Berkeley CSUA MOTD:Entry 38587
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2025/04/04 [General] UID:1000 Activity:popular
4/4     

2005/7/12-14 [Academia/StanfUrd] UID:38587 Activity:kinda low
7/12    Free lecture on gravity waves tomorrow night at stanford:
        http://continuingstudies.stanford.edu/course/EVT96.asp
        \- that GGS fellow is giving a talk on friday in SF. ok tnx.
           \_ url/time-location please
        \_ This guy is a Laser guy.  Why is he having a talk on gravitationa
              \- i dont have a url. sponsored by the long now people.
                 probably in NW quadrant of SF ... presideo or ft mason.
        \_ This guy is a Laser guy.  Why is he having a talk on gravitational
           waves?  What is nonlinear optics BTW?
           \_ Laser interferometry is an extremely sensitive detector of
              distance, including over long distances, which makes them
              useful for detecting gravity waves (since they should manifest
              themselves as distance fluctuations.)  As a laser guy, he's
              presumably involved at the detector end of things, and
              gravity waves make a much sexier topic for a talk like this
              than nonlinear optics (see below).
           \- narrowly, NLO is the study of the behavior of em radiation
              in "non linear" media ... which turns out to capture most
              complex optical phenomena. in practice, this is a pretty
              big catch all convering everyhting from lasers to lcds to
              "slowing light" and various other photonic manipulation
              projects. there are many applied subfields, including the
              obvious [like optical comm], but also less obvious ones [like
              obvious [like telecom], but also less obvious ones [like
              biology, but i dont know anything about that]. in terms of
              physical phenomena, it includes things like the raman effect
              and on the theroy side things like the theory of solitons.
              berkeley actually has some quite important people in this
              field [CHU, SHEN, TOWNES etc]. if there are any phyiscs grad
              student replying, feel free to delete this. optics is the only
              field where i came across septuple integrals. optics text
              books are a good way to scare normal people.
              area [CHU, SHEN, TOWNES etc].
              \_ It's fairly normal to see huge nested integrals in
                 belief propagation. -- ilyas
           \_ Laser interferometry is the leading method for detecting
              gravity waves (and possibly proving string theory). NASA
              is currently working on a space based laser interferometry
              system called LISA (Laser Interferometry Space Antenna)
              which is supposed to be a big laser triangle in space (3
              million miles each side) and will be able to detect gravity
              waves generated by black holes and stars.
              iirc, there is a current laser interferometry experiment
              called LIGO (Laser Interferometer Gravitational Wave
              Observatory) that hopes to detect gravity waves from the
              big bang in order to show if some predictions of string
              theory are correct.
2025/04/04 [General] UID:1000 Activity:popular
4/4     

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continuingstudies.stanford.edu/course/EVT96.asp
View other Special Events............................................... International Year of Physics: Black Holes, Einstein, and Gravitational W aves (EVT 96) SUMMER SCIENCE LECTURE SERIES CELEBRATING THE INTERNATIONAL YEAR OF PHYSICS Black Holes, Einstein, and Gravitational Waves For more than 100 years scientists have believed in the existence of "bla ck holes," massive objects and forces from which nothing - not even ligh t - can escape. Black holes are thought to exist in the core of every ga laxy of the Universe, including our home galaxy, the Milky Way. A centur y ago Einstein predicted that black holes emitted waves of gravitational radiation. By studying gravitational waves, Professor Byer and his coll eagues are trying to provide a new window for looking at the Universe ba ck to the beginning of time. Join us for this special session, which will begin at 8:30 PM. Professor Byer will begin his talk in the Palm Courtyard, explaining what gravitat ional waves are, how the size and movement of stars and planets prove th eir existence, and why they may be a key to understanding the beginning of time. We will then walk outside to the nearby Angell Field where, usi ng the dark sky as our classroom, Professor Byer will point us to the Sa ggitarius constellation and the center of the Milky Way, using the stars and planets as "props" for the remainder of his talk. Wednesday, July 13 8:30 - 9:45 PM Admission is free, on a first come, first served basis for up to 100 peop le. Feel free to bring a pair of binoculars for better viewing and don't forg et to dress appropriately for the chilly evening weather! Robert Byer Applied Physics Professor Robert L Byer has conducted research and taught classes in lasers and no nlinear optics at Stanford University since 1969. His current research i ncludes the development of nonlinear optical materials and laser diode p umped solid state laser sources for applications to gravitational wave d etection and to laser particle acceleration. Professor Byer has publishe d more than 400 scientific papers and holds 40 patents in the fields of lasers and nonlinear optics. He is a member of the National Academy of E ngineering the National Academy of Science. In addition to his teaching and research, Professor Byer has served Stanford as past Chair of the Ap plied Physics Department, Associate Dean of Humanities & Sciences, and D ean of Research and Graduate Policy. Past President of several national professional societies, he was also a founding member of the California Council of Science and Technology, and has served on the National Scienc e Foundation's Engineering Advisory Board. He currently is Director of S tanford's Hansen Laboratory of Experimental Physics. This year marks the 100th anniversary of Albert Einstein's "miracle year" when he published a series of scientific papers that revolutionized our understanding of space, time and the atom. To commemorate this, the Uni ted Nations has declared 2005 the International Year of Physics. This su mmer, Stanford Continuing Studies, the Stanford Alumni Association and t he Office of Science Outreach will host four informal evening talks on p hysics by Stanford faculty members. Introductions will be made by some o f Stanford's most eminent scientists. Host for both the July and August events will be Arthur Bienenstock, Vice Provost and Dean of Research and Graduate Policy. For the September lecture, the host will be Martin Fej er, Professor and Chair of the Applied Physics Department. You are invited to come to the Frances C Arrillaga Alumni Center*, buy a cup of coffee or glass of wine at the Alumni Cafe, and join us in the b eautiful outdoor Palm Court garden for an informal half hour talk on phy sicswhich, we promise, will be delivered in lay termsfollowed by Q&A. Admission is free, on a first come, first served basis for up to 100 peo ple. String Theory: Figuring Out What Holds the Universe Together *LOCATION: Frances C Arrillaga Alumni Center, 326 Galvez Street, at the intersection of Campus Drive and Galvez. Parking in the evenings is free and is available along Galvez, or in the parking lot just beyond the Al umni Center on the right side of Galvez.