December 8, NASA: Life with arsenic December 7, Last week, in a much publicized news conference, NASA announced the discovery of a bacterium that can use arsenic instead of phosphorus. The news media covered it with a flourish -- and produced much nonsense. The paper was posted at the Science magazine web site, so we can look at what was really shown.
An asteroid wiped out the dinosaurs Finally confirmed: An asteroid wiped out the dinosaurs By Sebastian Anthony on February 8, at 8: The Cretaceous—Paleogene extinction was the last great extinction event to occur on Earth, and is most notable for causing the diversification of mammals that eventually resulted in Homo sapiens.
The collision, which left behind a kilometer mile crater, released zettajoules of energy — teratonnes of TNT, or roughly two million times stronger than the largest thermonuclear device ever used the Russian Tsar Bomba.
Due to high levels of oxygen in the Cretaceous atmosphere, the impact may also have caused intense, global firestorms that killed off many other species. You can just about see a portion of the impact crater in the top left corner. There was certainly a massive asteroid impact, but previous evidence showed that the asteroid impact occurred up toyears before the extinction of the dinosaurs.
Biologists and geologists have argued that there may have been another cause — an impact at the Shiva crater off the coast of India, global volcanic eruptions, or perhaps something more gradual.
The Chicxulub crater (/ ˈ tʃ iː k ʃ ʊ l uː b /; Mayan: [tʃʼikʃuluɓ]) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named. It was formed by a large asteroid or comet about 10 to 15 kilometres ( to miles) in diameter, the Chicxulub impactor, striking the Earth. Re possible reasons for passivism: my personal one is that I had tried activism a few times over the years, and it backfired in various traumatic and unexpected ways, even though my words and actions were indistinguishable (to me) from those taken by other, much more successful activists. As a follow-up to Tuesday’s post about the majority-minority public schools in Oslo, the following brief account reports the latest statistics on the cultural enrichment of schools in Austria. Vienna is the most fully enriched location, and seems to be in roughly the same situation as Oslo. Many thanks to Hermes for the translation from benjaminpohle.com
Now, however, European and American scientists have re-tested debris from Chicxulub using state-of-the-art equipment and narrowed the asteroid impact down to a period of 11, years, between When dealing with geological timescales, a range of 11, years is about as accurate as you can get.I never watched more than a few minutes of any movie from this series, but I picked up a fairly negative vibe from it even in passing.
CDAN talks about what was apparently going on behind the scenes while it .
by Joan d’Arc. from ParanoiaMagazine Website Spanish version. According to the harmonic rule known as Bode’s Law, a planet should exist between Mars and Jupiter - some million miles from the Sun. Beginning in , tiny rock and metallic objects were discovered to . Apr 24, · Man will never outgrow the “taste for flesh,” as you call it.
Proper nutrition requires the consumption of animal fats and proteins not found in other food stuffs. Memories of Brian. B y Wade Frazier.
April Introduction. Brian’s Early Years. After NASA.
On the Frontiers of Science. I Meet Brian. Brian’s Ride Gets Rough. That has made the identity of the dinosaurs’ true killer — an impact, volcanism or both — less clear, says Paul Renne. He is a geoscientist at the Berkeley Geochronology Center in California.
He is a geoscientist at the Berkeley Geochronology Center in California. The table below presents an abbreviated geologic time scale, with times and events germane to this essay.
Please refer to a complete geologic time scale when this one seems inadequate.