/ B . b.bv.vbgvb;.Feynman‚ Richard Philips (1918-1988) Portions of this entry contributed by Leonardo Motta American physicist who was born in New York City on May 11‚ 1918. He grew up in Far Rockaway‚ Queens and when he was about 10‚ he started to buy old radios to use in his "personal laboratory‚" a collection of electric gadgets and components‚ and by the age of 12‚ he was already fixing radios in his neighborhood. Feynman related a number of entertaining and revealing vignettes from
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mysterious phenomenon. This was my motivation to leave Vietnam and Russia to join Erasmus Mundus program Nanoscience & Nanotechnology to learn more about physics‚ quantum physics‚ nanoscience and nanotechnology. My curiosity and love for physics lead me to concentrate mainly on mesoscopic physics‚ quantum coherence transport of electrons‚ quantum dots and graphene. In addition to these theoretical knoledges‚ I also acknowledge the importance of practical skill in using preparation‚ ranging from top-down
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If I tried to simply tell a skeptic‚ "That rock will fall from the cliff because of gravity‚" he won’t believe me because he will simply say‚ "Not necessarily." In fact‚ this can be the skeptic’s answer to just about any attempt to refute his position. It has long been pointed out by opponents of skepticism that such an attitude cannot be taken to its extreme conclusion in the real world in which we operate- even skeptics must live their lives according to rules they must rely upon not to fail
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is then usually realized that the ionization of an element is inevitable. Electrons in an atom exist in orbitals‚ this is due to the fact of the electrons being described by four different quantum numbers‚ this is shown through the principle quantum number which is; the main energy level. The second quantum number describes the type of orbital‚ called an s orbital. The second level
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Problem: For a p-electron‚ orbital angular moment is (A) √2h (B) h (C) √6h (D) 2h Solution: Orbital angular momentum L = √l ( l + 1 )h where h = h/2π ∴ L for p electron = √1 ( 1 + 1 )h = √2h ∴ (A) Problem: For which of the following species‚ Bohr theory doesn’t apply (A) H (B) He+ (C) Li2+ (D) Na+ Solution: Bohr theory is not applicable to multi
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CHEMISTRY 110 GENERAL CHEMISTRY I INFORMATION SHEET Fall 2011 Instructors: Professor Ashok Kakkar Otto Maass Chemistry Building‚ room 313 Tel: (514) 398-6912 Office hours: By appointment‚ e-mail via WebCT to arrange meetings. E-mail: use webCT Professor Scott Bohle Otto Maass Chemistry Building‚ room 233A Tel: (514) 398-7409 Office hours: By appointment‚ e-mail via WebCT to arrange meetings E-mail: use webCT Professor Bryan Sanctuary Otto Maass Chemistry Building‚ room 224 Tel: (514) 398-6930
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of colours in the visible spectrum and the span of visible wavelengths. Question: if light is a .. Answer: max planck proposed that e.m radiation comes in units of defined energy rather than in any arbitrary quantities. Planck called it quantum The Photoelectric Effect Planck’s theories were used to explain a number of observations that had been troubling scientists. Einstein extended Planck’s ideas and suggested that each quanta of light behaves as a tiny particle called
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first theory of physics that tries to explain everything. What does it mean to explain everything? We would know how the universe began and where it is going. Quantum gravity Modern physics has two basic scientific laws: quantum physics and general relativity. These two scientific laws represent radically different fields of study. " Quantum physics studies the very smallest objects in nature‚ while relativity tends to study nature on the scale of planets‚ galaxies‚ and the universe as a whole." (http://www
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absolute zero (0 K or −273.15 °C[1]). Under such conditions‚ a large fraction of the bosons occupy the lowest quantum state‚ at which point quantum effects become apparent on a macroscopic scale. These effects are called macroscopic quantum phenomena. This state of matter was first predicted by Satyendra Nath Bose and Albert Einstein in 1924–25. Bose first sent a paper to Einstein on the quantum statistics of light quanta (now called photons). Einstein was impressed‚ translated the paper himself from
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Dedication: I dedicate this book to my wife‚ Enid‚ who has encouraged me and tolerated my idiosyncrasies over the years. Acknowledgments: I wish to thank my friend‚ Dr. Nikolai Yatsenko‚ for volunteering to spend many hours teaching me aspects of quantum mechanics and general relativity. During these lessons I began the first steps of formulating a conceptually understandable model of the universe. Also Dr. Chris Ray has provided helpful comments on the text. Finally‚ I would like to thank Francis
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