Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi … Wikipedia
Criticism of the Space Shuttle program — stems from claims that NASA s Shuttle program has failed to achieve its promised cost and utility goals, as well as design, cost, management, and safety issues.[1] More specifically, it has failed in the goal of reducing the cost of space access … Wikipedia
Friedman , Jerome Isaac — (1930–) American physicist Chicago born Friedman was educated at the university in his native city and gained his PhD there in 1956. After spending three years in California at Stanford, Friedman moved to the Massachusetts Institute of Technology … Scientists
Hawking , Stephen William — (1942–) British theoretical physicist and cosmologist Hawking, who was born in Oxford, graduated from the university there and obtained his PhD from Cambridge University. After holding various Cambridge posts, he became professor of gravitational … Scientists
Physique — Pour les articles homonymes, voir Physique (homonymie). La physique est une science exacte de la nature. Elle correspond à l étude du monde extérieur et des lois de sa variation et de son évolution dans l espace et dans le temps. La modélisation… … Wikipédia en Français
Introduction to gauge theory — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Gauge theory. Quantum field theory … Wikipedia
Maxwell's demon — In the philosophy of thermal and statistical physics, Maxwell s demon is a thought experiment created by the Scottish physicist James Clerk Maxwell to show that the Second Law of Thermodynamics has only a statistical certainty. [1] It… … Wikipedia
Renormalization — Quantum field theory (Feynman diagram) … Wikipedia
Principe de moindre action — Joseph Louis Lagrange est le premier à définir mathématiquement le principe de moindre action. Le principe de moindre action est l hypothèse physique selon laquelle la dynamique d une quantité physique (la position, la vitesse et l accélération d … Wikipédia en Français
Quark — Saltar a navegación, búsqueda Para el alimento, véase queso quark. Quark … Wikipedia Español
