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Mars Base

Coffee, other stimulant drugs may cause high achievers to slack off: research - 0 views

medicalxpress.com/...3-coffee-drugs-high-slack.html

scibyte40 coffee

shared by Mars Base on 29 Mar 12 - No Cached
  • While stimulants may improve unengaged workers’ performance, a new University of British Columbia study suggests that for others, caffeine and amphetamines can have the opposite effect, causing workers with higher motivation levels to slack off.
  • impacts of stimulants on “slacker” rats and “worker” rats, and sheds important light on why stimulants might affect people differently, a question that has long been unclear
  • suggests that patients being treated with stimulants for a range of illnesses may benefit from more personalized treatment programs.
  • ...4 more annotations...
  • suggest that some stimulants may actually have an opposite effect for people who naturally favour the difficult tasks of life that come with greater rewards
  • found that rats – like humans – show varying levels of willingness to expend high or low degrees of mental effort to obtain food rewards.
  • with stimulants, the “slacker” rats that typically avoided challenges worked significantly harder when given amphetamines
  • worker” rats that typically embraced challenges were less motivated by caffeine or amphetamine
Mars Base

Slacker Rat, Worker Rat - Science News - 0 views

www.sciencenews.org/...Slacker_rat%2C_worker_rat

scibyte40 coffee

shared by Mars Base on 29 Mar 12 - No Cached
  • some individuals reliably went for the easy version and collected their small reward
  • Other animals overwhelmingly chose the intellectually harder route
  • Not only do these divisions between what the team termed slackers and workers exist, the researchers showed, but the differences persist across many trials.
  • ...3 more annotations...
  • For slacker rats, amphetamine sharpened the mental work ethic, making the animals more likely to choose the harder task.
  • can’t yet explain why stimulants would cause workers to choose the easier task
  • One possibility is that hard workers are already performing optimally, so anything that swings the system out of whack, such as stimulants, could cause a net decrease in productivity.
Mars Base

Jeff Bezos Plans to Recover Apollo 11 Rocket Engines From Ocean Floor | Wired Science |... - 0 views

www.wired.com/...jeff-bezos-apollo-11-engines

scibyte40 apollo

shared by Mars Base on 28 Mar 12 - No Cached
  • Billionaire Jeff Bezos announced plans to recover from the bottom of the Atlantic Ocean at least one of the F-1 engines that carried the Apollo 11 rocket into space
  • If one engine is raised, he imagines the agency would make it available to the public at the Smithsonian museum in Washington, D.C
  • Should he recover more than one, he has asked NASA to consider making the second one available at the Museum of Flight in Seattle
Mars Base

Bezos Expeditions | F-1 Engine Recovery - 0 views

www.bezosexpeditions.com/engine-recovery.html

scibyte40 apollo

shared by Mars Base on 28 Mar 12 - No Cached
  • Those five F-1s burned for just a few minutes, and then plunged back to Earth into the Atlantic Ocean, just as NASA planned. A few days later, Neil Armstrong stepped onto the moon.
Mars Base

Apollo 11′s Rocket Engines Found on the Bottom of the Ocean - 0 views

www.universetoday.com/...und-on-the-bottom-of-the-ocean

scibyte40 Apollo

shared by Mars Base on 28 Mar 12 - No Cached
  • Amazon.com founder Jeff Bezos has located the Apollo 11 F-1 rocket engines and plans to recover them
  • using state-of-the-art deep sea sonar, the team has found the Apollo 11 engines lying 14,000 feet below the surface
  • making plans to attempt to raise one or more of them from the ocean floor
  • ...9 more annotations...
  • don’t know yet what condition these engines might be in
  • they hit the ocean at high velocity and have been in salt water for more than 40 years
  • The Saturn V used five F-1 engines in the first stage
  • F-1 is still the most powerful single-chamber liquid-fueled rocket engine ever developed
  • producing one and a half million pounds of thrust, burning 6,000 pounds of rocket grade kerosene and liquid oxygen every second
  • On July 16, 1969, Apollo 11 was launched and the five F-1s burned for just a few minutes, and then plunged back to Earth into the Atlantic Ocean.
  • the engines remain the property of NASA
  • hopes that the space agency would allow the recovered engines to be displayed at the Smithsonian or another museum
  • no public funding will be used to attempt to raise and recover the engines, as it’s being undertaken by him privately
Mars Base

James Cameron returns from the deep : Nature News & Comment - 0 views

www.nature.com/...-returns-from-the-deep-1.10332

scibyte40 cameron MarianaTrench

shared by Mars Base on 28 Mar 12 - No Cached
  • Technical troubles hamper sample collection on deep-sea dive.
Mars Base

x | Home | Sky News - 0 views

news.sky.com/...16197479

scibyte40 cameron MarianaTrench

shared by Mars Base on 28 Mar 12 - No Cached
  • Cameron used a specially designed submarine, called Deepsea Challenger, to dive into the Mariana Trench nearly seven miles below the surface of the Pacific.
  • He reached the ocean's deepest point on Earth - a place where only two men had gone before - early on Sunday, local time.
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