Oklahoma Virtual Charter Academy to Celebrate 2023 Commencement
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2023-05-19 23:49
A meteor which exploded over the Atlantic had similar force as Hiroshima atomic bomb
A meteor exploded over the Atlantic Ocean at a force comparable to the atomic bomb dropped on Hiroshima during the Second World War. While this may sound like a scary prospect, there is nothing to worry about as this asteroid did not actually hit the Earth. The debris burned up at a height of around 31 kilometres above the Atlantic Ocean off the coast of Brazil, experts say. Data from NASA showed that the meteor appeared to release the equivalent energy of around 12,000 tonnes of TNT - that's approximately 12 kilotons of explosive power. Sign up to our free Indy100 weekly newsletter Similarly, the Hiroshima Bomb detonated with an approximate energy of 15 kilotons – that is, 15 thousand tonnes of TNT equivalent. This force caused devastation in the Japanese city and killed at least 80,000 people instantly, with tens of thousands dying later due to radiation exposure. Although 12 kilotonnes does sound like a lot, there have also been other explosions that have had a higher number than this. One example is the 450 kilotons of explosive energy (0.45 megatons) released as a result of the Chelyabinsk meteor back in 2013 - 26 to 33 times as much energy as the Hiroshima Bomb. The house-sized asteroid exploded 14 miles above the ground and generated a shock wave that blew out windows over 200 square miles and damaged some buildings. Over 1,600 people were injured in the blast, mostly due to broken glass, according to NASA. Elsewhere, amazing footage captures the moment a meteor crashes into the moon and, scientists discover a secret planet hiding in our solar system. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
2023-07-27 21:16
Amazon plans to hire 250,000 US workers for holiday season
By Arriana McLymore NEW YORK, NY (Reuters) -Amazon said it plans to add 250,000 U.S. workers for the holiday shopping
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CRN Spotlights Twenty-Four Ingram Micro Executives on the 2023 Women of the Channel List; Honors Three to Power 100
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China to restrict exports of chipmaking materials as US mulls new curbs
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Master business skills without paying for an MBA
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2023-05-31 21:23
Amazon shareholder sues board, Bezos over Blue Origin launch contracts
An Amazon shareholder has filed a lawsuit against founder Jeff Bezos and the Amazon board alleging directors failed
2023-09-01 16:22
Mystery of how a meteor left Earth thousands of years ago, then came back
Baffled scientists are trying to unravel the mystery of how a meteorite left Earth’s atmosphere and somehow came back again. Unlike boomerangs, meteorites don’t have a reputation for coming back around again, so when a black rock found in Morocco in 2018 seemed to have done just that, it left the scientific community confused. The rock, whose official name is Northwest Africa (NWA) 13188, is a scientific first (that we know of) to have left the Earth’s atmosphere, gone into outer space and returned again. The 646-gram piece of rock is remarkable not only for its journey but also its makeup. NWA 13188 has a bubbly texture and contains crystals. Its chemical components suggest that the rock is made out of the minerals produced by molten minerals that come from volcanic activity. It also possesses trace elements and oxygen isotopes, which suggests to scientists that it is not the typical meteorite that originates in space, but instead, it originated on Earth itself. However, according to a geophysicist from the French National Centre for Scientific Research, Jérôme Gattacceca, who studied the rock and presented the findings, it has undergone an interesting journey in orbit. Scientists can identify this because of the presence and concentration levels of Helium-3, Beryllium-10, and Neon-21, which suggest exposure to cosmic rays that are not present in Earth’s atmosphere. Compared to other more traditional meteorites scientists have studied, the concentrations are lower on NWA 13188 but are still higher than rocks on Earth. It is thought that NWA 13188 could have been expelled from Earth and in orbit for thousands of years. Scientists said, “We consider NWA 13188 to be a meteorite, launched from the Earth and later re-accreted to its surface”. Despite the rock originating on Earth, the team said it fits the definition of a meteorite since it has achieved orbit. The definition states: “Material launched from a celestial body that achieves an independent orbit around the Sun or some other celestial body, and which eventually is re-accreted by the original body, should be considered a meteorite. “The difficulty, of course, would be in proving that this had happened, but a terrestrial rock that had been exposed to cosmic rays and had a well-developed fusion crust should be considered a possible terrestrial meteorite.” It is not yet understood how the rock came to be launched from Earth into space, as researchers said it still “remains to be determined”. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
2023-08-25 23:17
FIFA 23 Community/EFIGS TOTS Upgrade SBC: How to Complete
FIFA 23 Community/EFIGS TOTS Upgrade SBC is now live during Ultimate Team of the Season. Here's how to complete the SBC and if it's worth it.
2023-06-15 01:24
Google reaches $93 million privacy settlement with California
By Jonathan Stempel Google will pay California $93 million to resolve a lawsuit accusing the search engine company
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Google's AI chatbot goes personal tapping into Gmail
Google on Tuesday said it had integrated Gmail, YouTube and other tools into its Bard chatbot as the tech giants seek to persuade users that generative AI is useful and...
2023-09-19 23:45
A running list of the best TV deals to shop before Prime Day even starts
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2023-06-24 17:52
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