Word: neutrinos
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...best things in the universe come in small packages. Since the revolution in physics early in the century, scientists have thought the neutrino--a sub-atomic particle distinct from protons and neutrons--to be no more than a massless bundle of energy. Recent research suggests, however, that some of these "little neutrons" of the sub-atomic family might actually be very dense particles of matter, capable of exerting a gravitational pull...
...their surprise, the scientists counted fewer than half the electron neutrinos anticipated. Reines speculates that they had changed flavors, or oscillated, turning into muon or tau neutrinos during their short journey. If such a switch had occurred, the neutrinos must have mass (since physics dictates that one kind of particle must have mass to turn into another). Said Reines: "The simple view [of the massless neutrino] does not square with experimental facts...
...dislike the neutrino...
...carriers of mass can be further divided into leptons, which do not feel the "strong" force, and hadrons, which do. There are four leptons: the electron, the muon, the electron neutrino and the muon neutrino. There are hundreds of hadrons. The neutron and proton are both hadrons and so are subject to the paull of the "strong" force...
Denise Thal went on a scoring binge to polish off the 46-14 halftime shellacking. Flitting through the Brandeis defense like a blithe neutrino, she dropped two from the line and rollicked for three driving hoops in the space of two minutes...