Path: csiph.com!au2pb.net!usenet.blueworldhosting.com!feeder01.blueworldhosting.com!border2.nntp.dca1.giganews.com!Xl.tags.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail NNTP-Posting-Date: Wed, 18 Nov 2015 15:29:16 -0600 Message-ID: <564CEDBE.76BD@ix.netcom.com> Date: Wed, 18 Nov 2015 13:29:34 -0800 From: The Starmaker Reply-To: starmaker@ix.netcom.com X-Mailer: Mozilla 3.04Gold (WinNT; U) MIME-Version: 1.0 Newsgroups: sci.physics Subject: Re: Einstein was right - again! (Satellite observations of Black Holes confirm frame-dragging effect 80 years after prediction) References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 59 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 45.49.183.72 X-Trace: sv3-aE0X9aoUhr0ZP4woojqYT/m0s7GOO4UUg7CzhtKkJri8CNG5Yurc6E4GDu9moogAZwByoYDQj4jGr2w!yIQj53JwPzcipp0tV6BoK7udBZBABpJd3jXRKTZyvKHM4U8BWRgVT43IxpqYPWUxdF3d+A7UYVJR!NxSu9L5o X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 3636 Xref: csiph.com sci.physics:533991 Why are you posting news articles that were written on November 6, 1997? 6586 days ago 941 weeks ago 216 months ago almost 20 years ago??? Sam Wormley wrote: > > Einstein was right - again! (Satellite observations of Black Holes > confirm frame-dragging effect 80 years after prediction) > > http://science.nasa.gov/science-news/science-at-nasa/1997/ast06nov97_1/ > > > November 6, 1997: The next time you feel like you're barely dragging > > along, blame relativity. You'll be stretching the point, but it > > appears that Einstein was right: space and time get pulled out of > > shape near a rotating body. > > > > Einstein predicted the effect, called ``frame dragging,'' 80 years > > ago. Like many other aspects of Einstein's famous theories of > > relativity, it's so subtle that no conventional method could measure > > it. > > > > Using recent observations by X-ray astronomy satellites, including > > NASA's Rossi X-ray Timing Explorer, a team of astronomers is > > announcing that they see evidence of frame dragging in disks of gas > > swirling around a black hole. The discovery will be announced today > > at a meeting of the High Energy Astrophysics Division of the American > > Astronomical Society in Estes Park, Colo., by Dr. Wei Cui of the > > Massachusetts Institute of Technology, and his colleagues, Dr. Nan > > Zhang, working at NASA's Marshall Space Flight Center, and Dr. Wan > > Chen of the University of Maryland in College Park. > > > > Frame dragging is one of the last frontiers in relativity. More > > familiar and already proven are the conversion of mass into energy > > (as seen in atomic bombs and stars) and back, the Lorentz > > transformations that make objects near the speed of light grow > > thinner and heavier and stretch time, and the warping of space by > > gravity (as seen when light is bent by a massive object). > > > > Einstein also predicted that the rotation of an object would alter > > space and time, dragging a nearby object out of position compared to > > predictions by the simpler math of Sir Isaac Newton. > > > > The effect is incredibly small, about one part in a few trillion, > > which means that you have to look at something very massive, or build > > an instrument that is incredibly sensitive and put it in orbit. > > -- > > sci.physics is an unmoderated newsgroup dedicated > to the discussion of physics, news from the physics > community, and physics-related social issues.