# br80bron

## br80bron

## About StumbleDNA StumbleDNA

## geek-news.mtv.com

## Leonhard Euler, his famous formula, and why he's so revered...

Google celebrates the birthday of Leonhard Euler, a Swiss mathematician recognized for popularizing much of modern math terminology and notation, as well as famous contributions to calculus and astronomy.

## 18 Ridiculously Geeky Pi Jokes

You'd have to be irrational to not celebrate Pi Day! Especially when there is real pie involved. So check out these π-fect jokes, and celebrate Pi Day with GE on March 14.

## Curta-Simulator

Curta-Simulator

## Two Trains Puzzle -- from Wolfram MathWorld

Two trains are on the same track a distance 100 km apart heading towards one another, each at a speed of 50 km/h. A fly starting out at the front of one train, flies towards the other at a speed of 75 km/h. Upon reaching the other train, the fly turn...

## cairnarvon.rotahall.org

## Bike with Square Wheels -- Math Fun Facts

Ride a bike with round wheels and it rolls smoothly on a flat road (i.e., the axle remains level). Can you get a bike with square wheels to roll smoothly on a road of some other shape?

## Online JavaScript Interpreter

## Humor

Humor - Stories and comments reaching our mailbox.

## www4.stat.ncsu.edu

## Schroeder Stairs -- from Wolfram MathWorld

The Schroeder stairs, also called Schouten's staircase (Bool 1982, p. 147), are an ambiguous figure that depicts two different staircases at the same time: one going up from right to left, the other turned upside down. The Schroeder stairs appear i...

## blog.stephenwolfram.com

## Jackpot | Futility Closet

An idler's miscellany of compendious amusements

## Numbers follow a surprising law of digits, and scientists...

Does your house address start with a 1? According to a strange mathematical law, about 1/3 of house numbers have 1 as their first digit. The same holds true for many other areas that have almost nothing in common: the Dow Jones index history, size of...

## Countdown | Futility Closet

An idler's miscellany of compendious amusements

## Nature, The Golden Ratio and Fibonacci Numbers

Plants grow new cells in spirals, such as this pattern of seeds in the beautiful sunflower.

## spikedmath.com

## instantattitudes.com

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