/r/AskPhysics

Year:

Only show posts with narrations

Do we have an idea of what the universe actually looks like if the information we gather from earth is always thousands, millions or even billions years old?

3 upvotes • Ozzynick2018

Mark as read: Add to a list

how does the twin paradox resolve in a closed universe?

3 upvotes • sodomyxxx

Mark as read: Add to a list

When I was a kid riding around town I'm the back of the car I imagined I had a laser that could instantly cut anything I pointed it at in half. Trees, buildings, mountains, they had all better watch out because my laser was coming. What would it take to build my imaginary laser?

3 upvotes • g0fredd0

Mark as read: Add to a list

How do i perform lorentz tensor product decompositions?

3 upvotes • Bradas128

Mark as read: Add to a list

Relativity and observed temperatures

3 upvotes • M374LMAN

Mark as read: Add to a list

Does it require energy to support an electric current?

3 upvotes • BRUHmsstrahlung

Mark as read: Add to a list

What's y'all's favorite visualizations of SU(2) and SU(3)?

3 upvotes • phys_chem_ceramics

Mark as read: Add to a list

Lorentz factor

3 upvotes • Immaturezebra

Mark as read: Add to a list

(Optics) Since when is lens diameter = focal length?

3 upvotes • mysteryofthefieryeye

Mark as read: Add to a list

What starting materials could be used in a nuclear reactor

3 upvotes • donaldhobson

Mark as read: Add to a list

Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Do we have an idea of what the universe actually looks like if the information we gather from earth is always thousands, millions or even billions years old?	3	Ozzynick2018
how does the twin paradox resolve in a closed universe?	3	sodomyxxx
When I was a kid riding around town I'm the back of the car I imagined I had a laser that could instantly cut anything I pointed it at in half. Trees, buildings, mountains, they had all better watch out because my laser was coming. What would it take to build my imaginary laser?	3	g0fredd0
How do i perform lorentz tensor product decompositions?	3	Bradas128
Relativity and observed temperatures	3	M374LMAN
Does it require energy to support an electric current?	3	BRUHmsstrahlung
What's y'all's favorite visualizations of SU(2) and SU(3)?	3	phys_chem_ceramics
Lorentz factor	3	Immaturezebra
(Optics) Since when is lens diameter = focal length?	3	mysteryofthefieryeye
What starting materials could be used in a nuclear reactor	3	donaldhobson