Q:

Who discovered plasma?

A:

Quick Answer

Plasma was first discovered by Sir William Crookes in 1879. He used an electrical discharge tube that became known as a "Crookes tube." He first labeled plasma as "radiant matter" because of its luminous quality.

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Full Answer

Plasma is the most common of the four types of matter. It comprises more than 99 percent of all matter in the universe. Plasma occurs when a state of matter contains a large amount of ionized particles and generates its own magnetic field. When under the influence of a magnetic field, it may form structures such as filaments, beams and double layers. The sun is made of plasma.

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Related Questions

  • Q:

    What is plasma when clotting proteins are removed?

    A:

    Plasma that has had its proteins removed is called serum. Serum is a source of electrolytes that is composed of proteins, minerals, carbon dioxide and hormones.

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  • Q:

    How are radio waves detected?

    A:

    Radio waves are detected using electrical circuits that receive these electromagnetic signals in an antenna, and then the radio frequencies are modulated through capacitors before emerging as sound in a speaker. Radio waves are normally less than a kilohertz long up to 20 gigahertz. Since humans cannot hear these frequencies, radio signals are often translated into sounds by electrical devices.

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  • Q:

    What causes a mirage?

    A:

    A mirage occurs when the air density difference caused by extremely hot temperatures causes photons to travel in a path other than a straight line. Hot air is less dense than cold air, so if there is a significant temperature gradient, the light reflected from an object may be refracted. This can distort the image.

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  • Q:

    What does "projectile" mean in physics?

    A:

    In physics, a projectile is an object to which some velocity is provided and is then left to move in the gravitational field under the influence of only the gravitational force. Examples of projectiles include a ball thrown by a player or hit with a baseball bat.

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