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Scientists
This category is for questions about the people who apply the scientific method to solve problems, introduce new concepts, and strive to explain the natural world.
9,527 Questions
Who are some famous scientists who contributed in the field of electricity?
Andre Ampere
Andre Marie Ampere was the first to explain the electro-dynamic theory. A permanent memorial to Ampere is the use of his name for the unit of electric current.
George Ohm
George Simon Ohm published, "The galvanic Circuit Investigated Mathematically". His theories were coldly received by German scientists. His name has been given to the unit of electrical resistance.
James Watt
James Watt invented the steam condensing engine. His improvements to steam engines were patented over a period of 15 years, starting in 1769 and his name was given to the electric unit of power, the Watt.
Thomas Edison
A really practical DC (Direct Current) generator was built by Thomas Edison. Edison's many inventions included the phonograph and an improved printing telegraph.
Joseph Swan
Joseph Swan nvented the incandescent filament lamp and within twelve months.
Swan and Edison later set up a joint company to produce the first practical filament lamp. Prior to this, electric lighting had been my crude arc lamps.
William Thomson (Lord Kelvin)
He made important contributions to many areas of Physics including electricity, magnetism and thermodynamics. He was created Lord Kelvin for his work on the first transatlantic cable.
Which microbe did Louis Pasteur say causes fermentation?
Louis Pasteur discovered that fermentation was caused by a microbe and that the wine went off if other sorts of microbe got into it at the same time.
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Why might scientist prefer using metric unit rather than feet or inches?
Mainly to use an accepted standard (scientists all over the world use the same units). Also, it is easier to do calculations in metric units.
What is the Bohr atom model of Sulfur?
A Bohr Atom Model consists of a CORE of 16 Protons and 16 Neutrons (32 total)
AND 16 total Electrons in the Energy Levels, the inner-most level has 2, the second level has 8, and the third level has 6. It would look kinda like Saturn, a core with "rings" and the "rings" would have "balls" on them that would represent the Electrons. Good Luck!
That is the way to do it... but if you want a visual go to the related link below.
Stephen Hawking
How do you know that Leonardo da Vinci was interested in science and engineering?
A noble might be interested in Leonardo da Vinci's engineering ability for many reasons. It is most likely, however, that in da Vinci's own day, a contemporary noble might be interested for the sake of gaining an advantage on the battlefield, as da Vinci proved capable of devising both fantastic and practically possible war-machines both large and small.
What scientist developed the concept of a half-life?
The principle and the name came from Ernest Rutherford in 1907
What is the name of the scientist who saw live bacteria in a drop of water?
Antonie van Leeuwenhoek is the scientist who is credited with being the first to observe live bacteria in a drop of water using a microscope that he built himself. His discovery revolutionized the field of microbiology.
I Recently bought 1993 BMW 740iL car go into reverse but not forward please help?
Mine was doing something very similar. The transmission uses plastic check ball valves (probably called something else), that wear out. I just had mine rebuilt for $900
What is the difference between a biologist and a scientist?
A biologist is a specific type of scientist specializing in Biology.
A scientist can be any type of scientist but their specialty is not specified.
The electron had already been discovered. It took little imagination to "see" that the cathode ray was the beam of electrons that originated from the cathode. And the beam was controlled using techniques based directly on what was correctly understood about the electron. The cathode ray could only be an electron beam generated at the cathode. Conventional elctric current flow is usually thought of as flowing from positive to negative, but at the quantum level; due to electrons having a negative charge; technically they really flow from negative to positive, and this is apparent in the cathode ray tube. Its the negatively charged electrons that glow in a cathode ray tube, and do so from the negative terminal, or cathode, hence the name.
Max Ernst was born on April 2, 1891, in Bruhl, near Cologne, Germany,
the third of nine children of a middle-class Catholic family.
Alexander Fleming , who discovered Penicillin. Levi Strauss created Levi jeans Isaac Singer invented the Singer sewing machine John Landis Mason invented the Mason screw-top jar Rev. Stirling invented the Stirling engine.
What are some scientists that begin with the letter F?
Here are some scientists that begin with the letter F:
- Francis Bacon
- Francis Crick
- Francis Galton
- Frederick Sanger
- Friedrich Wöhler
- Fritz Haber
What 5 scientific papers did Albert Einstein publish?
Well he wrote one where he stated his views on the theory of relativity and how he came to the conclusion of E=MC2 and another about the story how his life got flip turned upside down and i'd like to take a minute just sit right there I'll tell you how I became the prince of a town called Bel-Air. In west Philadelphia born and raised on a playground where I spent most of my days chillin out maxin relaxin all cool and shooting some b-ball outside of the school when a couple of guys that were up to no good, started making trouble in my neighborhood. I got in one little fight and my mom got scared and said "your moving with your uncle and aunty in Bel-Air." I listened for a cab and when it came near the license plate said "Fresh" and it had dice in the mirror. If anything I could say this cab was rare but I thought "Nah forget it. You homes, to Bel-air!". I pulled up to a home about 7 or 8 and I yelled to the cabby "Yo homes, smell ya later!" Looked at my kingdom, I was finally there, to sit on my throne as the Prince of Bel-Air.
