# Cool Facts

## Fibonacci Spiral

The Fibonacci Spiral in nature:

## Dudeney numbers

This is pretty neat. A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equal to the cube root of the number. For example: 5832 = 18 x 18 x 18… and 5 + 8 + 3 + 2 = 18. How many such …

## Happy birthday Hawking, happy death day Galileo

Just a note that today is Stephen Hawking’s birthday and also Galileo’s death day. Galileo Galilei Born: Feb 15th, 1564 (Pisa) Died: Jan 8th, 1642 (Arcetri) Stephen William Hawking Born: Jan 8th, 1942 (Oxford)Died: Should have died five decades ago. Hawking’s birth occurred on the 300th anniversary of Galileo’s death! Hawking says, “Galileo, perhaps more …

## Perfect Pizza Slicing

This has honestly been all over the internet. EVERY single blog/website I read had this — boing boing, slashdot, digg, digg again, mixx, reddit (posted 4 times actually), among with a billion other sites. PIZZA MATH!!! PIZZA MATH!!! PIZZA MATH!!! AHHHH. Enough with the stupid pizza slicing!!. Anyways, if you seriously haven’t seen this yet …

## Pi crop circles

You may have seen this already since it dates back to June 2008… But there was reports of a crop circle that represented the first 10 digits of pi (including the decimal point). Pictures below. Believers in aliens argue it was made by mathematically minded aliens… But of course, there is a super high probability …

Hmmm…

## Pi explaination

This is neat hahaha… No idea where it came from. It says gifbin.com on the image though ðŸ˜€

## Do the math – weightloss

Want to lose 10 pounds within two months? All you have to do is the math!! My simple 5 step program is flawless I tell ya, FLAWLESS! Multiply the number of pounds you want to lose by the number of calories in a pound of fat. 3500 calories in a pound of fat So, if …

## A Friendly Chat About Whether 0.999… = 1

Via reddit I stumbled upon this site which talks about something called hyperreal numbers and claims that in this theory, the equation 0.999… = 1 is false. For those who follow the internet, the question of whether 0.999…=1 has come up a quadbrazillion times on practically every math related forum and even the non-math ones. …