/r/askscience

Year:

Only show posts with narrations

If liquid helium becomes too scarce and expensive, is there another substance that MRI machines can use for cooling?

1611 upvotes • The_Safe_For_Work

Mark as read: Add to a list

Is it possible to use multiple satellites across space to speed up space communication?

1611 upvotes • Lonewolf_drak

Mark as read: Add to a list

How small can an astronomical body (e.g. an asteroid) be before a human could no longer "stand on" it?

1610 upvotes • K-o-R

Mark as read: Add to a list

If a toddler is learning two languages at once, does he understand that they're different languages?

1609 upvotes • bollvirtuoso

Mark as read: Add to a list

When a doctor says to a patient that they have 6 months to live, how do they know?

1609 upvotes • askingquestions4u

Mark as read: Add to a list

Can a chronic infection be annihilated if you strengthen the immune system?

1608 upvotes • The_Godlike_Zeus

Mark as read: Add to a list

AskScience AMA Series: I'm Ainissa Ramirez, a materials scientist (PhD from Stanford) and the author of a new popular science book that examines materials and technologies, from the exotic to the mundane, that shaped the human experience. AMA!

1607 upvotes • AskScienceModerator

Mark as read: Add to a list

I heard having 2 eyes give us depth perception. So, would 3 eyes give something extra or nothing at all ?

1605 upvotes • qu33ksilver

Mark as read: Add to a list

The definition of a second is "the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom." How/why was this (seemingly arbitrary) value chosen?

1605 upvotes • corrrrallll

Mark as read: Add to a list

Why is frame-dragging limited by the speed of light?

1605 upvotes • KingSupernova

Mark as read: Add to a list

Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If liquid helium becomes too scarce and expensive, is there another substance that MRI machines can use for cooling?	1611	The_Safe_For_Work
Is it possible to use multiple satellites across space to speed up space communication?	1611	Lonewolf_drak
How small can an astronomical body (e.g. an asteroid) be before a human could no longer "stand on" it?	1610	K-o-R
If a toddler is learning two languages at once, does he understand that they're different languages?	1609	bollvirtuoso
When a doctor says to a patient that they have 6 months to live, how do they know?	1609	askingquestions4u
Can a chronic infection be annihilated if you strengthen the immune system?	1608	The_Godlike_Zeus
AskScience AMA Series: I'm Ainissa Ramirez, a materials scientist (PhD from Stanford) and the author of a new popular science book that examines materials and technologies, from the exotic to the mundane, that shaped the human experience. AMA!	1607	AskScienceModerator
I heard having 2 eyes give us depth perception. So, would 3 eyes give something extra or nothing at all ?	1605	qu33ksilver
The definition of a second is "the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom." How/why was this (seemingly arbitrary) value chosen?	1605	corrrrallll
Why is frame-dragging limited by the speed of light?	1605	KingSupernova