Science Cafe - What Physicists REALLY think about Time Travel - WDAM.COM - TV 7 - News, Weather and Sports

Science Cafe - What Physicists REALLY think about Time Travel

Posted: Updated:

This is a news release from Science Cafe

Long a staple of science fiction stories, time travel continues to capture the public's interest. But is it plausible, or even possible? There are two types of time travel: travel forward in time and travel backward in time.

 

Join Dr. Lawrence Mead for the first Science Café of the spring semester on Monday, January 27, 2014, in Cook Library Room 123 at 6 p.m.

 

Dr. Mead, professor in the Department of Physics and Astronomy, will present the modern physicists' view of time and try to provide a qualitative understanding of what time travel of both types really entails. Such an understanding requires the laws of relativity (both special and general) and of quantum mechanics. Using those principles, various "proposals" for time travel will be examined, and for each it will be shown how experiments either confirm or eliminate each one as a possibility. Topics include the Twin Travelers Effect, the CPT-theorem and its consequences, rotating black holes, Einstein-Rosen bridge (worm holes in space), the Grandfather paradox and Stephen Hawking's Chronology Protection Principle.

 

A Science Café's casual meeting place, plain language, and inclusive conversation create a welcoming and comfortable atmosphere for people whose primary background may not be science. Each meeting is organized around an interesting scientific topic, with a presenter (usually a scientist) giving a brief background overview, usually with visuals, before the discussion kicks off.

 

Science Cafés are free and open to the public. For more information, contact Tracy Englert at 601.266.6396 or Tracy.Englert@usm.edu. Find out more about Science Cafés.

  • LOCALLOCALMore>>

  • First lady announcing one-stop job site for vets

    First lady announcing one-stop job site for vets

    Thursday, April 24 2014 1:34 AM EDT2014-04-24 05:34:03 GMT
    By JIM KUHNHENN Associated Press WASHINGTON (AP) - Aiming to streamline employment resources for people leaving the military, the government is creating an integrated website that can help job-seekersMore >>
    Aiming to streamline employment resources for people leaving the military, the government is creating an integrated website that can help job-seekers create resumes, connect with employers and become part of a database of veterans and their spouses for companies to mine for skills and talents.More >>
  • US weighs clemency for inmates jailed for 10 years

    US weighs clemency for inmates jailed for 10 years

    Wednesday, April 23 2014 11:51 PM EDT2014-04-24 03:51:08 GMT
    By ERIC TUCKER Associated Press WASHINGTON (AP) - The Justice Department is encouraging nonviolent federal inmates who have behaved in prison, have no significant criminal history and have already servedMore >>
    The Justice Department is encouraging nonviolent federal inmates who have behaved in prison, have no significant criminal history and have already served more than 10 years behind bars to apply for clemency, officials announced Wednesday.More >>
  • Spacewalking astronauts complete urgent repair job

    Spacewalking astronauts complete urgent repair job

    Wednesday, April 23 2014 9:39 PM EDT2014-04-24 01:39:06 GMT
    Spacewalking astronauts easily replaced a dead computer outside the International Space Station on Wednesday and got their orbiting home back up to full strength. The two Americans on board, Rick MastracchioMore >>
    Spacewalking astronauts easily replaced a dead computer outside the International Space Station on Wednesday and got their orbiting home back up to full strength.More >>