Download 50 Ways the World Is Going to End: The Biggest Threats to by Alok Jha PDF

By Alok Jha

Demise by way of Euphoria. Dysgenics. inhabitants loss of life Spiral. Genetic Superhumans. Geomagnetic Reversal. Galactic Collision. Strangelets. no matter if we love it or no longer, everything's going to come back to an attractive disagreeable halt on our planet at some point soon sooner or later. What we do not recognize is what shape our extinction is probably going to take. during this available and enjoyable ebook, acclaimed author Alok Jha explains the head-spinning apocalyptic technology at the back of 50 scary doomsday situations.

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Many former members of the Soviet military have confirmed its existence: in the 1990s, members of the Central Committee of the Communist Party gave representatives of the American defense company Braddock, Dunn & McDonald details of the Soviet preparedness for a nuclear attack. General Varfolomei Korobushin, former deputy chief of staff of the Soviet Strategic Rocket Forces, said that the country’s biggest fear in the Cold War was of a US first strike, so their main objective was to design a system that was capable of launching as soon as an attack was detected.

If extinction were limited to only the “critically endangered” species over the next century, and those extinction rates continued, the time until 75 percent of species were lost per group would be 890 years for amphibians, 2,265 years for birds and 1,519 years for mammals. At the slower end of Barnosky’s calculations, the range of extinction times for amphibians is around 4,500 years, just over 11,300 years for birds and 7,500 years for mammals. ” A separate analysis by scientists at the University of York and the University of Leeds examined the relationship between climate and biodiversity over the past 520 million years and uncovered an association between the two.

The problem faced by nuclear bomb engineers is getting hold of enough U-235: you need at least 50 kg to make a bomb. Naturally occurring uranium is mostly U-238, so it needs to be weeded out and the U-235 concentrated into the sample you are collecting. This is where it starts to get difficult: for every 25,000 tons of uranium ore, only 50 tons of metal are produced, and less than one percent of that is uranium-235. And no standard extraction method will separate the two isotopes, because they are chemically identical.

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