Can we create mass from energy and is it possible to make anti nuclear reactor.???
Einstein's equation:
According to Einstein's famous equation , the energy of a physical system is numerically equal to the product of its mass and the speed of light squared. It is customary to refer to this result as "the equivalence of mass and energy," or simply "mass-energy equivalence," because one can choose units in which , and hence .
In nuclear reactors we create energy from mass, but on accelerators, like LHC, physics create mass from energy. For example, if 2 protons with energies 8 TeV collide we observe about 1000 particles. So, yes, we can create mass from energy. In this definition we can call accelerator "anti-nuclear reactor".