Objects at the Speed of Light question

Shades
Messages
1
Reaction score
0
Let me begin by saying that I have never taken any type of physics classes what-so-ever. As a matter of fact I only have a high school education, so if this is a stupid question please excuse my ignorance. My question is this:

If I understand properly as an object gets closer to the SoL its molecules get more excited and begin to expand to the point of infinity, and that somehow slows the object or at least keeps it from gaining the SoL. If that is the case what would happen if you could force an object to reach absolute zero in temperature while it approached the speed of light?
 
Physics news on Phys.org
Shades said:
If I understand properly as an object gets closer to the SoL its molecules get more excited and begin to expand to the point of infinity, and that somehow slows the object or at least keeps it from gaining the SoL.
Welcome to PF.
What you read isn't correct, special relativity says that the mass of an object increases exponentially as it approaches light speed. This means that for any object with mass it would take an infinite amount of energy to accelerate it to light speed
 

Thread 'Describing the Big Bang'

I started reading a National Geographic article related to the Big Bang. It starts these statements: Gazing up at the stars at night, it’s easy to imagine that space goes on forever. But cosmologists know that the universe actually has limits. First, their best models indicate that space and time had a beginning, a subatomic point called a singularity. This point of intense heat and density rapidly ballooned outward. My first reaction was that this is a layman's approximation to...
View full post »
Thread 'Dirac's integral for the energy-momentum of the gravitational field'

Thread 'Dirac's integral for the energy-momentum of the gravitational field'

See Dirac's brief treatment of the energy-momentum pseudo-tensor in the attached picture. Dirac is presumably integrating eq. (31.2) over the 4D "hypercylinder" defined by ##T_1 \le x^0 \le T_2## and ##\mathbf{|x|} \le R##, where ##R## is sufficiently large to include all the matter-energy fields in the system. Then \begin{align} 0 &= \int_V \left[ ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g}\, \right]_{,\nu} d^4 x = \int_{\partial V} ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g} \, dS_\nu \nonumber\\ &= \left(...
View full post »

Thread 'A sufficient condition for integrability of equation ##\nabla g=0##'

In Philippe G. Ciarlet's book 'An introduction to differential geometry', He gives the integrability conditions of the differential equations like this: $$ \partial_{i} F_{lj}=L^p_{ij} F_{lp},\,\,\,F_{ij}(x_0)=F^0_{ij}. $$ The integrability conditions for the existence of a global solution ##F_{lj}## is: $$ R^i_{jkl}\equiv\partial_k L^i_{jl}-\partial_l L^i_{jk}+L^h_{jl} L^i_{hk}-L^h_{jk} L^i_{hl}=0 $$ Then from the equation: $$\nabla_b e_a= \Gamma^c_{ab} e_c$$ Using cartesian basis ## e_I...
View full post »

Similar threads

I A question about the speed of light and electromagnetism
2
Replies
51
Views
4K
I Do objects gain mass while approaching light speed?
Replies
25
Views
3K
B Let me ask a thing about the Speed of Light
Replies
6
Views
1K
B Can an Object Exceed the Speed of Light?
Replies
12
Views
2K
I Is the concept of a one-way speed of light meaningful and measurable?
Replies
25
Views
4K
B Why does it require an infinite amount of energy to reach the speed of light?
3
Replies
130
Views
13K
B Thought Experiment : Try and get Alice to "0%" the Speed of light
Replies
15
Views
2K
I Why Can't Objects Travel Faster Than Light?
Replies
18
Views
2K
B Speed of light and this Accelerating Rocket scenario
Replies
45
Views
5K
I What if particles are moving near light speed and one slows?
Replies
9
Views
1K

Hot Threads

Recent Insights

Back
Top