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Mars Base

Astronaut Ice Cream: Frozen Dessert Launching to Space Station | Space.com - 0 views

www.space.com/ream-spacex-dragon-launch.html

scibyte66 SpaceX

shared by Mars Base on 07 Oct 12 - No Cached
  • The vanilla with swirled chocolate sauce ice cream cups won't melt on their three-day journey to the space station thanks to a freezer on board the Dragon capsule
  • e first time we are taking powered cargo up. We are taking up a GLACIER freezer, which has refrigerated science samples in it
  • The mini-fridge sized freezer previously flew aboard the space shuttle.
  • ...3 more annotations...
  • GLACIER, or General Laboratory Active Cryogenic ISS Experiment Refrigerator, is primarily used to preserve science samples that require temperatures between minus 301 and 39 degrees Fahrenheit (minus 160 and 4 degrees Celsius
  • The brand of ice cream flying in the Dragon's GLACIER is Blue Bell Creameries, a Texas dairy that has a strong fan base in Houston
  • Blue Bell ice cream has been flown to the space station before. The creamery's cups first launched to the orbiting laboratory in 2006 on board the space shuttle Atlanti
Mars Base

'God particle' discovery poses Nobel dilemma - 0 views

phys.org/...cle-discovery-poses-nobel.html

scibyte66 scibyte67 HiggsBoson

shared by Mars Base on 08 Oct 12 - No Cached
  • But whether the July 4 fireworks will unlock the great prize is unclear.
  • cautious, given that the new particle has not yet been officially sealed as the Higgs.
  • almost certain it is the coveted beast
  • ...14 more annotations...
  • y still need to confirm this
  • s further work to see how it behaves and reacts with other particles
  • there is a remote possibility that the new particle is not the Higgs, although this would be an even more groundshaking announcement.
  • six physicists, each building on the work of others, published a flurry of papers on aspects of the theory within four months of each other back in 1964.
  • The first were Belgians Robert Brout, who died last year, and Francois Englert.
  • followed by Higgs, who was the first to say only a new particle would explain the anomalies of mass
  • further complication is that thousands of physicists worked in the two labs at CERN's Large Hadron Collider near Geneva where Higgs experiments were conducted independently of each other.
  • decide whether theoreticians or experimentalists—or both—should get the glory.
  • At most three names, although they can include organisations, can share a Nobel
  • e prize cannot be given posthumously.
  • The Nobel will "eventually" go to the Higgs
  • s not yet certain that the newly-discovered particle is in fact a Higgs boson
  • nothing stopping us from giving the prize to an organisation. But it has not been the custom in the scientific prizes
  • The Nobel Peace Prize has often been awarded to organisations. But in the science prizes we have tried to find the most prizeworthy individuals
Mars Base

'Star Trek' fusion impulse engine in the works | Crave - CNET - 0 views

news.cnet.com/...on-impulse-engine-in-the-works

scibyte66 WarpDrive

shared by Mars Base on 07 Oct 12 - No Cached
  • the scientists are hoping to make impulse drive a reality by 2030
  • deuterium [a stable isotope of hydrogen] and Li6 [a stable isotope of the metal lithium] in a crystal structure
  • basically dilithium crystals
  • ...1 more annotation...
  • prominent
Mars Base

Did NASA's Voyager 1 Spacecraft Just Exit the Solar System? | Space.com - 0 views

www.space.com/r-spacecraft-solar-system.html

scibyte66 scibyte67 Voyager1

shared by Mars Base on 09 Oct 12 - No Cached
  • Scientists are crunching one more set of numbers to find out for sure.
  • New data from the spacecraft indicate that the historic moment of its exit from the solar system might have come and gone two months ago
  • For two years now, data beamed back to Earth by Voyager 1 has hinted at its close approach to the edge of the solar system, a pressure boundary called the heliopaus
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  • bubble of electrically charged particles blowing outward from the sun (called the heliosphere) exactly counterbalances the inward pressure of the gas and dust from interstellar space, causing equilibrium between the two
  • scientists have had trouble figuring out what, exactly, happens at or near this boundary — making it hard to tell whether Voyager has crossed it
  • In 2010, Voyager passed the point where the solar wind, a stream of charged particles flowing outward from the sun, seemed to
  • indicated that the wind had suddenly died down, and all the surrounding solar particles were at a standstill
  • "stagnation region" came as a surprise
  • expected to see the solar wind veer sideways
  • the perplexing collapse of the solar wind at the edge of the heliosphere left them without a working model for the outer solar system
  • no well-established criteria of what constitutes exit from the heliosphere
  • "All theoretical models have been found wanting."
  • a space scientist at Johns Hopkins who works with Voyager 1 data, said that in any model of the heliopause, an object exiting through it should experience three changes: a sharp rise in the number of collisions with cosmic rays (high-energy particles from space), a dramatic drop in the number of collisions with charged particles from the sun, and a change in the direction of the surrounding magnetic field.
  • Based on two of those criteria, Voyager 1 looks as if it passed through the heliopause at the end of the summer
  • The level of these cosmic ray collisions jumped significantly in late August.
  • spacecraft has experienced a steady rise in the number of collisions with particles whose energies are greater than 70 Mega-electron-volts, indicating they are probably cosmic rays emanating from supernova explosions far beyond the solar system
  • in late August, cosmic ray collisions sharply rose, and solar particle collisions sharply fell: two indicators of a transition through the heliopause
  • To officially declare Voyager's crossing, the scientists need to check if the third condition holds
  • change in magnetic field direction
  • e interstellar field beyond the influence of the sun) is critical because, even though there is debate among astrophysicists as to what direction the field will lie in
  • unlikely that it is the direction that we have been seeing at Voyager 1 throughout the most recent years
  • scientists could not say when the magnetic field analysis would be finished. But when it is
  • Once we have a consensus within the team we will inform NASA for a proper announcement,
Mars Base

An apple a day lowers level of blood chemical linked to hardening of the arteries - 0 views

medicalxpress.com/...day-lowers-blood-chemical.html

scibyte66 MedicalTreatment

shared by Mars Base on 03 Oct 12 - No Cached
  • In a study
  • consumption of one apple a day for four weeks lowered by 40 percent blood levels of a substance linked to hardening of the arteries.
  • Taking capsules containing polyphenols, a type of antioxidant found in apples, had a similar, but not as large, effect.
  • ...9 more annotations...
  • The study
  • , found that the apples lowered
  • "bad" cholesterol. When LDL
  • , the cholesterol is more likely to promote inflammation and can cause tissue damage.
  • tremendous effect against LDL being oxidized with just one apple a day for four weeks
  • difference was similar to that found between people with normal coronary arteries versus those with coronary artery disease
  • the polyphenol extract did register a measurable effect, but not as strong as the straight apple
  • could either be because there are other things in the apple that could contribute to the effect, or, in some cases, these bioactive compounds seem to get absorbed better when they're consumed in foods
  • eating apples had some effects on antioxidants in saliva, which has implications for dental health
Mars Base

Year-Long Missions Could Be Added to Space Station Manifest - 0 views

www.universetoday.com/...dded-to-space-station-manifest

scibyte66 iss

shared by Mars Base on 03 Oct 12 - No Cached
  • announced an agreement to send two crew members to the International Space Station on a one-year mission
  • designed to collect valuable scientific data needed to send humans to new destinations in the solar system
  • (10/5/12
  • ...5 more annotations...
  • NASA announced
  • the international partners
  • one American astronaut and one Russian cosmonaut
  • are scheduled to begin their voyage in spring 2015
  • “If the mission proves to be effective, we will discuss sending year-long missions to ISS on a permanent basis
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