I Does Special Relativity Affect Mass?

The_Baron
Messages
3
Reaction score
0
Is mass relative? does the faster you go change your mass? Because according to the Energy calculations E = ymc^2 at speed and mc^2 and since the speed of light is constant, does that mean that mass changes?

[Thread edited by a Mentor to remove personal speculation]
 
Last edited by a moderator:
Physics news on Phys.org
The_Baron said:
Is mass relative? does the faster you go change your mass? Because according to the Energy calculations E = ymc^2 at speed and mc^2 and since the speed of light is constant, does that mean that mass changes?
No. You are thinking of the LONG deprecated concept of "relativistic mass". You, right now as you read this, are traveling at very close to the speed of light (relative to a particle in the CERN accelerator). Did knowing that make you feel more massive?
 
Reply
  • Like
Likes vanhees71 and Dale

Thread 'I don't see how a black hole's event horizon can be crossed'

OK, so this has bugged me for a while about the equivalence principle and the black hole information paradox. If black holes "evaporate" via Hawking radiation, then they cannot exist forever. So, from my external perspective, watching the person fall in, they slow down, freeze, and redshift to "nothing," but never cross the event horizon. Does the equivalence principle say my perspective is valid? If it does, is it possible that that person really never crossed the event horizon? The...
View full post »

Thread 'Question about Parallel Transport'

In this video I can see a person walking around lines of curvature on a sphere with an arrow strapped to his waist. His task is to keep the arrow pointed in the same direction How does he do this ? Does he use a reference point like the stars? (that only move very slowly) If that is how he keeps the arrow pointing in the same direction, is that equivalent to saying that he orients the arrow wrt the 3d space that the sphere is embedded in? So ,although one refers to intrinsic curvature...
View full post »

Thread 'Synchronizing clocks in an inertial frame if light is anisotropic'

ASSUMPTIONS 1. Two identical clocks A and B in the same inertial frame are stationary relative to each other a fixed distance L apart. Time passes at the same rate for both. 2. Both clocks are able to send/receive light signals and to write/read the send/receive times into signals. 3. The speed of light is anisotropic. METHOD 1. At time t[A1] and time t[B1], clock A sends a light signal to clock B. The clock B time is unknown to A. 2. Clock B receives the signal from A at time t[B2] and...
View full post »

Similar threads

I Charge conservation and special relativity
Replies
9
Views
2K
I Escape velocity near a black hole: Newtonian or Special Relativity?
Replies
17
Views
2K
I How Does Special Relativity Affect Perceptions of Simultaneity?
Replies
32
Views
2K
I Special Theory of Relativity & Conservation of Mass
Replies
4
Views
2K
I SR-time dilation vs GR-time dilation on rotating Earth
2
Replies
79
Views
5K
I A problem with how the speed of light connects to special relativity
Replies
12
Views
2K
B Photon Frequency: How Special Relativity Affects Light
Replies
23
Views
3K
B Does a hot coffee have bigger mass than a cold coffee?
3
Replies
102
Views
6K
I E=mc^2 and acceleration
Replies
26
Views
2K
I How is photon momentum compatible with special relativity?
Replies
19
Views
2K

Hot Threads

Recent Insights

Back
Top