While it was using the National Astronomical Observatory of Japan's 45 - meter Nobeyama radio telescope to study an enigmatic gas cloud called CO -0.40-0.22, something unusual caught their eye: an unusually wide range of speeds in the cloud's gas molecules, suggesting that something massive is accelerating them. (sciencemag.org)
Neutrons from cosmic ray collisions have a wide range of speeds, and hydrogen atoms are most efficient at stopping neutrons in their medium speed range, called epithermal neutrons. (sciencedaily.com)
Not only does it have a decent amount of power and a wide range of speeds, but it also has a lot of versatility and extras for a budget option. (geekwrapped.com)