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In 1971, the US Navy issued a requirement for a submarine-launched, multiple warhead, ballistic missile with intercontinental range and a stellar-inertial navigation system. This would give the Navy capability against Soviet missile siloes and other hardened targets. Lockheed proposed a two-phase program. Trident C-4 would fit in launch tubes in existing submarines, with a range 50% greater than Poseidon. Trident II D-5 would have longer stages, requiring a new class of submarine to be built to accommodate it, but have the desired intercontinental range. Lockheed began development of the Trident II in October 1983. First launch was in January 1987, and first submerged launch in March 1989. This was a failure, revealing problems with the first-stage engine nozzle.
Yeah, but it made for an amazing photo!
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3 cancer patients……. all now cancer free.
Black Holes Aren’t Black After All, Say Theoretical Physicists
Collapsed stars are just too big to trap light forever
Black holes are a crucial part of the great cultural legacy of Einstein’s theory of general relativity. They have fascinated scientists and laypeople alike since they entered the public consciousness in the latter half of the 20th century.
But it may be time to say goodbye to the notion of regions of space so dense that even light becomes trapped within them. In the last year or so, an intense debate about the paradoxical properties of black holes has left a number of theoretical physicists, including Stephen Hawking, suggesting that black holes might not exist at all, at least not in the form that anyone had imagined.
"Indeed, that’s exactly what appears to be happening. In the last few years, theoretical physicists have begun to think about what happens to information when it falls into a black hole. The general feeling is that information cannot be destroyed in this process and yet that’s exactly what seems to happen."
Said the IRS
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