/r/askscience

Year:

Only show posts with narrations

Is there a latency period for human vitamin D production upon UVB exposure, or are skin cells synthesizing vitamin D as soon as exposed? Would we get the same amount of vitamin D from 60 ten-second periods of sunlight as from a single 10 minute period of sunlight?

546 upvotes • screwyoushadowban

Mark as read: Add to a list

What do muscle knots actually look like?

545 upvotes • mybuttsmells

Mark as read: Add to a list

Could we selectively breed cats (or dogs) into sentience, the same way the Siberian fox experiment bred for docility?

545 upvotes • rootwinterguard

Mark as read: Add to a list

Soot cracks when exposed to a flashlight, what is going on here?

545 upvotes • raycluster

Mark as read: Add to a list

What happens if a girl takes Viagra?

545 upvotes • armchairzeus

Mark as read: Add to a list

Were there ever multiple oceans?

545 upvotes • Igglyboo

Mark as read: Add to a list

Are organisms that regrow appendages like flatworms and starfish at risk of diseases like cancer?

545 upvotes • superhelical

Mark as read: Add to a list

What form of numeric differentiation is this?

545 upvotes • DrunkenPhysicist

Mark as read: Add to a list

How, exactly, do we fall asleep?

545 upvotes • SluttyButNotSlutty

Mark as read: Add to a list

With such a high r0, why didn't measles just burn itself out?

545 upvotes • badlybarding

Mark as read: Add to a list

Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Is there a latency period for human vitamin D production upon UVB exposure, or are skin cells synthesizing vitamin D as soon as exposed? Would we get the same amount of vitamin D from 60 ten-second periods of sunlight as from a single 10 minute period of sunlight?	546	screwyoushadowban
What do muscle knots actually look like?	545	mybuttsmells
Could we selectively breed cats (or dogs) into sentience, the same way the Siberian fox experiment bred for docility?	545	rootwinterguard
Soot cracks when exposed to a flashlight, what is going on here?	545	raycluster
What happens if a girl takes Viagra?	545	armchairzeus
Were there ever multiple oceans?	545	Igglyboo
Are organisms that regrow appendages like flatworms and starfish at risk of diseases like cancer?	545	superhelical
What form of numeric differentiation is this?	545	DrunkenPhysicist
How, exactly, do we fall asleep?	545	SluttyButNotSlutty
With such a high r0, why didn't measles just burn itself out?	545	badlybarding