Keystone Gray Posted August 8, 2009 Share Posted August 8, 2009 String TheoryPart I - http://www.youtube.com/watch?v=ZnQLsERqTIgPart II - http://www.youtube.com/watch?v=MMG7LA4Rsq8Part III - http://www.youtube.com/watch?v=NOzP6XhtAXoPart IV - http://www.youtube.com/watch?v=Du0LqsBe_iwQuantum Computers (The future of computers)/>http://www.youtube.com/watch?v=PW8rgKLPHMgMy favorite scientist, explaining the physics behind string theory. Michio Kaku (A renowned theoretical physicist.) hosts a weekly show on the radio, Explorations, which I listen to each Saturday morning if I'm able, in which he explains multiple sectors of theoretical science. On my plane trip to Pittsburgh for AC, I bought and read his novel, Physics of the Impossible, and it was a gripping read. In it, Kaku lays out how science fiction technology may be possible.Given the number of incredible intellectuals within our community, I felt compelled to share. This guy is a genious, and so much as hearing him talk is actually fairly enjoyable!mkaku.org Quote Link to comment Share on other sites More sharing options...
RazorFox Posted August 8, 2009 Share Posted August 8, 2009 Michio Kaku is amazing. Quote Link to comment Share on other sites More sharing options...
Tiridates Mikadze Posted August 8, 2009 Share Posted August 8, 2009 I didn't want to tell anyone this, but I'm a quantum computer from the future come to save you. Quote Link to comment Share on other sites More sharing options...
Kytec Switchblade Posted August 10, 2009 Share Posted August 10, 2009 Awesome, makes you wonder if there's a way to bend and reflect light to change the makeup of an atom. Would be entirely too unpredictable, but if it was 1 photon at a timewould have to be done by a computer, hit multiple quarks at multiple angles at once, since when an atom is smashed a number of quarks disappear almost instantly. Quote Link to comment Share on other sites More sharing options...
Desereck Creeggan Posted August 13, 2009 Share Posted August 13, 2009 That guy is amazing of what I see of him on the science channel at home.I still believe we can travel the speed of light by using light as our method of transportation :D(we have been able to slow down the speed of light [laser light] by using super cool and condensed gasses and have been able to speed it back up :3) Quote Link to comment Share on other sites More sharing options...
Keystone Gray Posted August 14, 2009 Author Share Posted August 14, 2009 The reason that light bends in glass or water is that light slows down when it enters a dense, transparent medium. The speed of light in a pure vacuum always remains the same, but light traveling through glass or water must pass through trillions of atoms and hence slows down. (The speed of light divided by the slower sped of light inside the medium is called the index of refraction. Since light slows down in glass, the index of refraction is always greater than 1.0). For example, the index of refraction is 1.00 for a vacuum, 1.0003 for air, 1.5 for glass, and 2.4 for diamond. Usually, the denser the medium, the greater the degree of bending, and the greater the index of refraction. [...] If one could control the index of refraction, inside a metamaterial so that light passed around an object, then the object would become invisible. To do this, this metamaterial must have a negative index of refraction, which every optics textbook says is impossible.Kaku then explains that a metamaterial is a mass which produces effects such as negative refractive indexes and reversed Doppler effects, and that they have been produced in laboratories. The problem is that a metamaterial is entropic; each and every atom within a metamaterial handles waves of light differently, and in order to produce invisibility, each atom must be manipulated to "thread" light through on a path.More videos:Expanding Human Lifespan/>http://www.youtube.com/watch?v=5P9k-jNQGYc Quote Link to comment Share on other sites More sharing options...
