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>> ^Yogi:

According to Qi, this is Bullshit. You're not in any danger while in a vacuum you simply can't breathe so you have to keep holding your breath. If you exhale though something happens where you lose control of all your orifices at once and start "ejecting" everything out of everywhere.


You definitely do not want to hold your breath if you lose pressure. It would be like diving to 33ft (1 atmosphere), taking a breath from a SCUBA tank, holding it and ascending. The pressurized air in your lungs would expand as the pressure on your body decreases causing your lungs to pop.

According to scientific study, QI is bullshit. You'll pass out in 10 or so seconds in a vacuum, and it's really hard to hold your breath when you're not conscious. Not that it matters, because I doubt any of the rest of that is true either. You've got about 90 seconds to be repressurized before irreversible damage is done.

Boiling saliva makes sense since the boiling point decreases along with atmospheric pressure. There's a myth that your blood will boil but your blood is independently pressurized by your heart, arteries and veins, so the loss of atmospheric pressure won't really have a direct effect on your blood pressure. I'm guessing if I was suddenly sucked out into space, my blood pressure would probably rise on account of the panic attack I'd be having. Of course, that wouldn't last long either.

A vacuum is perfect insulator, so freezing to death shouldn't be a significant concern.

http://en.wikipedia.org/wiki/Space_exposure

>> ^Yogi:

According to Qi, this is Bullshit. You're not in any danger while in a vacuum you simply can't breathe so you have to keep holding your breath. If you exhale though something happens where you lose control of all your orifices at once and start "ejecting" everything out of everywhere.

Tags for this video have been changed from 'Vacuum, space' to 'Vacuum, space, jim leblanc, astronaut, space suit' - edited by kronosposeidon

Your video, Space Suit Test Failure - Man Exposed to Total Vacuum, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

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Wasn't going to upvote but I loughlled at her space suit. I gotta admit that was pretty funny.

Her next dramatic roll could be in He-Man as Skeletor.

More from the "Moon Machines" series.
http://www.videosift.com/video/Moon-Machines-Space-Suits-1-5
http://www.videosift.com/video/Moon-Machines-Command-Module
http://www.videosift.com/video/Moon-Machines-Saturn-V-1-5
http://www.videosift.com/video/Moon-Machines-The-Navigation-Computer-1-5
http://www.videosift.com/video/Moon-Machines-Lunar-Rover-1-5
*Engineering

could you please explain or tell me where I can see explained, why it would not just go into an elliptical orbit instead? Keep in mind you are in a space suit outside the spacestation and can only throw about 30 miles per hour or so. What about if you throw an object straight "up" while in orbit? My guess is the result would be the same.

In reply to this comment by rgroom1:
When an object is in orbit, it is already in free-fall, but the centripetal force going up is equaled by the force of gravity going down. If you chuck something down, it will continue that way until it hits the ground.

In reply to this comment by GabaJ:
>> ^bamdrew:
some day I'd like to be hurtling through the vacuum of space and just full-on chuck something down at Earth.


I have a question for the physicists - what would happen to an object thrown perpendicular to your orbit down toward earth? Disregard atmospheric drag. After one orbit, would that object come back up towards you as fast as you chucked it?

In reply to this comment by rychan:
>> ^GabaJ:
I have a question for the physicists - what would happen to an object thrown perpendicular to your orbit down toward earth? Disregard atmospheric drag. After one orbit, would that object come back up towards you as fast as you chucked it?


Good question.

Assumption: you don't throw it far enough towards Earth for atmospheric drag to matter, and you are more massive than the object.

my answer: I don't think so, and it's not a simple matter. Lets say you were in a perfectly circular orbit. You throw the object down and now it's in an eccentric orbit (and so are you, for that matter). It no longer has the same orbital period as you, because it has a longer semi-major axis (http://en.wikipedia.org/wiki/Semi-major_axis) which means it has a slower orbit (http://en.wikipedia.org/wiki/Orbital_period)

I could be wrong, though.

Thank you for your thoughts. After additional consideration this is what I think would happen: The fastest you could throw an object while in a space suit and anchored to the space station is maybe 20 or 30 miles per hour. As you say, this would put it in an elliptical orbit. If the station orbits once every 90 minutes in a circular orbit, then the object would go straight down and a little ahead as it picks up speed, but only for about 20 some minutes and 10, 15 miles. (this is the part I can't calculate) After half an orbit it would come back up and miss you because no one could throw so accuaretly that they can hit something 30 miles away. Then after one full orbit, it would come back from "above". and so on...

Tags for this video have been changed from 'golf, golfer, astronaut, space suit, golf cart' to 'golf, golfer, astronaut, space suit, golf cart, remi gaillard' - edited by doogle

Heres a few practical benefits:

TV Satellite Dish

NASA developed ways to correct errors in the signals coming from the spacecraft. This technology is used to reduce noise (that is, messed up picture or sound) in TV signals coming from satellites.

Medical Imaging

NASA developed ways to process signals from spacecraft to produce clearer images. (See more on digital information and how spacecraft send images from space.) This technology also makes possible these photo-like images of our insides.

Vision Screening System

Uses techniques developed for processing space pictures to examine eyes of children and find out quickly if they have any vision problems. The child doesn't have to say a word!

Ear Thermometer

Instead of measuring temperature using a column of mercury (which expands as it heats up), this thermometer has a lens like a camera and detects infrared energy, which we feel as heat. The warmer something is (like your body), the more infrared energy it puts out. This technology was originally developed to detect the birth of stars.

Fire Fighter Equipment

Fire fighters wear suits made of fire resistant fabric developed for use in space suits.

Smoke Detector

First used in the Earth orbiting space station called Skylab (launched back in 1973) to help detect any toxic vapors. Now used in most homes and other buildings to warn people of fire.

Sun Tiger Glasses

From research done on materials to protect the eyes of welders working on spacecraft, protective lenses were developed that block almost all the wavelengths of radiation that might harm the eyes, while letting through all the useful wavelengths that let us see.

Automobile Design Tools

A computer program developed by NASA to analyze a spacecraft or airplane design and predict how parts will perform is now used to help design automobiles. This kind of software can save car makers a lot of money by letting them see how well a design will work even before they build a prototype.

Cordless Tools

Portable, self-contained power tools were originally developed to help Apollo astronauts drill for moon samples. This technology has lead to development of such tools as the cordless vacuum cleaner, power drill, shrub trimmers, and grass shears.

Aerodynamic Bicycle Wheel

A special bike wheel uses NASA research in airfoils (wings) and design software developed for the space program. The three spokes on the wheel act like wings, making the bicycle very efficient for racing.

Thermal Gloves and Boots

These gloves and boots have heating elements that run on rechargeable batteries worn on the inside wrist of the gloves or embedded in the sole of the ski boot. This technology was adapted from a spacesuit design for the Apollo astronauts.

Space Pens

The Fisher Space Pen was developed for use in space. Most pens depend on gravity to make the ink flow into the ball point. For this space pen, the ink cartridge contains pressured gas to push the ink toward the ball point. That means, you can lie in bed and write upside down with this pen! Also, it uses a special ink that works in very hot and very cold environments.

Shock Absorbing Helmets

These special football helmets use a padding of Temper Foam, a shock absorbing material first developed for use in aircraft seats. These helmets have three times the shock absorbing ability of previous types.

Ski Boots

These ski boots use accordion-like folds, similar to the design of space suits, to allow the boot to flex without distortion, yet still give support and control for precision skiing.

Failsafe Flashlight

This flashlight uses NASA's concept of system redundancy, which is always having a backup for the parts of the spacecraft with the most important jobs. This flashlight has an extra-bright primary bulb and an independent backup system that has its own separate lithium battery (also a NASA developed technology) and its own bulb.

Invisible Braces

These teeth-straightening braces use brackets that are made of a nearly invisible translucent (almost see-through) ceramic material. This material is a spinoff of NASA's advanced ceramic research to develop new, tough materials for spacecraft and aircraft.

Edible Toothpaste

This is a special foamless toothpaste developed for the astronauts to use in space (where spitting is not a very good idea!) Although this would be a great first toothpaste for small children, it is no longer available.

Joystick Controllers

Joystick controllers are used for lots of things now, including computer games and vehicles for people with disabilities. These devices evolved from research to develop a controller for the Apollo Lunar Rover, and from other NASA research into how humans actually operate (called "human factors").

Advanced Plastics

Spacecraft and other electronics need very special, low-cost materials as the base for printed circuits (like those inside your computer). Some of these "liquid crystal polymers" have turned out to be very good, low-cost materials for making containers for foods and beverages.

This reminds me of Forrest Gump movie.

However, being on the moon is wrong and that's not on Earth. You die without a space suit roo.

i'm guessing it is an homage to Barbarella
http://www.videosift.com/video/Barbarella-Opener-Jane-Fonda-taking-off-her-space-suit

This is a classic piece of science fiction. If you can suspend disbelief long enough to get past the beach ball alien, and the muffin tin space suits, it's brilliant.

THIS is a movie that ought to be remade with current tech.