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

Year:

What caused this ring of flat land circling the end of the Appalachian range?

365 upvotes

Mark as read: Add to a list

A free neutron has a half-life of about ten minutes. Suppose we were to somehow get a kilogram or so of free neutrons together before they decayed. What sort of physical properties would this mass have?

223 upvotes

Mark as read: Add to a list

What explains the optical distortions in Jacques-Henri Lartigue's famous 1913 "Car Trip" photo?

146 upvotes

Mark as read: Add to a list

L-glucose costs half again as much per pound as gold but the molecule is a mirror image of glucose, table sugar. How is L-Glucose synthesized and why is this process so expensive?

119 upvotes

Mark as read: Add to a list

Why is the speed of light slower when passing through matter than in a vacuum?

14 upvotes

Mark as read: Add to a list

If an object falls into a black hole, a distant observer will see it get closer and closer to the event horizon but never cross over. That being the case, how do black holes actually come to exist?

9 upvotes

Mark as read: Add to a list

Suppose you have a spaceship a few miles long. At either end of it, there are two men talking to each other on the telephone. If the ship enters a black hole, will their conversation be interrupted as the ship crosses the event horizon?

6 upvotes

Mark as read: Add to a list

How did freshwater fish evolve? How closely related are they to saltwater fish?

5 upvotes

Mark as read: Add to a list

What happens inside a landfill?

2 upvotes

Mark as read: Add to a list

When a doctor sticks that instrument in your ear and looks into it, what exactly is he looking for?

2 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What caused this ring of flat land circling the end of the Appalachian range?	365
A free neutron has a half-life of about ten minutes. Suppose we were to somehow get a kilogram or so of free neutrons together before they decayed. What sort of physical properties would this mass have?	223
What explains the optical distortions in Jacques-Henri Lartigue's famous 1913 "Car Trip" photo?	146
L-glucose costs half again as much per pound as gold but the molecule is a mirror image of glucose, table sugar. How is L-Glucose synthesized and why is this process so expensive?	119
Why is the speed of light slower when passing through matter than in a vacuum?	14
If an object falls into a black hole, a distant observer will see it get closer and closer to the event horizon but never cross over. That being the case, how do black holes actually come to exist?	9
Suppose you have a spaceship a few miles long. At either end of it, there are two men talking to each other on the telephone. If the ship enters a black hole, will their conversation be interrupted as the ship crosses the event horizon?	6
How did freshwater fish evolve? How closely related are they to saltwater fish?	5
What happens inside a landfill?	2
When a doctor sticks that instrument in your ear and looks into it, what exactly is he looking for?	2