observation mirror
51Elitzur-Vaidman bomb-tester — In Physics, the Elitzur Vaidman bomb testing problem is a thought experiment in quantum mechanics, first proposed by Avshalom Elitzur and Lev Vaidman in 1993. An actual bomb tester was constructed and successfully tested by Anton Zeilinger, Paul… …
52Meson — Mesons Mesons of spin 0 form a nonet Composition Composite Quarks and antiquarks Statistics Bosonic …
53Dobsonian telescope — A Dobsonian telescope on display at Stellafane in the early 1980s A Dobsonian telescope is an alt azimuth mounted newtonian telescope design popularized by the amateur astronomer John Dobson starting in the 1960s. Dobson s telescopes featured a… …
54Reliability of Wikipedia — Vandalism of a Wikipedia article. The section on the left is the normal, undamaged version; and on the right is the edited, damaged version. The reliabili …
55South Asian arts — Literary, performing, and visual arts of India, Pakistan, Bangladesh, and Sri Lanka. Myths of the popular gods, Vishnu and Shiva, in the Puranas (ancient tales) and the Mahabharata and Ramayana epics, supply material for representational and… …
56Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
57Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
58Airy disk — Computer generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy pattern …
59Hugh Grant — Infobox actor imagesize= caption=Grant at the 2007 Alfred Dunhill Links Championship in St Andrews, Scotland birthname=Hugh John Mungo Grant birthdate=birth date and age|1960|9|9|mf=y birthplace=Hammersmith, London, England occupation=Actor, Film …
60One Canada Square — A view of One Canada Square, the second tallest building in the United Kingdom. Record height Tallest in the United …
