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

Year:

Only show posts with narrations

If gravity propagates non-instantly, does that mean planets are being pulled to where the sun was a small time ago?

22 upvotes

Mark as read: Add to a list

Is the rate at which an organism’s DNA mutates itself subject to evolutionary pressures?

8 upvotes

Mark as read: Add to a list

If Dark Matter and Dark Energy only interact with gravity, how do we know they’re two distinct things?

1 upvotes

Mark as read: Add to a list

If Dark Matter and Dark Energy are only detectable via gravitational effects, how do we know they’re two different things?

1 upvotes

Mark as read: Add to a list

How does a cell in an embryo “know” which type of tissue it’s supposed to become?

1 upvotes

Mark as read: Add to a list

How does the brain know how long ago a memory took place?

1 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If gravity propagates non-instantly, does that mean planets are being pulled to where the sun was a small time ago?	22
Is the rate at which an organism’s DNA mutates itself subject to evolutionary pressures?	8
If Dark Matter and Dark Energy only interact with gravity, how do we know they’re two distinct things?	1
If Dark Matter and Dark Energy are only detectable via gravitational effects, how do we know they’re two different things?	1
How does a cell in an embryo “know” which type of tissue it’s supposed to become?	1
How does the brain know how long ago a memory took place?	1