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

Year:

Only show posts with narrations

Are the charges of an electron and proton EXACTLY equal and opposite, or just really really close in magnitude?

4 upvotes

Mark as read: Add to a list

Why is the ampere a base unit of SI and not the coulomb?

4 upvotes

Mark as read: Add to a list

Are gravitons and the higgs boson the same thing?

4 upvotes

Mark as read: Add to a list

What is going on with the water in these pictures?

3 upvotes

Mark as read: Add to a list

Is the Mass Effect galaxy map accurate?

3 upvotes

Mark as read: Add to a list

Is it possible to estimate what percent of water molecules on earth have been part of a raindrop at some point? If so, what is that percent?

3 upvotes

Mark as read: Add to a list

How can potential energy be relative?

3 upvotes

Mark as read: Add to a list

The big bang started off as a singularity. Nothing escapes from a singularity. What gives?

3 upvotes

Mark as read: Add to a list

An instantaneous jump in position (teleportation, basically) is not possible. What about instantaneous jumps in velocity, acceleration, and subsequent derivatives of position?

3 upvotes

Mark as read: Add to a list

My understanding is that electrons repel due to exchange of photons and conservation of momentum. If this is the case, how do they attract? Or is my initial understanding just way off?

3 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are the charges of an electron and proton EXACTLY equal and opposite, or just really really close in magnitude?	4
Why is the ampere a base unit of SI and not the coulomb?	4
Are gravitons and the higgs boson the same thing?	4
What is going on with the water in these pictures?	3
Is the Mass Effect galaxy map accurate?	3
Is it possible to estimate what percent of water molecules on earth have been part of a raindrop at some point? If so, what is that percent?	3
How can potential energy be relative?	3
The big bang started off as a singularity. Nothing escapes from a singularity. What gives?	3
An instantaneous jump in position (teleportation, basically) is not possible. What about instantaneous jumps in velocity, acceleration, and subsequent derivatives of position?	3
My understanding is that electrons repel due to exchange of photons and conservation of momentum. If this is the case, how do they attract? Or is my initial understanding just way off?	3