In 1911, archaeologists dug up strings of iron beads at the Gerzeh cemetery, about 43 miles south of Cairo. The Gerzeh bead is the earliest discovered use of iron by the Egyptians, dating back from 3350 to 3600 BC. The bead was originally thought to be from a meteorite based on its composition of nickel-rich iron, but scientists challenged this theory back in the 1980s. However, the latest research places this theory back on top.
The scientists used a combination of electron microscope and X-ray CT scanner analyses to demonstrate that the nickel-rich chemical composition of the bead confirms its meteorite origins.
Philip Withers, a professor of materials science at University of Manchester, said meteorites have a unique microstructural and chemical fingerprint because they cooled incredibly slowly as they traveled through space. He said it was interesting to find that fingerprint in the Gerzeh bead.
“This research highlights the application of modern technology to ancient materials not only to understand meteorites better but also to help us understand what ancient cultures considered these materials to be and the importance they placed upon them,” said Open University Project Officer Diane Johnson, who led the study.
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Egypt Meteor Jewlery
It is the first global geological map of Mars since the Viking orbiter’s effort in 1987 – which you can stroll through on Google Earth. It reveals that much of the Martian surface is older than previously thought, and confirms the planet was geologically active until recently.
The map will help pinpoint interesting landing spots for upcoming missions like the European Space Agency’s ExoMars, due to launch in 2018, and NASA’s InSight, due to launch in 2016 – not to mention ambitious plans to put a reality-TV show on Mars.
Geological Map of Mars
Twain in the lab of Nikola Tesla, spring of 1894 Taken in the spring of 1894, and originally published as part of an article by T.C. Martin called “Tesla’s Oscillator and Other Inventions” that appeared in the Century Magazine (April 1895). source Wikipedia http://ift.tt/1xWIug7
Twain meets Tesla
These are the depictions of the most intense meteor storm in recorded history – the Leonid meteor storm of 1833. The Leonid meteor shower is annually active in the month of November, and it occurs when the Earth passes through the debris left by the comet Tempel-Tuttle. While the typical rates are about 10 to 15 meteors per hour, the storm of 1833 is speculated to have been over 100,000 meteors per hour, frightening people half to death.
Here’s how Agnes Clerke, an astronomer witnessing the event, described it: “On the night of November 12-13, 1833, a tempest of falling stars broke over the Earth… The sky was scored in every direction with shining tracks and illuminated with majestic fireballs. At Boston, the frequency of meteors was estimated to be about half that of flakes of snow in an average snowstorm.” (x)
Depictions of #leonid 1833
Thomas Wright, An original theory of the universe, 1750. London. Via Linda Hall Library
1 cross section of the model of the Milky Way galaxy. 2 Multiple solar systems with comets. 3 The symbolic eye of Deity in all star systems: A finite View of Infinity. 4 The first depiction of multiple galaxies in a book
Thomas Wright. An Original View of the #Universe