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Mars Base

Buddhist statue, discovered by Nazi expedition, is made of meteorite, new study reveals - 0 views

phys.org/...ue-nazi-meteorite-reveals.html

scibyte65 meteorite

shared by Mars Base on 27 Sep 12 - No Cached
  • a 1,000 year-old ancient Buddhist statue which was first recovered by a Nazi expedition in 1938 has been analysed by scientists and has been found to be carved from a meteorite
  • statue, known as the Iron Man, weighs 10kg and is believed to represent a stylistic hybrid between the Buddhist and pre-Buddhist Bon culture
  • discovered in 1938 by an expedition of German scientists
  • ...10 more annotations...
  • expedition was supported by Nazi SS Chief Heinrich Himmler and the entire expeditionary team were believed to have been SS members.
  • unknown how the statue was discovered
  • believed that the large swastika carved into the centre of the figure may have encouraged the team to take it back to Germany
  • only became available for study following an auction in 2007.
  • first team to study the origins of the statue
  • The team was able to classify it as an ataxite
  • a rare class of iron meteorite with high contents of nickel.
  • statue was chiseled from a fragment of the Chinga meteorite which crashed into the border areas between Mongolia and Siberia about 15,000 years ago
  • first debris was officially discovered in 1913 by gold prospectors
  • believe that this individual meteorite fragment was collected many centuries before
Mars Base

Sumatra quake was part of crustal plate breakup: Study shows huge jolt measured 8.7, ri... - 0 views

phys.org/...ake-crustal-plate-breakup.html

scibyte65 TectonicPlate

shared by Mars Base on 27 Sep 12 - No Cached
  • Seismologists have known for years that the Indo-Australian plate of Earth's crust is slowly breaking apart
  • quake was caused by at least four undersea fault ruptures
  • within a 2-minute, 40-second period
  • ...27 more annotations...
  • This is part of the messy business of breaking up a plate. … This is a geologic process
  • will take millions of years to form a new plate boundary
  • likely, it will take thousands of similar large quakes for that to happen."
  • All four faults
  • were strike-slip faults, meaning ground on one side of the fault moves horizontally past ground on the other side
  • great quake of last April 11 "is possibly the largest strike-slip earthquake ever seismically recorded
  • although a similar size quake in Tibet in 1950 was of an unknown type
  • 2012 quakes likely were triggered, at least in part, by changes in crustal stresses caused by the magnitude-9.1 Sumatra-Andaman earthquake of Dec. 26, 2004
  • the 8.7 and 8.2 quakes were generated by horizontal movements
  • not by vertical motion
  • explains why they didn't generate major tsunamis
  • 8.7 quake caused small tsunamis, the largest of which measured about 12 inches in height at Meulaboh, Indonesia
  • Indo-Australian plate is breaking into two or perhaps three pieces
  • happening because it is colliding with Asia in the northwest, which slows down the western part of the plate, while the eastern part of the plate continues moving more easily by diving or "subducting" under the island of Sumatra to the northeast
  • subduction zone off Sumatra caused the catastrophic 2004 magnitude-9.1 quake and tsunami
  • ruptured along a roughly 90-mile length
  • seafloor on one side of the fault slipped about 100 feet past the seafloor on the fault's other side
  • second fault, which slipped about 25 feet, began to rupture 40 seconds after
  • extended an estimated 60 miles to 120 miles north-northeast to south-southwest – perpendicular to the first fault and crossing it.
  • third fault was parallel to the first fault and about 90 to the miles southwest
  • started breaking 70 seconds after the quake began
  • along a length of about 90 miles
  • slipped about 70 feet
  • The fourth fault paralleled the first and third faults
  • began to rupture 145 seconds after the quake began
  • fault rupture was roughly 30 miles to 60 miles long.
  • fault slipped about 20 feet past ground on the other side
Mars Base

Google Lat Long: Dive into the Great Barrier Reef with the first underwater imagery in ... - 0 views

google-latlong.blogspot.in/...t-barrier-reef-with-first.html

scibyte65 GoogleMap

shared by Mars Base on 27 Sep 12 - No Cached
  • experience six of the ocean’s most incredible living coral reefs
  • sea turtle swimming among a school of fish
  • follow a manta ray
  • ...3 more annotations...
  • experience the reef at sunset
  • see an ancient boulder coral, which may be several hundred years old
  • drift over the vast coral reef at Maui's Molokini crater
Mars Base

Red Bull Stratos Targets Oct. 8 for Record-Setting Freefall Attempt - 0 views

www.universetoday.com/...ecord-setting-freefall-attempt

scibyte64 RedBullStratos

shared by Mars Base on 26 Sep 12 - No Cached
  • Mars Base on 26 Sep 12
     
    person to break the sound barrier, alone
Mars Base

Dazzling Meteor Fireball Lights Up UK Night Sky | Space.com - 0 views

www.space.com/ball-video-united-kingdom.html

scibyte64 meteorite

shared by Mars Base on 25 Sep 12 - No Cached
  • A spectacular meteor wowed stargazers across the United Kingdom Friday (Sept. 21) when it flared up and shattered into piece
  • spotted by observers across Scotland and northern England as well as Ireland
  • Many observers captured views of the meteor on camera
  • ...9 more annotations...
  • video of the Sept. 21 meteor shows what appears to be a fireball created as a small space rock breaks apart in Earth's atmosphere. Pieces of the meteor can easily be seen separating from the main body in his view
  • many witnesses to wonder if it was sparked by a man-made piece of space junk falling out of orbit
  • experts have conclusively tied the event to a naturally occurring space rock burning up in Earth's atmosphere
  • Veteran satellite tracker Marco Langbroe
  • the fireball was definitely a meteor.
  • sighting reports to determine the fireball's trajectory and studied videos posted by witnesses to determine how long it lasted
  • ack-of-the-envelope reconstruction therefore shows that this must have been a meteoric fireball, quite likely of asteroidal origin, and we definitely can exclude a satellite re-entry
  • meteor in space is called a meteoroid. Only when it flares up in the night sky does it become a meteor. Any remains of the object that reach the ground, meanwhile, are called meteorites
  • Earlier this year, a rare daytime fireball surprised U.S. observers in California and Nevada when it unleashed a sonic boom that some mistook for a small earthquake. The meteor was caused by a minivan-size asteroid and created several meteorites that NASA retrieved in a follow-up search
Mars Base

Mars Exploration Rover Mission: The Mission - 0 views

marsrover.nasa.gov/...status.html

scibyte67 opportunity

shared by Mars Base on 13 Oct 12 - No Cached
  • Opportunity is conducting
  • science campaign at a location where orbital observations show the presence of clay minerals
  • rover is positioning near a large, light-toned block of exposed rock outcrop, called "Whitewater Lake."
  • ...5 more annotations...
  • Sol 3092 (Oct. 4, 2012), the rover moved, likely the smallest amount ever, with less than an inch (1 centimeter) of total motion in order to position the robotic arm favorable on a dark-rind surface target
  • n Sol 3094 (Oct. 6, 2012), Opportunity performed a 15-minute brush of a surface target with the Rock Abrasion Tool (RAT)
  • followed with the collection of a Microscopic Imager (MI) mosaic
  • then the placement of the Alpha Particle X-ray Spectrometer (APXS) for an overnight integration
  • Total odometry is 21.78 miles (35,050.07 meters)
Mars Base

Frenchman, American win Nobel for quantum physics (Update 6) - 0 views

phys.org/...eland-nobel-physics-prize.html

scibyte67 Nobel

shared by Mars Base on 13 Oct 12 - No Cached
  • American physicist David Wineland
  • and French physicist Serge Haroche speaks to the media in Paris after they were named winners of the 2012 Nobel Prize in physics.
  • for experiments on quantum particles that have already resulted in ultra-precise clocks and may one day help lead to computers many times faster than those in use today.
  • ...7 more annotations...
  • A Frenchman and an American shared the Nobel Prize in physics Tuesday for inventing methods to peer into the bizarre quantum world of ultra-tiny particles, work that could help in creating a new generation of super-fast computers
  • quantum computers could radically change people's lives in the way that classical computers did last century, but a full-scale quantum computer is still decades away
  • in a quantum computer, an individual particle can essentially represent a zero and a one at the same time
  • If scientists can make such particles work together, certain kinds of calculations could be done with blazing speed.
  • The prizes are always handed out on Dec. 10, the anniversary of prize founder Alfred Nobel's death in 1896.
  • 2012: Serge Haroche of France and David Wineland of the U.S. for "for ground-breaking experimental methods" that enable measuring and manipulation of individual quantum systems
  • 2011: American physicist Saul Perlmutter, U.S.-Australian researcher Brian Schmidt and American professor Adam Riess "for the discovery of the accelerating expansion of the Universe through observations of distant supernovae."
Mars Base

Mars Science Laboratory: Mars Rock Touched By NASA Curiosity Has Surprises - 0 views

mars.jpl.nasa.gov/...index.cfm

scibyte67 Curiosity

shared by Mars Base on 15 Oct 12 - No Cached
  • The first Martian rock NASA's Curiosity rover has reached out to touch presents a more varied composition than expected from previous missions
  • On Earth, rocks with composition like the Jake rock typically come from processes in the planet's mantle beneath the crust, from crystallization of relatively water-rich magma at elevated pressure.
  • elements
Mars Base

Potent antibodies neutralize HIV and could offer new therapy, study finds - 0 views

medicalxpress.com/...es-neutralize-hiv-therapy.html

scibyte72 HIV

shared by Mars Base on 14 Nov 12 - No Cached
  • Michel Nussenzweig's Laboratory of Molecular Immunology found that a combination of five different antibodies
  • effectively suppressed HIV-1 replication and kept the virus at bay for a 60 day period after termination of therapy
  • longer half-life
  • ...13 more annotations...
  • current antiretroviral drugs require daily intake.
  • These especially potent antibodies were only recently discovered
  • identified and cloned from HIV-infected patients whose immune systems showed an unusually high ability to neutralize HIV
  • Antibodies had been written off as a treatment for HIV/AIDS because previous studies showed only a limited effect on controlling the virus
  • before these more potent antibodies were discovered
  • HIV-1 is notorious for evading the immune system's attacks by constantly mutating
  • antibodies target HIV-1's surface protein gp160, a large molecule that forms a spike that seeks out host cells and attaches to them
  • One antibody alone wasn't enough to quell the virus; neither was a mix of three
  • five of them in unison proved too complicated for gp160 to mutate its way out of.
  • Although HIV-1 infection in humanized mice differs in many important aspects from infection in humans, the results are encouraging to investigate these antibodies in clinical trials
  • It also may be that a combination of antibodies and the already established antiretroviral therapy is more efficacious than either alone
  • could be used as a treatment one day, it is conceivable that patients would only need to take traditional drugs until the virus is controlled
  • then receive antibodies every two to three months to maintain that control
Mars Base

Curiosity team switches back to Earth time - 0 views

phys.org/...2-11-curiosity-team-earth.html

scibyte70 Curiosity

shared by Mars Base on 14 Nov 12 - No Cached
  • After three months working on "Mars time," the team operating NASA Mars rover Curiosity has switched to more regular hours, as planned
  • A Martian day, called a sol, is about 40 minutes longer than an Earth day, so the team's start time for daily planning has been moving a few hours later each week
  • at operations." A simultaneous change this
  • ...3 more annotations...
  • . More than 200 non-JPL scientists who have spent some time working at JPL since Curiosity's landing
  • will continue participating regularly from their home institutions throughout North America and Europe
  • The team has been preparing in recent weeks to use dispersed participation teleconferences and Web connections.
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