burst of neutrons
1Etoile a neutrons — Étoile à neutrons RX J1856.4 3754, une étoile à neutrons isolée proche du Système solaire, dont l émission de surface est vue par le télescope spatial Hubble. Une étoile à neutrons est le nom donné à un astre principalement composé de neutrons… …
2Étoile à neutrons — RX J1856.4 3754, une étoile à neutrons isolée proche du Système solaire, dont l émission de surface est vue par le télescope spatial Hubble. Une étoile à neutrons est le nom donné à un astre principalement composé de neutrons maintenus ensemble… …
3Étoiles à neutrons — Étoile à neutrons RX J1856.4 3754, une étoile à neutrons isolée proche du Système solaire, dont l émission de surface est vue par le télescope spatial Hubble. Une étoile à neutrons est le nom donné à un astre principalement composé de neutrons… …
4Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
5Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
6Manhattan Project — This article is about the atomic bomb project. For other uses, see Manhattan Project (disambiguation). Manhattan District The Manhattan Project created the first nuclear bombs. The Trinity test …
7Neutron bomb — A neutron bomb or enhanced radiation weapon (ERW) or weapon of reinforced radiation is a type of thermonuclear weapon designed specifically to release a large portion of its energy as energetic neutron radiation rather than explosive energy.… …
8Modulated neutron initiator — A modulated neutron initiator is a neutron source capable of producing a burst of neutrons on activation. It is a crucial part of some nuclear weapons, as its role is to kick start the chain reaction at the optimal moment when the configuration… …
9Fat Man — This article is about the World War II nuclear weapon. For other uses, see Fat Man (disambiguation). Fat Man (Atomic Bomb) Mockup of the original weapon …
10Isotopes of plutonium — Plutonium (Pu) has no stable isotopes. A standard atomic mass cannot be given.Decay modesTwenty plutonium radioisotopes have been characterized. The most stable are Pu 244, with a half life of 80.8 million years, Pu 242, with a half life of… …
