Weightlessness

Contest Info

  • Started: 4/26/2007 06:00
  • Ended: 4/28/2007 06:00
  • Level: advanced
  • Entries: 15
  • Jackpot:
  • FN Advanced 1st Place $5
  • FN Advanced 2nd Place $3
  • FN Advanced 3rd Place $2
Weightlessness
Contest Directions: Professor Stephen Hawking is about to experience zero gravity in a special plane. During 25 seconds Hawking will feel completely weightless. Just like Nicole Richie.
In this contest you are asked to photoshop objects, animals, or people in the state of zero gravity, weightlessness, or levitation. Feel free to use photos or works of art as the sources.

Contest Info

    • Started: 4/26/2007 06:00
    • Ended: 4/28/2007 06:00
    • Level: advanced
    • Entries: 15
    • Jackpot:
    • FN Advanced 1st Place $5
    • FN Advanced 2nd Place $3
    • FN Advanced 3rd Place $2
This gallery only contains our top 10 selections from its parent contest Weightlessness. All 15 contest pictures can be viewed here.
  • Cat Playing with Floating Goldfish

    Cat Playing with Floating Goldfish
  • Man Levitating Off a Horse Painting

    Man Levitating Off a Horse Painting
  • Stephen Hawking in Space

    Stephen Hawking in Space
  • Dorothy Floating in the Sky in Oz

    Dorothy Floating in the Sky in Oz
  • Tower Bridge Zero Gravity

    Tower Bridge Zero Gravity
  • Weightless Volkswagon Beetle

    Weightless Volkswagon Beetle
  • Floating Starfish

    Floating Starfish
  • Levitating Woman Doing Yoga

    Levitating Woman Doing Yoga
  • Man Levitating Whilst Meditiating

    Man Levitating Whilst Meditiating
  • Zero Gravity 100 Dollar Bill

    Zero Gravity 100 Dollar Bill
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This contest is fueled by the following news: The British Scientist Stephen Hawking is scheduled for a zero gravity flight. The specially modified Boeing 747 will take a parabolic plunge over the Atlantic Ocean during which, the physicist will experience s 25 second state of weightlessness. The normal charge for such a no gravity dive is about four thousand dollars, but the company said they are going to waive the fee for Mr. Hawking. "It's a privilege to have him on board," said the CEO of US based Zero Gravity corporation which will be conducting the flight. The plane will take off and land at the NASA Kennedy Space Center in Florida, and two doctors and three nurses will be accompanying the British scientist to make sure he does not suffer any negative health effects during the zero gravity flight. Hawking said he is looking forward to this experience. "For someone like me with weak muscles and a wheelchair, it'll be a true privilege to experience zero gravity. There's a second reason I want to do it too. I always wanted to go into space, and have been fascinated by space since my young years. This is my first step of going into space and I have reserved a place on a scheduled sub-orbital flight in 2009. Humans will not survive if they do not break into space. Such zero gravity flights help us realize there are forces of nature we can beat with technology and science." Stephen Hawking has been regarded as one of the greatest physicists of the last century, and his works include books on the formation of the universe and black holes. Weightlessness has been his recent passion. According to him it may become more of a hobby, if he gets the hang of it. The zero gravity flight is scheduled for this Thursday. Weightlessness (also known as zero gravity) - is a condition, when the interaction force of the body with support is absent (the apparent weight of the body), which occurs due to gravitational attraction and under the effect of other body forces, particularly inertia, arising at the accelerated motion of body. Sometimes, it is possible to come across another synonym of this effect micro gravitation - but this synonym is incorrect! Gravitation (the attracting force) remains the same. The weightlessness condition is illustrated by the situation arising in a falling lift. Its passengers are in free fall exactly the same way as the lift itself. Hence, they do not act on the lift's floor and can freely soar in the lift till they reach the bottom of the lift's shaft. Launched into an orbit around the Earth, the space vehicle is constantly in a falling condition, i.e. the complete similarity with falling lift. However, falling to Earth, the space vehicle constantly "misses" and without reaching the Earth's surface, it moves in orbit around the Earth. Quite frequently, the disappearance of weight is misinterpreted with the disappearance of gravitational attraction. But, it is not so. As an example, it is possible to state a situation on the International Space Station. At an altitude of 350 km (an altitude at which the station is positioned), free fall acceleration is 8.8 m/sec2, which is only 10% less than the value on the surface of the Earth. The zero gravity condition on the International Space Station arises due to the motion along the circular orbit with orbital velocity. On Earth, the weightlessness condition is created in experimental purposes for a short-period (up to 30 sec) during the flights of aircraft along parabolic trajectories (but actually - ballistic, i.e. along which the aircraft would have flied under the influence of only the Earth's gravitational force; this trajectory is parabola only at lesser velocities; for satellites, it is an ellipse, circle or hyperbola). The weightlessness condition can be felt during the initial moment of the free fall of a body in atmosphere, when the resistance of air is still insignificant. For understanding the essence of weightlessness, it is possible to study aircraft, flying along the ballistic trajectory. Ballistics trajectories are used for training the cosmonauts in Russia and the USA. A lead weight is suspended in the pilot's cabin using a thread and the lead weight usually pulls down the thread (if the aircraft is resting or moves uniformly and rectilinear) It is evident, that if suddenly the thread to which the ball is hung is not stretched down it indicates the weightlessness condition. Thus, the pilot should operate the aircraft such that the ball "hangs in the air". For this sake, the aircraft should only have an acceleration downwards. Thus, the entire aircraft "falls" together with the ball, thread, pilot and cosmonauts; the released body shall fall together with all i.e , should not fall with respect to any of them. Dynamic weightlessness arises sometimes even on Earth. Weightless, for example, are the swimmers-divers, diving into waters from a rig. Skiers are also weightless for few seconds while jumping from a springboard. Parachutists, jumping from a rock, are also weightless till they open the parachute. While imparting training to astronauts, the weightlessness condition is created in the aircraft for 30-40 seconds. For this, the pilot makes a "back fall". The pilot accelerates the aircraft, steeply takes-off upwards and switches-off the motor. The aircraft flies by inertia a stone thrown by a hand. At first, the aircraft rises a bit and then makes an arc turning downwards. The aircraft dives towards Earth. All this time, the aircraft is considered to be in a free-fall state. And all this time, the real weightlessness condition reigns in the cabin. Once again the pilot turns-on the motor and carefully brings back the aircraft from swooping into a normal horizontal flight. Weightlessness is a condition of the body, when the gravitational force acts upon it, and the external gravitational field does not cause pressure of one part of the system upon another and their deformation. In a weightless condition, the metabolism and blood circulation of the living organism changes slightly. Weightlessness occurs during free fall of the body and in spaceships, when they move with switched-off engines.
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