Were there objections to Einstein's theory of relativity?

[Drakkith]

Would things like LHC, nuclear reactor, and accelerators be the good examples? Just want to check if I'm right.

Absolutely.
From Bandersnatch's link: http://www.edu-observatory.org/physics-faq/Relativity/SR/experiments.html#Tests_of_kinematics

Kinematics is basically the study of how energy and momentum conservation laws constrain and affect physical interactions. The two basic predictions of SR in this regard are that massive objects will have a limiting velocity of c (the speed of light), and that their “relativistic mass” will increase with velocity. This latter property implies that the Newtonian equations for conservation of energy and momentum will be violated by enormous factors for objects with velocities approaching c, and that the corresponding formulas of SR must be used. This has become so obvious in particle experiments that few experiments test the SR equations, and virtually all particle experiments rely upon SR in their analysis. The exceptions are primarily early experiments measuring energy as a function of velocity for electrons and protons.

As the link says, relativistic effects are dealt with so much that they are a fundamental part of particle experiments, especially those involving particle colliders/accelerators.

 

[Mad scientist]

There is still many people who refuse to accept it and still cling to the aether hypothesis. A quick search on YouTube will reveal there are many people who will not accept reality.

 

[blue_leaf77]

By the way can someone give an example of physical statements, theory or principle, etc that describe reality?

 

[Drakkith]

By the way can someone give an example of physical statements, theory or principle, etc that describe reality?

All of science? That's pretty much its entire purpose.

 

[blue_leaf77]

Yeah science was created in order to help human understand reality. But no one can guarantee that what science describes coincides perfectly with the reality itself.

 

[Drakkith]

Yeah science was created in order to help human understand reality. But no one can guarantee that what science describes coincides perfectly with the reality itself.

Of course not.