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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

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.
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

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
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