-Caveat Lector- WJPBR Email News List [EMAIL PROTECTED] Peace at any cost is a Prelude to War! Invisible asteroids might endanger Earth Friday, 9 March 2001 13:44 (ET) Invisible asteroids might endanger Earth MELBOURNE, Australia, March 9 (UPI) -- Invisible asteroids and other cosmic bodies made of a new form of matter may pose a threat to Earth, asserts a noted Australian physicist. Robert Foot of the University of Melbourne claims a meteorite composed of mirror matter -- a form of the invisible dark matter that many say makes up over 95 percent of the universe -- could impact the Earth without leaving any fragments. Indeed, he told United Press International, asteroids made of mirror matter may have been responsible for such cataclysmic events as the so-called Tunguska blast, which destroyed acres of Siberian forest in 1908. While scientists generally attribute this explosion to a meteorite, no traces of such an object have ever been found. However, "mirror matter would be undetectable in our ordinary matter surroundings," Foot told UPI in a telephone interview. Foot believes mirror-matter asteroids might be a greater danger than normal asteroids. "These objects may pose an overall greater risk than space bodies composed of ordinary matter," Foot said. "An approaching space body made of pure mirror matter would not be detectable -- only after impact with the atmosphere would its effects be observable, but then it would probably be to late to do anything." Mirror matter, Foot claims, arises naturally from two apparent symmetries of nature. One says matter is unchanged whether it moves forward or backward in time; the other, that nature doesn't distinguish between right- and left-handed orientations. "These particles must exist if the symmetries exist," Foot said. In the invisible universe of mirror matter, Foot explained, space and time are reversed. Time moves backward and right-handed spatial coordinates have been interchanged with their left-handed counterparts. Something in the visible universe that is sitting at 50 degrees north and 20 degrees west as the clock ticks toward the future would have an invisible, identical counterpart at 50 degrees south and 20 degrees east as the clock ticks toward the past, according to Foot's theory. Invisible forms of matter that preserve symmetries are nothing new to physicists. Nobel Laureate Paul Dirac predicted that anti-matter must exist to preserve certain symmetries of matter. His prediction was borne out with the discovery of positrons, the anti-matter form of electrons. Princeton physicist Howard Georgi is skeptical of Foot's claims, however. "Robert Foot's ideas are interesting," Georgi told UPI. "They are also, of course, extremely speculative." Georgi also believes that invisible asteroids are not a top priority of physics research. "Foot's ideas have not attracted a huge following in the community that cares about these things, perhaps because the problems they solve, while interesting, are not the most critical puzzles that we are wrestling with," Georgi said. (Reported by UPI Science Writer Mike Martin from Columbia, Mo.) *COPYRIGHT NOTICE** In accordance with Title 17 U. S. C. Section 107, any copyrighted work in this message is distributed under fair use without profit or payment to those who have expressed a prior interest in receiving the included information for nonprofit research and educational purposes only.[Ref. http://www.law.cornell.edu/uscode/17/107.shtml ] Want to be on our lists? Write at [EMAIL PROTECTED] for a menu of our lists! <A HREF="http://www.ctrl.org/">www.ctrl.org</A> DECLARATION & DISCLAIMER ========== CTRL is a discussion & informational exchange list. Proselytizing propagandic screeds are unwelcomed. Substance—not soap-boxing—please! These are sordid matters and 'conspiracy theory'—with its many half-truths, mis- directions and outright frauds—is used politically by different groups with major and minor effects spread throughout the spectrum of time and thought. That being said, CTRLgives no endorsement to the validity of posts, and always suggests to readers; be wary of what you read. CTRL gives no credence to Holocaust denial and nazi's need not apply. Let us please be civil and as always, Caveat Lector. ======================================================================== Archives Available at: http://peach.ease.lsoft.com/archives/ctrl.html <A HREF="http://peach.ease.lsoft.com/archives/ctrl.html">Archives of [EMAIL PROTECTED]</A> http:[EMAIL PROTECTED]/ <A HREF="http:[EMAIL PROTECTED]/">ctrl</A> ======================================================================== To subscribe to Conspiracy Theory Research List[CTRL] send email: SUBSCRIBE CTRL [to:] [EMAIL PROTECTED] To UNsubscribe to Conspiracy Theory Research List[CTRL] send email: SIGNOFF CTRL [to:] [EMAIL PROTECTED] Om
