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Mathematicians
Often, to completely understand the importance of a mathematical theory, it's essential to know about the person who developed it. This category is where all questions about historically significant mathematicians should be asked.
6,570 Questions
What did René Descartes believe in?
One of the most important discoveries for modern mathematics made by Rene Descartes was the Cartesian coordinate system. Two other major discoveries are the law of reflection and parts of the law of conservation of energy.
Where is Rene Descartes hometown?
It is a town in central France which was renamed Descartes in his honour,
What year did Joseph Louis Lagrange died?
Joseph Louis Lagrange was born on 25 January 1736, and died on 10 April 1813.
Has Isaac Newton ever been proven wrong about anything and if so who proved him wrong?
Newton used prisms to show that sunlight was made up of all the colors of the rainbow. This proved that the ancient Greeks' ideas about light were wrong.
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We all know the story that SIr Isaac Newton was hit by an apple on the head which led him to formulate gravity. Now Kepler had developed a theory that about planetary motions:-
- The orbit of a planet is an ellipse with the Sun at one of the two foci.
- A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.
- The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.
Why did René Descartes invent scientific notation?
I'm not sure that Descartes invented scientific notation. No offense: Descartes was a brilliant and important figure, but this is hardly the achievement to remember him for.
Descartes did introduce the modern notation for exponentiation (7x3 for example) in his Geometrie, published in 1637. I think we make a bigger deal of this notational innovation than it really is: the concept of exponentiation was alive and well already, and other mathematicians used notation remarkably close to this (Hume would have written 7xiii for example).
The idea that very large or very small numbers need special notation certainly did not begin or end with Descartes. We are constantly finding new ways to write inconveniently scaled numbers: $3B rather than $3 x 109 or $3,000,000,000 or 4GB rather than 4,294,967,296 bytes. If you've ever heard someone say something like "the mass of the sun in kilograms is 2 followed by 30 zeros," that person has had the same basic idea.
As to your question "why" we have scientific notation (or any of these other ways to deal with inconveniently scaled numbers), I think there are two reasons:
1. It helps us deal with the scale of these numbers better. What I mean by this is that 2,000,000,000,000,000,000,000,000,000,000 Kg is really hard to read or say, while 2.0 x 1030Kg is more manageable. When we do computation with these numbers (for example, dividing a kilogram of water by the mass of a single water molecule to get the number of molecules), scientific notation is especially convenient.
2. It reminds us that only the first few digits actually mean anything. That figure up there for 4GB is a good illustration: we don't usually care about the *exact* number of bytes, we just care whether the memory in our computer 1GB, 2GB, or 4GB. In physical measurements typically used in science or engineering, we simply can't measure precisely enough that the *exact* number matters. That's why 2 x 1030Kg means something different than 2.0 x 1030Kg (the difference tells me something about how good the measurement is).
1. Henry Sy SM Supermalls
2. Lucio Tan Banco De Oro
3. Jaime Augusto Zobel Ayala Land Corporation
4. Oscar Lopez MERALCO
5. Leonardo Sarao Sarao Motors
Describe the acoustical experiments of pythagoras and what the result of those experiments were?
respuestas
Talents are something you are good at, no one is good at everything. Some people are better at music, others at math, others dance, or even foreign languages!
In France - in the Auvergne region of France in 1623. He died in Paris in 1662.
What was Aristotle's famous motto?
I presume this refers to Aristotle's Golden Mean: "Those at the extremes lay claim to the middle place". From Nicomachean Ethics
"Give me a place to stand, and I shall move the earth!"
"EURIKA!"
whoever wrote "by a heart attack in the zoo" was just trying to be funny she died cause she was very ill and after her father died she quit on math an let herself lead to a life of poorness, homelessness and that's how she became ill.
What did Rene descartes discover about rainbows and how their formed?
Rene Descartes discovered that rainbows have a scientific and mathematical element to them that could explain their presence. He was able to determine that the whole universe could be explained through science and math.
How much money does a historian make in a year?
Most historians make anywhere from 30-60 thousand dollars a year. The pay scale can go higher depending in the experience level of the historian.
What did Archimedes do in science?
Archimedes was a Greek scientist. He contributed to the fields of mathematics, science, and engineering. He made many achievements in these fields. To name a few: * He found that he could find a sphere's volume when he compared it to a cylinder of similar size. * He invented a machine that could be used to irrigate crops. * He created a system that allowed him to express very large numbers. * He used buoyancy to help determine volume.
David Efron is Specializes on jury trials, generally representing plaintiffs in personal injury and he was born in San Juan, Puerto Rico :)
Lillian Vernon was 88 years old when she died on December 14, 2015 (born Lilli Menasche, March 18, 1927).
Her eponymous corporation was founded in 1951, went public in 1987, and was taken private again by Zelnick Media Corporation (ZMC) in 2003.
Did Orville redenbacher have any brothers or sisters?
Orville Redenbacher had one brother, Karl Conrad Redenbacher, who was seven-years older than Orville. Orville Redenbacher was born in Brazil, Indiana in 1907. He began growing popcorn as a 4-H project, when he was a young boy.
