/u/JadnidBobson's posts in /r/askscience

Year:

Only show posts with narrations

Why do humans need such a varied diet whereas other animals don't?

1346 upvotes

Mark as read: Add to a list

Sometimes sources of light, e.g. street lights, appear to emit "rays" or "lines" of light in symmetrical patterns, why? (Picture inside)

7 upvotes

Mark as read: Add to a list

How can there be matter (low density plasma) in outer space? Why doesn't gravity pull it towards stars or planets?

5 upvotes

Mark as read: Add to a list

Imagine you had a train travelling at 0,9 c, and inside it a small car travelling at the same speed in the same direction. Wouldn't the car's velocity then be 1,8 c - greater than the speed of light? Why not?

2 upvotes

Mark as read: Add to a list

What causes the weird sensation inside the nose when eating things like mustard, wasabi or horseradish?

2 upvotes

Mark as read: Add to a list

Why do hot metals turn orange?

1 upvotes

Mark as read: Add to a list

Do the contents of a video determine the size of the video file?

1 upvotes

Mark as read: Add to a list

Is it possible to deplete the brain's stock of certain neurotransmitters "naturally", i.e. without using recreational drugs?

1 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why do humans need such a varied diet whereas other animals don't?	1346
Sometimes sources of light, e.g. street lights, appear to emit "rays" or "lines" of light in symmetrical patterns, why? (Picture inside)	7
How can there be matter (low density plasma) in outer space? Why doesn't gravity pull it towards stars or planets?	5
Imagine you had a train travelling at 0,9 c, and inside it a small car travelling at the same speed in the same direction. Wouldn't the car's velocity then be 1,8 c - greater than the speed of light? Why not?	2
What causes the weird sensation inside the nose when eating things like mustard, wasabi or horseradish?	2
Why do hot metals turn orange?	1
Do the contents of a video determine the size of the video file?	1
Is it possible to deplete the brain's stock of certain neurotransmitters "naturally", i.e. without using recreational drugs?	1