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Science and technology

Isaac Newton Worked from Home During the Plague and ‘Discovered’ Gravity

Lynda Pelley sends us this link:

https://historyhustle.com/isaac-newton-worked-from-home-plague/

Just like people all over the world are working from home to prevent the spread of coronavirus, Isaac Newton had to work from home during the Bubonic plague.

It was during that time that he was his most productive, developing his theories of calculus, optics, and even gravity.

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Isaac Newton was a phycisist, mathemetician, astronomer, (and on and on), and is considered one of the most influential individuals in the advancement of human knowledge

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Science and technology

Testing the value of artificial gravity for astronaut health

Testing the value of artificial gravity for astronaut health

by Staff Writers, Space Daily,  Paris (ESA),  Mar 22, 2019

The short-arm centrifuge at the German Aerospace Center’s (DLR) :envihab facility in Cologne, Germany will be used during the first joint long-term bedrest rest study commissioned by ESA and US space agency NASA to investigate the potential of artificial gravity in mitigating the effects of spaceflight. The study begins on 25 March 2019 and will run for 89 days. Test subjects will need remain in beds with the head end tilted 6 degrees below horizontal for 60 of these days to simulate the microgravity of space.

Test subjects in Cologne, Germany will take to their beds for 60 days from 25 March as part of a groundbreaking study, funded by European Space Agency ESA and US space agency NASA, into how artificial gravity could help astronauts stay healthy in space.

Carried out at the German Aerospace Center’s (DLR) :envihab facility, the long-term bedrest study is the first of its kind to be conducted in partnership between the two agencies. It is also the first to employ DLR’s short-arm centrifuge as a way of recreating gravity for participants.

But just how easy is it to stay in bed for 60 days and what is the relevance of adding artificial gravity for space researchers? We pull back the covers on this unique investigation as preparations get underway.

A dream job
 Bedrest has long been used to mimic some of the changes our bodies experience in the weightlessness of space. Humans are made to live on Earth and without the constant pull of gravity it is common for muscles and bones to start wasting away.

Currently, astronauts on board the International Space Station exercise for up to 2.5 hours per day and maintain a balanced diet to help mitigate microgravity’s effects, but scientists believe adding a dose of artificial gravity could be key during longer-term missions.

Though it may sound simple for the 8 male and 4 female volunteers involved, lying in bed for a full 60 days, plus a further 29 days of acclimatisation and recovery, is not quite as restful as it seems.

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