I'm already drenched?	2197	myownclay
Why does hot water make more bubbles than cold when I'm washing my hands?	2197	KevSaund