Archive for the ‘Mathematics’ Category

Blood Vessel in Eye Spells the Word “Love”

May 7, 2014

Bloodshot eyes appear red because the blood vessels in the surface of the white portion of the eye (sclera) become swollen. This may result from dry air, too much sun, dust, something in the eye, allergies, infection, or injury.

And while a million monkeys typing for a million years will not reproduce Shakespeare’s work, 7 billion humans on Earth with 14 billion eyeballs will eventually create an eyeball which is capable of spelling the word ‘love’ using small blood vessels called capillaries.

See:

Nature by Numbers

January 27, 2013

The Fibonacci Sequence is the series of numbers:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, …

The next number is found by adding up the two numbers before it — and it is in nature …

How Big Is Infinity?

January 17, 2013

Using the fundamentals of set theory, explore the mind-bending concept of the “infinity of infinities” — and how it led mathematicians to conclude that math itself contains unanswerable questions.

A clever way to estimate enormous numbers

October 6, 2012

Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: “How many piano tuners are there in Chicago?” Physicist Enrico Fermi was very good at problems like these — learn how he used the power of 10 to make amazingly fast estimations of big numbers.

The World’s Hardest Sudoku

July 25, 2012

So. You think you’re smart. Well, Finnish mathematician Arto Inkala challenges you to a game of sudoku, the hardest one ever constructed (on the scale of 1 to 5 as rated by difficulty, this sudoku goes all the way to 11):

How Folding Paper Can Get You to the Moon

May 30, 2012

Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper to see how many times you can fold it!

Some computer games are hard, and that’s mathematically official

April 16, 2012

If you have ever struggled to complete classic Nintendo games, don’t feel bad – they are officially difficult.

An analysis of the computational complexity of video games, including those in the Mario and Legend of Zelda series, proves that many of them belong to a class of mathematical problems called NP-hard. This means that for a given game level, it can be very difficult to work out whether it is possible for a player to reach the end. Learn more here.

Your mathematical probability of being wrong is high

November 26, 2011

Probability theory is the branch of mathematics concerned with analysis of random phenomena. In most four-choice multiple choice questions, your probability of being correct is 1 in 4. Not so with this question:

Our changing world

December 6, 2010

See how the entire human population is slowly getting rich and healthier:

Can you fold paper in half 12 times

August 7, 2010

A popular belief holds that it is impossible to fold a sheet of paper in half more than 7 times.