Monday, April 4, 2005

Optical Illusion No Longer

It wasn't too long ago that this picture would have been an optical illusion. This type of space walk (untethered) was unheard of when President Reagan was elected in 1980.

This photo is the "Astronomy Picture of the Day" for March 22, 2005.

See Explanation.  Clicking on the picture will download  the highest resolution version available.
To Fly Free in Space
Credit: STS-41B, NASA

Explanation: At about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was further out than anyone had ever been before. Guided by a Manned Maneuvering Unit (MMU), astronaut McCandless, pictured above, was floating free in space. McCandless and fellow NASA astronaut Robert Stewart were the first to experience such an "untethered space walk" during Space Shuttle mission 41-B in 1984. The MMU works by shooting jets of nitrogen and has since been used to help deploy and retrieve satellites. With a mass over 140 kilograms, an MMU is heavy on Earth, but, like everything, is weightless when drifting in orbit. The MMU was replaced with the SAFER backpack propulsion unit.

0 comments:

Post a Comment

Related Posts Plugin for WordPress, Blogger...

Labels

Optical Illusion Face Pictures Tattoo Designs Man Animals Photography Hidden Moving Circle Painting Funny Girl Sexy Rotating Confusing Sign anomalous motion Colour Escher Eye Shadow anamorphosis Tattoo Creative Julian Beever Horse videos Dog painted illusion pavement art Birds Cat Dot Square Word color perception Color Fish Real Life Illusions Water art Akiyoshi Kitaoka Ball Dragon distorted perception perspective Skull Upside Down Waterfall science illusions Hand Flowers Illusion Art Impossible Moon Photo Illusion Statue Transparent Trick Wolf Zebra amazing photos animated 3D Art 3d Car Google Earth Jesus Scary Optical Illusions Street Triangle apparent motion flash fractals Dancing Eyes Head Puzzles Reading Size Tree Women Ambiguous objects Bathroom Brain Clothes Design Elephant Ghost Heart Hidden Object Lion Nature's Illusions Naughty People Snakes Star Sun Unusual Image circles erotic illusions illusions nude illusions what do you see APOD Advertisement Ambiguous People Artist Couple Cow DIY Dimensional Drawing Expansion Floating Focus Fruit Hidden Animals Lines Love Magic Mountain Naked Nature Ring Scary Toilet ambiguous art photo shadow illusions spiral Amazing Art Black Block Boat Building Camera Dizzle Glass Invisible Jim Warren Math Illusion Posters Puzzle Screen after-image prank science size distortion trippy word illusions Adds Illusion BiCycle Devil Drinking Earthquake Effect Flag Floor Herman J. Verwaal Kanizsa illusions Light Mirror Moniter Motion Rectangle Soldier Spider Spinning Swimming Pool Trompe l'oeil Vehicle Visual Weird Wheel architecture graffiti holidays impossible construction impossible device impossible objects interactive legos scintillate sculptures Auditory Illusion Batman Beautiful Body Art Brightness Butterfly Chair Christmas Cowboy Dices Dick Great Hot Kurt Wenner Language Michael Jackson Motorbike Name Old man Opposite Parallel Possible Queen Rocket Sandro Del-Prete Sculpture Sex Taj Mahal Tessellations Top Ten Upstairs Waving Where's Waldo Window Wolves Wood brain fun cyber deceptive photos fun halloween illusion advertising money peripheral drift photograph illusions plasma recursive special effect transparent displays vanishing illusions vedio Aeroplane Alphabets Artistic Awareness Balcony Bev Doolittle Billie Joe Armstrong Binocular Blend Celebrities Optical Illusion Celebrity Coca Cola Cube D. L. Rust Elisabeth Flowing Forced Perspective Gadget Garden Guitar Home Grown Horizontal Horror Inattentional Blindness Interesting Isia Leviant Jerry Andrus Joshua Callaghan Kelly M. Houle Lava Leaning Lift Lifting Object Illusion Memories Michael Bach Motion Induced Blindness Numbers Perpetual Motion Privacy Policy Queen Elizabeth Random Restaurant Richard Gregory Roger Shepard Sand Seconds Shigeo Fukuda Singer Sketches Sleeve Face Portraits Stitches Stroop Effect Style Tarot Tesla Coil Test Tigers Tobacco University Valentine Day Special Virgin Mary What are Optical Illusions What are They Saying Wine Zodiac art installment camouflage cards change blindness depth dizzy food ghosts illusion knitting illusion of individuality introduction kaleidoscope land shark paranormal postcard saturday night live script self portrait skit upside down faces verbal wallpaper warning welcome