The periodic table is one of the triumphs of science. Even before certain elements had been discovered, this chart could ...

"Even after up to 150 million years, isotopic traces of the oxygen molecules of the Mesozoic atmosphere that the dinosaur ...

An Iranian delegation visited Russian scientific institutes that produce dual-use technologies — components with potential ...

In 1905, Einstein established relativity under the condition of denying the absolute space-time valid in Newtonian mechanics. In those days, the quantum theory was also established by accepting De ...