Although it makes up everything we see and touch around us, ordinary matter only accounts for about 15 percent of the mass of the universe. The other 85 percent is believed to be dark matter, a ...

A free neutron outside a nucleus is not stable. It undergoes beta decay at a probability. Over time, the number of free neutrons decreases exponentially at a time constant, which is called the neutron ...

R. BERRY 1 has recently directed attention to the use of helium in place of argon in a conventional argon detector. All the rare gases should behave in the same manner as argon, that is, collision of ...

The Department of Homeland Security has a huge demand for neutron detectors. So much so that there is now a shortage of helium 3, and jacked up the price.<BR><BR>That got reminded me of the talk of ...

A daunting list of key industries the world over is now wondering where their future supplies of helium will come from. What battery metals are to gigafactories, helium is to everything from ...