/r/AskPhysics

Year:

Search a post:

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