Top 10 mathematics factsMathematics quiz
Which numeral system was in use in ancient Sumer and Babylon?
Sexagesimal. Remnants of the highly composite sexagesimal system are in use even today for time measurement and geometry. An hour of time is divided into 60 minutes, which in turn are divided into 60 seconds.
How many edges does a Möbius strip have?
One. The Möbius strip is a surface with only one side and only one boundary component (edge). A line drawn starting from the seam down the middle will meet back at the seam but at the "other side". If continued the line will meet the starting point and will be double the length of the original strip.
If Earth's radius was larger by 1 meter, how much longer would its equator be?
By approx 6 meters. For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.
Which of the following is a term in mathematics?
Taxicab numbers. is defined as the smallest number that can be expressed as a sum of two positive cube numbers in n distinct ways. The name is derived from a conversation in about 1919 involving mathematicians G. H. Hardy and Srinivasa Ramanujan. Hardy has ridden in taxi-cab No. 1729, and remarked that the number seemed to be rather a dull one. Ramanujan replied that the number was very interesting, as the smallest number expressible as the sum of two cubes in two different ways.
What is the largest integer ever used in a mathematical proof?
Graham's number is an enormous number that arises as an upper bound on the answer of a problem in the mathematical field of Ramsey theory. The number was published in the 1980 Guinness Book of World Records, adding to its popular interest.
During World War II, the Allies recorded the serial numbers of captured German tanks' gearboxes. Why?
To estimate total tanks production. The allies found out, that the gearbox numbers fell in two unbroken sequences, so large production resulted in influx of large serial numbers. Today, the problem of estimating the maximum of a discrete uniform distribution from sampling without replacement, is known - in the English-speaking world - as the German tank problem.