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Gases at high pressure can have a density exceeding that of some solids. Thus they can be used to levitate solid objects through buoyancy. [5] Noble gases are preferred for their non-reactivity. Xenon is the densest non-radioactive noble gas, at 5.894g/L. Xenon has been used to levitate polyethylene, at a pressure of 154atm.
Magnetic levitation can be stabilised using different techniques; here rotation (spin) is used. Magnetic levitation (maglev) or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields.
Electrostatic levitation is the process of using an electric field to levitate a charged object and counteract the effects of gravity. It was used, for instance, in Robert Millikan's oil drop experiment and is used to suspend the gyroscopes in Gravity Probe B during launch.
In Asrah levitation, an assistant lies down and is fully covered with a cloth. The assistant then appears to levitate beneath the cloth, before slowly floating down. As the magician pulls the cloth away, the assistant is seen to have vanished. The trick uses a structure of thin wire that is placed over the assistant at the same time as the cloth.
Samuel Earnshaw was the one to discover in 1839 that “a charged body placed in an electrostatic field cannot levitate at stable equilibrium under the influence of electric forces alone”. [1] Likewise, due to limitations on permittivity , stable suspension or levitation cannot be achieved in a static magnetic field with a system of permanent ...
Levitation or transvection, in the paranormal or religious context, is the claimed ability to raise a human body or other object into the air by mystical means.. While believed in some religious and New Age communities to occur due to supernatural, miraculous, psychic, or "energetic" phenomena, there is no scientific evidence of levitation occurring.
Aerodynamic levitation is the use of gas pressure to levitate materials so that they are no longer in physical contact with any container. In scientific experiments this removes contamination and nucleation issues associated with physical contact with a container.
This method is harder to control than others such as electromagnetic levitation but has the advantage of being able to levitate nonconducting materials. Although originally static, acoustic levitation has progressed from motionless levitation to dynamic control of hovering objects, an ability useful in the pharmaceutical and electronics industries.