The float-and-sink method helps in separating coal samples according to the difference in their respective specific gravities in a heavy liquid medium. This heavy fluid separation method is independent of the particle size and only a function of the difference in the densities of two substances.

Why? Since mineral matter and pyrite (Fool’s gold) are more dense than salt water, they fall to the bottom of the solution. Less dense particles (clean coal) will float.

The majority of coal cleaning processes use upward currents or pulses of a fluid such as water to fluidize a bed of crushed coal and impurities. The lighter coal particles rise and are removed from the top of the bed. The heavier impurities are removed from the bottom.

If you are using a card, crumpled piece of paper, or a dollar you can transfer the string from your finger to the object as you explain that you can make the object levitate. If you are levitating a crumpled up object such as paper or a dollar, Crumple the object around the string and adhesive. Then remove your finger.

Normal things, even humans, can levitate if they are placed in a strong magnetic field. Although the majority of ordinary materials, such as wood or plastic, seem to be non-magnetic, they all exhibit very weak diamagnetism. Such materials can be levitated using magnetic fields of about 10 Tesla.

How Do You Float on Sound?

1. Set up a standing wave.
2. Place an object such that the pressure below the object is greater than the pressure below it.
3. Make sure the object isn’t so big that it extends into another pressure compression area (that could exert a downward force).

Electrostatic levitation is the process of using an electric field to levitate a charged object and counteract the effects of gravity. Due to Earnshaw’s theorem, no static arrangement of classical electrostatic fields can be used to stably levitate a point charge.

Scientists have been able to use the power of sound to levitate small items — including insects and fish — for decades. But if the intensity is cranked up high enough, sound has the ability to counteract the effects of gravity. …

Levitation or transvection in the paranormal context is the rising of a human body and other objects into the air by mystical means or meditation. Some parapsychology and religious believers interpret alleged instances of levitation as the result of supernatural action of psychic power or spiritual energy.

Christianity. The ability to levitate was attributed to figures in Early Christianity. The apocryphal Acts of Peter gives a legendary tale of Simon Magus’ death. Simon is performing magic in the Roman Forum, and in order to prove himself to be a god, he flies up into the air.

intransitive verb. : to rise or float in or as if in the air especially in seeming defiance of gravitation.

1 : a personal magic of leadership arousing special popular loyalty or enthusiasm for a public figure (such as a political leader) His success was largely due to his charisma. 2 : a special magnetic charm or appeal the charisma of a popular actor.

(Entry 1 of 4) 1a : a lever or wheel controlling the rudder of a ship for steering broadly : the entire apparatus for steering a ship. b : position of the helm with respect to the amidships position turn the helm hard alee.

1 : an increase in amount, number, or volume a rise in prices. 2 : upward movement the rise and fall of waves. 3 : the act of gaining a higher rank or position a rise to power. 4 : beginning sense 1, origin the rise of democracy. 5 : an upward slope.

intransitive verb

transitive verb. : to make better or more tolerable medicine to ameliorate the pain. intransitive verb.