Chalk is a fine-textured form of limestone. It is composed of several tiny fragments of the calcite shells or skeletons of ...

I read a book in the 70s about an accident at a plant that made stable super-heavy elements, so this idea can't be that new. What I would like to know is, is there a practical use for these or is the ...

Munich based physicists have been able to observe the interaction of multiple photons in a single attosecond pulse with electrons in the inner orbital shell of an atom for the first time. To this end ...