/r/askscience

Year:

Only show posts with narrations

Why can gravitational lensing result in both Einstein Crosses and Einstein Rings despite gravity being a symmetrical force?

1368 upvotes • PorchPhysics

Mark as read: Add to a list

How do I use a fair 6-sided die to generate a random number from 1 to 100, with each outcome occurring with the same probability?

1368 upvotes • Lord_Zip

Mark as read: Add to a list

Does our body absorb all the calories that is mentioned on a food product?

1368 upvotes • foinf

Mark as read: Add to a list

Is there something about drinking cold water that is physiologically more hydrating as opposed to drinking lukewarm or hot water?

1366 upvotes • MiniCoop475

Mark as read: Add to a list

Is long exposure necessary in taking pictures of "deep space" and if so, how come?

1366 upvotes • TheSovietColossus

Mark as read: Add to a list

Why not use hydrogen and deuterium in fusion reaction rather than tritium and deuterium?

1366 upvotes • Curious_user4445

Mark as read: Add to a list

Cars, solariums, and greenhouses can get really hot because they trap heat coming in through the glass. Why can't the heat leave just as easily? Why doesn't it balance out?

1365 upvotes • HerrProfessorDoctor

Mark as read: Add to a list

What are more accepted hypotheses that similarly explain the aspects of hominid evolution that the "pseudoscientific" aquatic ape theory does?

1365 upvotes • KEVLAR60442

Mark as read: Add to a list

Will a water balloon with an air bubble break more or less easily than an "airless" water balloon?

1364 upvotes • NecroJoe

Mark as read: Add to a list

Are there studies on the perception of 'unphysical' colors?

1364 upvotes • giantsqueed

Mark as read: Add to a list

Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why can gravitational lensing result in both Einstein Crosses and Einstein Rings despite gravity being a symmetrical force?	1368	PorchPhysics
How do I use a fair 6-sided die to generate a random number from 1 to 100, with each outcome occurring with the same probability?	1368	Lord_Zip
Does our body absorb all the calories that is mentioned on a food product?	1368	foinf
Is there something about drinking cold water that is physiologically more hydrating as opposed to drinking lukewarm or hot water?	1366	MiniCoop475
Is long exposure necessary in taking pictures of "deep space" and if so, how come?	1366	TheSovietColossus
Why not use hydrogen and deuterium in fusion reaction rather than tritium and deuterium?	1366	Curious_user4445
Cars, solariums, and greenhouses can get really hot because they trap heat coming in through the glass. Why can't the heat leave just as easily? Why doesn't it balance out?	1365	HerrProfessorDoctor
What are more accepted hypotheses that similarly explain the aspects of hominid evolution that the "pseudoscientific" aquatic ape theory does?	1365	KEVLAR60442
Will a water balloon with an air bubble break more or less easily than an "airless" water balloon?	1364	NecroJoe
Are there studies on the perception of 'unphysical' colors?	1364	giantsqueed