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...data from the collisions corroborates the Standard Model theory which states that all matter consists of 12 basic particles: six leptons and six quarks. Leptons are a family of light particles the best known of which is the electron...
...will also justify the confidence physicists have placed in the so-called Standard Model, a powerful theoretical edifice that has reduced a once bewildering array of subatomic particles to just a few fundamental constituents. These include three pairs of light particles known as leptons, of which the negatively charged electron and chargeless neutrino are the most familiar, and three pairs of heavier particles known by the whimsical name of quarks. "Up" and "down" quarks combine to create protons and neutrons, the components of everyday matter, while "charm" and "strange" quarks conspire to make more exotic particles, the sort produced...
...findings lend credence to the Standard Model theory, which posits that all matter in the universe is composed of 12 fundamental particles: a set of six leptons, or light particles which include the electron, and six quarks...
...ghost" images by varying the displayed image on the screen. While they were useful five or six years ago, they are no longer needed on today's computers. Modern monitors are coated with a layer of specially processed phosphorus that resists burning, even when hit by the same electron beam repeatedly for a long period of time...
...back her theory, Profet relies on electron-microscopy studies that show bacteria attached to the heads and tails of wriggling sperm. She also cites the existence of spiral-shaped arteries in the uterus. These specialized blood vessels constrict and dilate in a sequence timed to induce menstruation. And, she claims, the blood that washes over the uterine walls differs from blood that circulates throughout the rest of the body. Menstrual blood lacks ingredients that cause clotting and is rich in special immune cells called macrophages. Even so, says Debrovner, "there is no reason to believe that blood, no matter what...