float in mid-air. To do this without microgravity (which is a misnomer by the way) you would have to jump really high and probably hurt yourself.
if you toss a coin in the air you are subjecting that coin to microgravity. When an experiment is in a NASA Glenn Research Center drop tower, the experiment is subjected to microgravity for about 2 or 5 seconds. When experiments and/or people are flown on a parabolic-trajectory aircraft, they experience a microgravity environment also. When astronauts, cosmonauts, and experiments are on the Int'l Space Station, they also experience a microgravity environment. All three effects are due to a condition of free fall, where the only significant force upon the person or experiment is gravity. The only real difference between the three conditions is the horizontal velocity and altitude.
The cast of MicroGravity - 2005 includes: Anne Cabrera Bill Cabrera
Washito A. Sasamoto has written: 'Utilization of the Spacehab module as a microgravity carrier' -- subject(s): Space shuttle payloads, Microgravity, Modules, Microgravity applications, Active control
S. S. Sadhal has written: 'Microgravity Transport Processes in Fluid, Thermal, Biological, and Materials Sciences' 'Microgravity Transport Processes in Fluid, Thermal, Biological, and Materials Sciences' 'Heat Transfer in Microgravity Systems, 1994' 'Transport Phenomena in Microgravity'
Some challenges astronauts face in a microgravity environment include muscle atrophy and bone density loss due to lack of weight-bearing exercise, fluid redistribution leading to changes in blood pressure and vision, and the potential for motion sickness. They also must adapt to eating, sleeping, and performing everyday tasks in a weightless environment.
The cast of Microgravity - 2006 includes: Tarika as Eniko Tarika Brandt as Eniko
microgravity
If your "microgravity environment" is the inside of, say, an orbiting space station then the apple would very slowly move aft (retrograde) and "up" (towards the interior surface furthest from the Earth) as the station's orbit slowly decayed due to friction with the atmosphere. If it were an atmosphere-less planet or celestial body, like the moon, and you let go of an object which was previously in a stable orbit it would stay in a stable orbit. Keep in mind that an orbit is a combination of tangential velocity and "falling" towards the planet at the appropriately balanced ratio to keep a constant distance from the orbited body. For an arbitrary microgravity environment, the apple would continue with whatever relative velocity it had when you let go of it.
A spacewalk is kind of a misnomer, no one is actually walking. In a microgravity environment, walking is impossible/ pointless. A better term to use is "extravehicular activity" or EVA.
Microgravity - 2006 was released on: USA: 4 February 2006 (Science Fiction Short Film Festival)
Examples of experiments conducted on the International Space Station (ISS) include studies on the effects of microgravity on the human body, plant growth in space, combustion in microgravity, and the behavior of fluids in space. Researchers utilize the unique environment of the ISS to gain insights into various scientific phenomena that cannot be replicated on Earth.