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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 was the name of the father of Surya?
Surya's father's name is Sivakumar. He was an actor. I love Surya!
How do you separate sixteen goats with six straight lines?
Draw three lines separating the four columns and then draw three more lines separating the rows
What were sir Isaac newton's hobbies?
Sir Isaac newton had many hobbies, but the two main ones are astronomy and alchemy
How does Archimedes influence us today?
Archimedes is an interesting mathematician. He invented many different things during his lifetime. A lot of the things Archimedes invented are still used somewhat today.
Archimedes was born in 287 B.C. in Syracuse, a Greek seaport. Syracuse is located in Sicily. Archimedes's father, Phidias, was an astronomer. A lot of Archimedes's works were lost or burnt so we do not know who Archimedes's mother was, the number of brothers and sisters he had, and if he was married or not. Archimedes studied at Euclid's school in Alexandria. Archimedes invention, the compound pulley, could be used to pull ships on land and lift heavy objects with ease. The pulley looked like this:
Archimedes invention, the Archimedes's screw, was used to remove water from the hold of a large ship. The Archimedes's screw looked like this:
Archimedes also invented the burning mirror which was a weapon used in war. He used the mirror to keep the Romans out of Syracuse for a long time during a war. A picture of Archimedes using the mirror looked like this:
Archimedes found thirteen different geometric figures. Some of those many different geometric figures are displayed here.
Archimedes died in Syracuse, Sicily, in 212 B.C. at the age of 75. There is no real explanation on how he died, but it is said he was killed in the capture of Syracuse by the Romans. The reason that he is said to have died is that when a soldier came and stepped on a problem Archimedes was working on Archimedes snapped at the soldier and the soldier then killed him.
An odd thing about Archimedes is that it is said that he postponed the capture of Syracuse by using mirrors to focus the sun on the Roman ships and using huge cranes to turn the ships over. Archimedes discovered buoyancy while taking a bath so then he ran around town naked shouting because he discovered buoyancy.
Archimedes had nicknames such as, "the wise one", "the master", and "the great geometer."
Here is a manuscript of Archimedes sold at an auction.
Manuscript sold for $2m at auction in 1998
Archimedes did many more things that I had no idea he did. Hopefully you now know more stuff about Archimedes too like the inventions he invented.
Did Hippocrates live in ancient Athens?
Yes, he was in Athens, Greece. He was the first doctor to believe that illnesses didn't come from angry spirits. He also invented the Hippocratic Oath which doctors still use today. The Hippocratic Oath is an Oath that doctors take that says they will not harm their patients, etc.
What was archimede's ratio of pi?
Archimedes determined that pi was between
31/7 = 3.1429
and
310/71 = 3.1408.
To four decimal places, the true value is 3.1416
How old was srinivasa ramanujan when he died?
Ramanujan was just 32 years old when he died in the city of Madras (now known as Chennai) in South India on April 26, 1920. A college dropout he learned mathematics from S.L. Loney's book on trigonometry and a "do it yourself" type of a book of problems and formulae written by an obscure English Tutor meant for those who wanted to appear for the tripos exam in Cambridge, England. Bewitched by Ramanujan's genius, G.H. Hardy an atheist, pacifist and a mathematician from Cambridge invited him to there in 1914 for a few years. Ramanujan graduated in a couple of years, published a few papers with Hardy but was stuck in Cambridge for six long cold years during the first world war. Friendless, lonely, undernourished and isolated from his family he became ill. The cause of his illness remained undiagnosed. Some say he suffered from tuberculosis, some say he had developed an abscess in his liver. He also appears to have become mentally fragile and is rumoured to have attempted suicide by jumping before a train in a London subway station. A few years before he left for England he was married to Janaki a girl barely 10 years old, chosen by his other mother Komlatammal as his bride. No doubt, Ramanujan's mathematics was great but greater was his personal tragedy. Janaki was barely 17 years when Ramanujan returned to India a terminally sick man. As his widow, Janaki lived to a ripe old age of over 80.
Ramanujan's mathematics, inspires several mathematicians even today. People wonder where he got his beautiful insight into the abstract formulations of the number theory. Ramanujan himself unable to explain the source of his powers, attributed his genius to his family deity Namagiri. He will forever be remembered as the Indian wonder-boy of mathematics, perhaps the first global Indian.
He was interested in math, science and the art of war.
Who benefited from al-khwarizmis translation of algebra in the early 13th century?
love and prostitues
Why is there different metric units for measuring?
It makes it easier to get a sense of scale and understanding. For example what is easier to see?
An apple weighing 100g OR
An apple weighing 0.0001 tonnes
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Another contributor followed up on the same idea:
If you only had one unit for measuring, then you'd often wind up with
inconvenient numbers that were hard to handle or remember.
Examples:
If we only had millimeters, then grandma might live 35000000 of them away.
If we only had kilometers, then a wave of light might be 0.0000000004 of them long.
If we only had microseconds, then I would be 2208911040000000 of them old,
and the number would be changing too fast to read it.
How do you follow operation transformation?
Click on the image of the person on the homepage you want to follow. The videos etc are on the right-hand side next to the description of the person. Click on the image of the person on the homepage you want to follow. The videos etc are on the right-hand side next to the description of the person.
What happend when two fruit companies merged?
Since I assume that the rest of you like me are searching google instead of doing your homework. here's the answer! :D What Happend When Two Fruit Companies Merged? "they made a perfect pear"
How did Isaac Newton influence mathematical thinking?
Newton influenced mathematical thinking by his theory of Gravity, in using his mathematical analysis to derive Keplers Laws, mathematically.
In addition his book "Principia" also influenced mathematical thinking, especially the invention of Calculus .
Who are the great mathematician and their contribution in pi?
has a long and interesting history!
(Ancient history--More pi history--A novel way to compute pi--The symbol for pi--Having fun with pi--For more information)
That the ratio of the circumference to the diameter of a circle is constant (namely, pi) has been recognized for as long as we have written records.
A ratio of 3:1 appears in the following biblical verse:
And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it about. (I Kings 7, 23; II Chronicles 4, 2.)
The ancient Babylonians generally calculated the area of a circle by taking 3 times the square of its radius (=3), but one Old Babylonian tablet (from ca. 1900-1680 BCE) indicates a value of 3.125 for pi.
Ancient Egyptians calculated the area of a circle by the following formula (where d is the diameter of the circle):
This yields an approximate value of 3.1605 for pi.
The first theoretical calculation of a value of pi was that of Archimedes of Syracuse (287-212 BCE), one of the most brilliant mathematicians of the ancient world. Archimedes worked out that 223/71 < < 22/7. Archimedes's results rested upon approximating the area of a circle based on the area of a regular polygon inscribed within the circle and the area of a regular polygon within which the circle was circumscribed.
Beginning with a hexagon, he worked all the way up to a ploygon with 96 sides!
Archimedes's method for approximating the value of pi.
(Source: http://www.math.psu.edu/dna/graphics.html#archimedes)
The approximate area of the circle lies between the areas of the circumscribed and the inscribed hexagons.
More pi history:
European mathematicians in the early modern period developed new arithmetical formulae to approximate the value of pi, such as that of James Gregory (1638-1675), which was taken up by Leibniz:
/4 = 1 - 1/3 + 1/5 - 1/7 + . . . . . . . . . . .
One problem with using this formula to calculate the value of pi is that you would have to add 5 million terms to work out a value of /4 that extends to 6 or 7 decimal places!
In 1706, another mathematician named John Machin developed a refinement on Gregory's formula, yielding the formula still used today by computer programmers to compute pi:
Using this formula, an Englishman named William Shanks calculated pi to 707 places, a labor of many years, which he published in 1873. (Only 527 places were correct, however!)
A novel way to compute pi:
An eighteenth-century French mathematician named Georges Buffon devised a way to calculate pi based on probability. Buffon's method begins with a uniform grid of parallel lines, a unit distance apart. If you drop a needle of length k < 1 on the grid, the probability that the needle falls across a line is 2k/. Various people have tried to calculate pi by throwing needles. Depending on when you stop the experiment, you can obtain a reasonably accurate estimate of pi.
You can try Buffon's needle experiment for yourself (virtually) at http://www.angelfire.com/wa/hurben/buff.html
Some ants apparently actually use this algorithm to measure the size of potential nest sites!
The symbol for pi:
was introduced by the English mathematician William Jones in 1706, who wrote:
3.14159 =
This symbol was adopted by Euler in 1737 and became the standard symbol for pi.
Having fun with pi:
Some people are just crazy about pi!
There are pi poems . . .
There are pieces of music based on the digits of pi . . .
There is a web site where you can find your birthday in pi . . .
There are people who have memorized 1000+ digits of pi . . .
In 1897 the Indiana Legislature tried to legally establish the value of pi . . .
Pi has earned a spot in "The Useless Pages" (Ancient history--More pi history--A novel way to compute pi--The symbol for pi--Having fun with pi--For more information
How does Archimedes principle relate to covection?
I assume you mean "convection". The hotter liquid or gas is less dense, so it has less weight per unit volume, and it tends to float (move upward).
The set up of apparatus of Archimedes principle?
If you want to test the principle that the bouyant force on a submerged object is equal to the weight of the water it displaces, here is a procedure. Get a balance scale and weigh the object by hanging the object from a string attached to the scale pan (rather then just placing it on the pan). Next, place the hanging object in a graduated cylinder with a known amount of water. The water level in the graduated cylinder will rise when the object is submerged. The amount the water rises will give you the volume of water displaced and you can calculate the weight of that amount of water knowing the density of water. Next, readjust your balance scale to get the object's weight while submerged. You should find the objects weight has decreased by an amount equal to the weight of the displaced water. Meaning the water is exerting an upward "bouyant" force by this amount.
What are the Uses of Cauchy Euler equation?
One thing about math is that sometimes the challenge of solving a difficult problem is more rewarding than even it's application to the "real" world. And the applications lead to other applications and new problems come up with other interesting solutions and on and on...
But...
The Cauchy-Euler equation comes up a lot when you try to solve differential equations (the Cauchy-Euler equation is an ordinary differential equation, but more complex partial differential equations can be decomposed to ordinary differential equations); differential equations are used extensively by engineers and scientists to describe, predict, and manipulate real-world scenarios and problems. Specifically, the Cauchy-Euler equation comes up when the solution to the problem is of the form of a power - that is the variable raised to a real power. Specific cases involving equilibrium phenomena - like heat energy through a bar or electromagnetics often rely on partial differential equations (Laplace's Equation, or the Helmholtz equation, for example), and there are cases of these which can be separated into the Cauchy-Euler equation.
When did Charles Babbage make his first computer?
The earliest recorded discussion that's been found regarding Babbage's ideas for a calculating engine were in 1822. However, Babbage himself never actually completed a design; although, he continued working on several computer prototypes throughout the remainder of his life.
What does an explanation mark mean after a number in a math problem?
Do you mean an exclaimation mark (!) An exclamination mark means factorial so............. 3! = 3 factorial 3 factorial means 1x2x3 = 6 2! or 2 factorial means 1x2 = 2 4! or 4 factorial means 1x2x3x4 = 24
