display of scientists

8/10/2019 Display of Scientists

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Display of scientists


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William Gilbert was the accredited father ofthe science of electricity and magnetism.

William Gilbert first coined the term

"electricity" from the Greek word for amber.

He was also the first person to use the terms

electric force, magnetic pole, and electric

attraction.

William Gilbert was a pioneer of the

experimental method and the first to explain

the magnetic compass.

William Gilbert


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Edison set up the first commercial

research laboratory.

He invented the first successful

incandescent electric bulb, the

phonograph, the movie projector, the

carbon telephone transmitter, andeventually held 1,093 U.S. patents.

His parallel skill at commercializing his

inventions made the wizard of Menlo

Parka wealthy man.

Edison is famous for saying, Genius is

one per cent inspiration, ninety-nine per

cent perspiration.

Thomas Alva Edison


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Nikola Tesla was born in 1856 in

Smiljan Lika, Croatia.

Tesla invented fluorescent lighting,

the Tesla induction motor, the Tesla

Coil.

He developed the alternating current

(AC) electrical supply system that

included a motor and transformer,

and 3-phase electricity.

The Tesla coil, invented in 1891, is

still used in radio and television sets

and other electronic equipment.Nikola Tesla


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Andre Marie Ampere is best known

for defining a way to measure theflow of current, which was namedafter him, the Ampere.

He also laid the foundation for thescience of electrodynamics.

He expalined a way to measure thestrength of a magnetic field inrelation to an electric current,known as Ampere's theorem.

Ampere's law is a rule that dealswith the mutual interaction ofcurrent-carrying wires.

Andre Marie Ampere


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Anders Celsius, a Swedish astronomer,

physicist and mathematician who isfamous for the temperature scale he

developed.

Celsius' fixed scale for measuring

temperature defines zero degrees as thetemperature at which water freezes, and

100 degrees as the temperature at which

water boils.

This scale, an inverted form of Celsius'original design, was adopted as the

standard and is still used in almost all

scientific work.

Anders Celsius


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Michael Faraday is a chemist and

physicist.

He isolated benzene.

He proposed two laws on

electromagnetic induction, later calledas faradayslaws.

This discovery paved the way for

changing mechanical energy into

electrical energy.

The unit for capacitance is farad,

named after him for his contribution

in science. Michael Faraday


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James Prescott Joule was Born in

Salford, England in 1818.

He stated a law, now called Joule's

Law, that heat is produced in an

electrical conductor.

The International unit of energy, the

joule, is named in his honor.

He is also one of two scientists whostated Law of conservation of

energy.

James Prescott Joule


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Georg Simon Ohm was Born inErlangen, Germany.

He discovered the mathematical lawof electric-current called "Ohm's

Law."

Simply represented as V I

The ohm, a unit of electrical

resistance, is equal to that of aconductor in which a current of oneampere is produced by a potential of

one volt across its terminals.Georg Simon Ohm


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James Clerk Maxwell, an English

scientist, developed a scientific theoryto explain electromagnetic waves.

He noticed that electrical fields and

magnetic fields can couple together to

form electromagnetic waves.

He also states that An electromagnetic

wave exists when the changing

magnetic field causes a changing

electric field, which then causes another

changing magnetic field, and so on

forever.

James Clerk Maxwell


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Charles-Augustin de Coulomb, aFrench physicist best known for theformulation of coulumbslaw.

It states that the force between twoelectrical charges is proportional to the

product of the charges and inverselyproportional to the square of thedistance between them.

Coulumbic force is one of theprincipal forces involved in atomic

reactions.

The coulomb, SI unit of electriccharge, was named after him.

Charles-Augustin de Coulomb


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Erest Warner von Siemens made

outstanding contributions to the

expansion of electrical engineering and is

therefore known as the founding father of

the discipline in Germany.

He independently discovered the

dynamo-electrical principle and

developed interest in the growth of the

self-excited dynamo and electric-traction.

In 1880 he designed the worlds first

electric elevator.

For his contribution in physics, siemen is

named as unit for conductance.

Erest Warner von Siemens


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Isaac Newton was English mathematical

and physicist, widely known for hisoutstanding contributions to physics,

mathematics and optics.

He also invented the calculus and

formulated the three laws of motion and

the universal theory of gravitation.

Newton proved that sunlight is the

combination of several colors.

Newton is the unit of force named after

him for his discoveries. Isaac Newton


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Watt was a Scottish inventor .

His fundamental improvements

to the steam engine led to the

widespread use of steam power

in industry.

Watt is the unit of power.

The watt unit is named after

James Watt

James watt

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