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Mars Base

Astronauts Hail Skydiver Felix Baumgartner's Record-Breaking Supersonic Jump | Space.com - 0 views

www.space.com/eaction-felix-baumgartner.html

scibyte67 RedBullStratos

shared by Mars Base on 15 Oct 12 - No Cached
  • " I didn't feel a sonic boom because I was so busy just trying to stabilize myself,"
  • went into a tough spin at the jump's beginning. "It was really a lot harder than I thought it was going to be.
  • Several NASA and ESA astronauts
  • ...1 more annotation...
  • noted that the skydiver was the fourth-highest person near Earth, beat only by the three astronauts living on the International Space Station,
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

Record-Breaking Supersonic Skydive Attempt Delayed to Tuesday | Space.com - 0 views

www.space.com/nic-skydive-attempt-delay.html

scibyte66 RedBullStratos

shared by Mars Base on 06 Oct 12 - No Cached
  • an incoming cold front is expected to bring cooler temperatures, strong winds and a bit of rain to the launch site on Monday
Mars Base

How Supersonic Skydiver Will Freefall Through Earth's Atmosphere | Felix Baumgartner Sp... - 0 views

www.space.com/-skydive-earth-atmosphere.html

scibyte66 RedBullStratos

shared by Mars Base on 06 Oct 12 - No Cached
  • Earth's atmosphere starts 430 miles (690 kilometers) up.
  • upper boundary of the thermosphere, the outermost layer of the atmosphere
  • Solar radiation bombards this layer, striking its sparse air molecules and causing them to emit flashes of light: the auroras
  • ...6 more annotations...
  • altitude of 53 miles (85 km), the thermosphere transitions into the mesosphere, an atmospheric layer known for its faint clouds, as well as electrical discharge events called red sprites and blue jets.
  • e stratosphere extends from an altitude of 6 miles (10 kilometers) up to about 30 miles (50 km) above the surface. The air pressure drops from 10 percent of its value at sea level to just 0.1 percent
  • , unlike in the layers above and below, absorption of ultraviolet sunlight by ozone causes the temperature to increase as you move up in altitude
  • coupling of temperature with altitude prevents convection from happening, and so the air in this layer is dynamically stable.
  • troposphere, which includes everything from an altitude of 6 miles down over most of Eart
  • re all weather happens, as well as longer-term processes such as the jet stream. In this layer, temperature and pressure both drop as you move up in altitude
Mars Base

Supersonic Skydive's 5 Biggest Risks: Boiling Blood, Deadly Spins, and Worse - 0 views

news.nationalgeographic.com/...sound-barrier-joseph-kittinger

scibyte66 RedBullStratos

shared by Mars Base on 06 Oct 12 - No Cached
  • history's largest helium balloon—55 stories tall and as wide as a football field
  • s team estimates the Austrian sky diver and helicopter pilot will reach Mach 1.2—roughly 690 miles (1,110 kilometers) an hour
  • Originally scheduled for Monday but postponed due to projected high winds
  • ...15 more annotations...
  • atmosphere above 12 miles, or 63,000 feet (19,200 meters)
  • is so thin that, if not protected, human blood will literally boil
  • , Baumgartner's airtight suit and the capsule around him will be continuously pressurized to create a personal atmosphere that isolates him from the void surrounding him
  • The smallest crack in this protective layer would cause almost immediate death
  • It is assumed this is what occurred on previous attempts to break Kittinger's record. Russian Pyotr Dolgov (1962) and American Nick Piantanida (1966) both died, most likely due to depressurization at extreme altitude
  • Baumgartner's balloon will be stressed by the cold, constructed as it is from plastic film just 0.0008 inch (0.02 millimeter) thick, to optimize weight-to-lift ratio
  • his balloon and capsule will pass through an atmospheric layer called the tropopause
  • Wind Could Blow Baumgartner off Course
  • Baumgartner Could Spin Uncontrollably, Even Fatally
  • flat-spin risk can be mediated with a technology first developed for Kittinger: a stabilization parachute to prevent further increase in rotation, deployed on command, or automatically if -3.5 G's are achieved.
  • Baumgartner has his eyes on a new speed record
  • won't open automatically
  • he will assume a rigid aerodynamic body position for the entire free fall—head first, arms at sides—and hope for the best.
  • Sonic Boom Could Do Unknown Damage
  • If Baumgartner becomes the first human to achieve supersonic speed with just his body—and without breaking his body—he will break new scientific ground.
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