[meteorite-list] Science Loses When PR Becomes Top Priority(Brenham Meteorites)
From: Rob Wesel <rob_at_meteoritecentral.com>
Date: Tue Nov 7 01:06:51 2006 Message-ID: <002401c70232$eac99bd0$d8271518_at_robc95bc401755> Man is this guy bitter, here's his email address if you wish to send him an e-hug. kre787f_at_missouristate.edu Rob Wesel http://www.nakhladogmeteorites.com ------------------ We are the music makers... and we are the dreamers of the dreams. Willy Wonka, 1971 ----- Original Message ----- From: "Ron Baalke" <baalke_at_zagami.jpl.nasa.gov> To: "Meteorite Mailing List" <meteorite-list_at_meteoritecentral.com> Sent: Monday, November 06, 2006 9:57 AM Subject: [meteorite-list] Science Loses When PR Becomes Top Priority(Brenham Meteorites) > > http://www.news-leader.com/apps/pbcs.dll/article?AID=/20061106/OPINIONS02/611060326/1006/OPINIO > > Science loses when PR becomes top priority > Kevin Evans > Voice of the Day > November 6, 2006 > > In the last couple of weeks, there has been tremendous media attention > given to the Houston Museum of Natural History and NASA scientists' > "discovery" and recovery of a 154-pound Brenham meteorite fragment in a > Kansas wheat field. Their use of ground-penetrating radar was touted for > its potential in exploration of the planet Mars. > > What the world doesn't know is that Katie Click, an 18-year-old high > school senior from Springfield, working on a project in conjunction with > her earth science teacher and Missouri State University scientists, made > a similar discovery just two miles away from the Kansas site, using the > same GPR technology, two weeks earlier. > > The difference - aside from the reported $50,000 the museum paid for > their discovery - is that Katie was conducting her research for the > Ozark Science and Engineering Fair. Science teachers train young > scientists to formulate multiple working hypotheses, to test hypotheses > by making observations and collecting data, to integrate and interpret > the data, and to present the results in scientific meetings or > literature, where it is subject to critical review and discussion among > the scientific community. Unfortunately, in the course of conducting her > science fair project, she has just learned an important new step in the > scientific method - contact the media first. > > There are also some factual issues related to the discovery that need to > be addressed. In the first place, this is not the first or biggest > Brenham meteorite found. Second, it is not the first use of GPR to image > buried impact craters or meteorites. In fact, it is not even the first > Brenham meteorite to be imaged using GPR. Katie did that two weeks > earlier when she pushed a GPR over Haviland crater, the only known > impact crater associated with the Brenham meteorite, and a short > distance away from the "discovery" locality. > > It is ironic that two teams converged with the same ideas to determine > the age and image the impact horizon with GPR, since the last major > scientific effort to examine the Haviland crater and its > meteorite-strewn field was in 1933. Initial reports from the last > expedition mentioned the possibility of the largest meteorite fragment. > It turned out to be cable from an oil rig. Some later reports are also > in error. The precise age of the impact is unknown. The Earth Impact > Database estimate an age of 1,000-2,000 years, but these are only > estimates. Scientists in the 1960s confirmed that American Indian beads > made from the Brenham meteorite were found in burial mounds of the > Hopewell Culture, which lasted from 200 B.C. to 400 A.D., so the age of > the impact has to be at least 1,600 years old. > > The bottom line is: you can't look at sediments and determine their ages > in the field. It requires careful laboratory analyses and collection of > samples from locations that are conducive to preserving carbon, such as > along a horizon rich in meteoritic material. The meteorite hunter who > guided the Houston science team clearly wasn't interested in gaining > contextual information on the fragmentation and impact of the Brenham > meteorite when he dug up meteorites over the last two years, including > the 650 kg specimen that was the second largest recovered. > > The commercial meteorite market has a seamy underside. "Meteorite > hunter" may sound like an auspicious-sounding title, but it can be akin > to tomb raiding. Archeologists and paleontologists are all too familiar > with commercial collectors in their fields. Meteorites provide the same > opportunity. At best, meteorite hunters can provide rare or exotic > specimens for scientific study, but more often than not, vital > information is destroyed or specimens wind up in the hands of private > collectors. > > When public institutions and government agencies partner with commercial > enterprises to hunt for meteorites and then publicize undocumented > claims, it short-circuits science methods and it sends the wrong message > to students. This concerns me both as a geologist and as a teacher of > future scientists. > > In the last couple of weeks, there has been tremendous media attention > given to the Houston Museum of Natural History and NASA scientists' > "discovery" and recovery of a 154-pound Brenham meteorite fragment in a > Kansas wheat field. Their use of ground-penetrating radar was touted for > its potential in exploration of the planet Mars. > > ------------------------------------------------------------------------ > Kevin Evans is an assistant professor of geography, geology and planning. > > ______________________________________________ > Meteorite-list mailing list > Meteorite-list_at_meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > Received on Tue 07 Nov 2006 01:06:49 AM PST |
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