/r/askscience

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Why are almost all of Earth's time units multiples of 6?

9412 upvotes • pancakeghost12

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Can an entomologist please give a further explanation of Asian Giant Hornet situation in Washington state and British Columbia?

9406 upvotes • The_bruce42

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When sign language users are medically confused, have dementia, or have mental illnesses, is sign language communication affected in a similar way speech can be? I’m wondering about things like “word salad” or “clanging”.

9402 upvotes • AngrySnowglober

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Do rainbows contain light frequencies that we cannot see? Are there infrared and radio waves on top of red and ultraviolet and x-rays below violet in rainbow?

9402 upvotes • Jmuuh

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If somebody loses a lot of blood, how do doctors tell so fast wich blood type the patient has and exactly how much blood was lost/needs to be transfused?

9388 upvotes • mastino_

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Did the plague doctor masks actually work?

9376 upvotes • Edenspawn

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Reports are coming out that SARS-CoV-2 has been detected in old sewage samples. How many people need to be infected before we can detect viruses in sewage?

9369 upvotes • almost_useless

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If an astronaut travel in a spaceship near the speed of light for one year. Because of the speed, the time inside the ship has only been one hour. How much cosmic radiation has the astronaut and the ship been bombarded? Is it one year or one hour?

9343 upvotes • Sugartop1

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Why does removing a battery and replacing the same battery (in a wireless mouse for example) work?

9336 upvotes • J011Y1ND1AN

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Does a diamond melt in lava?

9320 upvotes • actually_crazy_irl

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why are almost all of Earth's time units multiples of 6?	9412	pancakeghost12
Can an entomologist please give a further explanation of Asian Giant Hornet situation in Washington state and British Columbia?	9406	The_bruce42
When sign language users are medically confused, have dementia, or have mental illnesses, is sign language communication affected in a similar way speech can be? I’m wondering about things like “word salad” or “clanging”.	9402	AngrySnowglober
Do rainbows contain light frequencies that we cannot see? Are there infrared and radio waves on top of red and ultraviolet and x-rays below violet in rainbow?	9402	Jmuuh
If somebody loses a lot of blood, how do doctors tell so fast wich blood type the patient has and exactly how much blood was lost/needs to be transfused?	9388	mastino_
Did the plague doctor masks actually work?	9376	Edenspawn
Reports are coming out that SARS-CoV-2 has been detected in old sewage samples. How many people need to be infected before we can detect viruses in sewage?	9369	almost_useless
If an astronaut travel in a spaceship near the speed of light for one year. Because of the speed, the time inside the ship has only been one hour. How much cosmic radiation has the astronaut and the ship been bombarded? Is it one year or one hour?	9343	Sugartop1
Why does removing a battery and replacing the same battery (in a wireless mouse for example) work?	9336	J011Y1ND1AN
Does a diamond melt in lava?	9320	actually_crazy_irl