Scientists have known for a long time that atoms are made of smaller objects such as(a) protons and electrons-called particles. A collider is a device that causes two particle beams traveling in opposite directions at very high speeds to smash into each other. These(b) collisions then produce other particles, some unexpected or never seen before, which helps physicists gain new insight into the structure of the material world. The Large Hadron Collider, which is discussed in the reading passage, is the largest collider ever built.
By examining the results from experiments in colliders, physicists have learned that protons are composed of even smaller particles: a blue(c) quark, a red quark, and a green quark, all connected by(d) gluons,(Quarks aren't actually colored-that is just the naming system that physicists use) In illustration, two beams protons are smashing into each other particles.The resuting high-energy colision produces particles .To date,57 types of particles have been detected
Scientists have known for a long time that atoms are made of smaller objects such as(a) protons and electrons-called particles. A collider is a device that causes two particle beams traveling in opposite directions at very high speeds to smash into each other. These(b) collisions then produce other particles, some unexpected or never seen before, which helps physicists gain new insight into the structure of the material world. The Large Hadron Collider, which is discussed in the reading passage, is the largest collider ever built. By examining the results from experiments in colliders, physicists have learned that protons are composed of even smaller particles: a blue(c) quark, a red quark, and a green quark, all connected by(d) gluons,(Quarks aren't actually colored-that is just the naming system that physicists use) In illustration, two beams protons are smashing into each other particles.The resuting high-energy colision produces particles .To date,57 types of particles have been detected
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