World history of the top ten “most unexpected invention”

As the saying goes, “need to be the mother of invention”, but many inventors may not be admitted that “luck” is sometimes the mother of invention. Many people think that in the history of science, many great inventions are the results of the study of scientists’ sleepless nights. However, in fact, many of the most famous and most popular inventions in human history are actually “luck”. 1. telephone Although the…

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Bezos expedition retrieves Apollo rocket engines from ocean floor

A heat exchanger from an Apollo F-1 engine is seen in this handout photo from Bezos ExpeditionsBy Irene Klotz CAPE CANAVERAL, Florida (Reuters) – A recovery team funded by Amazon founder Jeff Bezos has plucked two rocket engines from the floor of the Atlantic Ocean that were used to send astronauts to the moon more than 40 years ago, he wrote on the project’s website on Wednesday. Bezos, the chief executive of Amazon, last year announced plans to search the sea floor for rocket motors shed during Saturn 5 launches to the moon during the 1969-1972 Apollo program. Bezos Expeditions found and retrieved two Saturn 5 first-stage engines from three miles beneath the Atlantic Ocean. …

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