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Friday, December 9, 2011 The large scale cosmological mass distribution in the simulation volume of the MassiveBlack. The projected gas density over the whole volume ('unwrapped' into 2D) is shown in the large scale (background) image. The two images on top show two zoom-in of increasing factor of 10, of the regions where the most massive black hole - the first quasars - is formed. The black hole is at the center of the image and is being fed by cold gas streams.
by Attila Grandpierre Attila Grandpierre, Ph.D. Konkoly Observatory of the Hungarian Academy of Sciences H-1525 Budapest P.
by Gerard 't Hooft This is a web site for young students - and anyone else - who are (like me) thrilled by the challenges posed by real science, and who are - like me - determined to use their brains to discover new things about the physical world that we are living in.
Physics problems now exist for the following topics:
Super-Kamiokande Detector in Japan 36°20'24"N, 137°19'48"E .. A typical neutrino event at Super K Super-Kamiokande Super-Kamiokande, or Super-K for short, is a neutrino observatory in Japan.
Michael Fowler - University of Virginia Physics Link to Ukranian Version Check out our flashlets ! These are a few applets I use to teach classes.
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This site provides ranking tasks for teaching introductory astronomy. Pencil-and-paper versions as well as computer-based versions are available grouped by topic. New materials will be added as the computer-based versions are completed. It is anticipated that the pencil-and-paper versions will be photocopied for students and either used in the classroom or assigned as homework. The computer-based versions are intended as formative assessment tools to be used by students outside of class and have considerable utility in distance education courses.
From the idea that our universe is one among many, to the revelation that mathematician Pythagoras didn't actually invent the Pythagorean theorem, here are eight shocking things we learned from reading physicist Stephen Hawking's new book, "The Grand Design," written with fellow physicist Leonard Mlodinow of Caltech.
Videos Richard Feynman - No Ordinary Genius (full version, 95 minutes) Feynman's 1984 lecture on Tiny Machines (79 minutes) On the double split paradox: particle or wave?
An international team of physicists has proposed a new device that could detect the presence of waves or particles while barely disturbing them. Called a "Schrödinger's hat", the device has not yet been built in the lab but the team believes that it could someday be used as a new type of sensor for quantum-information systems. In the microscopic world of quantum mechanics, direct observation of the property of a particle – the position of an electron, for example – causes the collapse of the particle's wavefunction. The result is that the particle that you set out to measure has been changed in a significant way. In the early 1990s, physicists Avshalom Elitzur and Lev Vaidman at Tel Aviv University in Israel pointed out that it is not always necessary to observe particles directly to learn something of their nature. The researchers imagined a pile of bombs, each of which is designed to be triggered by the absorption of a single photon.
Universe Sandbox is an interactive space simulator for Windows based PCs.