Quotes About Neutron

To achieve this density of a neutron star at home, just cram a herd of 50 million elephants into the volume of a thimble.

I have been reading about the Neutron Bomb. I want to be like that, radiant and deadly, a ghost of an impact, to pass through walls, to kill everyone, in flight among the empty houses, punching through molecules like a knife through a paper bag.

The discovery of slow-neutron radioactivity meant that Fermi's group had to work its way through the elements again looking for different and enhanced half-lives—which is to say, different isotopes and decay products.

On February 27, 1932, in a letter to the British journal Nature, physicist James Chadwick of the Cavendish Laboratory at Cambridge University, Ernest Rutherford's laboratory, announced the possible existence of a neutron.

They discussed the long, thorough theoretical paper by Niels Bohr and John Wheeler, "The mechanism of nuclear fission," that had been published in the September Physical Review and especially its conclusion, which Bohr and Wheeler had elaborated from Bohr's Sunday-morning graph work, that U235 was probably the isotope of uranium responsible for slow-neutron fission.1205

More than any other development, Chadwick's neutron made practical the detailed examination of the nucleus.

Fermi allowed himself a grin. He would tell the technical council the next day that the pile achieved a k of 1.0006.1700 Its neutron intensity was then doubling every two minutes. Left uncontrolled for an hour and a half, that rate of increase would have carried it to a million kilowatts.

Busloads of visitors from Los Alamos and beyond had begun arriving at Compañia Hill, the viewing site twenty miles northwest of Zero, at 0200. Ernest Lawrence was there, Hans Bethe, Teller, Serber, Edwin McMillan, James Chadwick come to see what his neutron was capable of and a crowd of other men, including Trinity staff no longer needed down on the plain.

I remember reading a 'Scientific American' article about the use of new physical techniques - including neutron scattering - as a method for unravelling the structure of the ribosome. I was fascinated.

For all his silences, the man was about as self-effacing as a neutron star; light itself seemed to bend around him.

English fondness for France is normally a sort of neutron love: take away the people and leave the buildings standing.

He had already decided that X rays, sonic probes, neutron beams, and all other nondestructive means of investigation would be brought into play before he called up the heavy artillery of the laser. It was the mark of a barbarian to destroy something one could not understand; but perhaps men were barbarians, beside the creatures who had made this thing.

These stars marked the moments of the universe. There were aging orange embers, blue dwarfs, twin yellow giants. There were collapsing neutron stars, and angry supernovae that hissed into the icy emptiness. There were borning stars, breathing stars, pulsing stars, and dying stars. There was the Death Star.

The neutron is a bit of a drama queen.)

A proton or neutron is made up of three quarks, one of each color. A proton contains two up quarks and one down quark; a neutron contains two down and one up.

Things changed with the discovery of neutron stars and black holes - objects with gravitational fields so intense that dramatic space and time-warping effects occur.

The research included neutron resonance spectroscopy, the angular distribution of pion elastic and inelastic scattering on nuclei with optical model fitting.

an atom with an abnormal number of neutrons.)

The core of a neutron star is so dense that a single spoonful of matter from it would weigh 200 billion pounds.

Physicists today agree that Oppenheimer's most stunning and original work was done in the late 1930s on neutron stars—a phenomenon astronomers would not actually be able to observe until 1967.

The fact that atoms are composed of three kinds of elementary particles—protons, neutrons and electrons—is a comparatively recent finding. The neutron was not discovered until 1932. Modern physics and chemistry have reduced the complexity of the sensible world to an astonishing simplicity: three units put together in various patterns make, essentially, everything.

3He becomes a superfluid below 10?3 K, when its fermionic atoms pair up into bosons and condense. Similar condensation of paired fermions also occurs in neutron stars at about 106 K.

The missiles would be packed full of fissionable material, and fission scared her nearly as much as antimatter. It was the dirty, nasty form of nuclear energy. Shut down a fusion reactor, and the only radioactive materials left were those that had been made radioactive by neutron bombardment. Shut down a fission reactor, and you had a deadly, possibly explosive pile of unstable elements with a half-life that meant they would stay hazardous for thousands of years.

But another possibility is that a neutron star's center contains exotic particles called kaons. This would lower the critical mass compared