
xmas clock  Is it Christmas yet? 

Secret Santa  How to do Secret Santa properly 

Robot Jobs  Will robots take your job? 

What did Bowie do?  What did David Bowie achieve when he was your age? 

Import Export  Data visualisation  choose your country on the left, see all your imports and exports. 

Mandelbrot Set  Mandelbrot  an exploration in pure mathematics 

Mousepoint  A clickless mouse game 

Two hundred  Numbers from 1200 in Google images. 

2048 Solitaire  An interesting combination of 2048 and Solitaire. 

Population Clock  How many people in the world right now? 

Gridwatch  The UK's National Grid Status 

Speedy Math Race  Race your car by solving simple sums. The more you solve the faster you go. 

New Math  Tom Lehrer song with animations. How's your octal? 

Circular  How well can you draw a circle? 

Binary Clock  Display the time in binary (or hexadecimal, or smileys)... the ultimate geek clock site! 

2248  Another doubling game. Slide tiles horizontally, vertically or diagonally. 

Get 1000  Try to get 1000  a bit like 1024 

Hexclock  A 24 hour clock represented by a hexadecimal number which in turn colors the background. 

Powerball  Is playing the lottery a good investment? 

primes  Ten thousand prime numbers 

Dice Simulator  Seconds of fun. Roll 6 ones? 1 in 47,000 chance 

How fast  How fast are you travelling right now? 

Number Gossip  Number secrets exposed..... 

Number list  The longest list of numbers on the internet... ? 

Nonogram frvr  Nonogram puzzles. Gorgeous! 

Paper  Keep folding the paper 

Progress  Visualizing cycles 

Combination lock  Addictive "Crack the code" math game  progressive and multiplayer modes. 

How Earth Moves  Unravelling the mysteries of time and space. 

Paperclips  Build your own paperclip empire 

Spend  Spend Bill Gates' money 

Game lengths  How long does it take to play... 

Types of octopi  What do you call an octopus with half a tentacle? 

Googolplex written out  The number Googolplex written out in a book and a series of PDF documents. 

Workout Cho.co  How many chocolate bars can you eat after that workout? 

Mega Penny  Can you visualise 1 million coins? 

Langton's Ants  Like Conway's Life, but with digital ants. 

2048 Numberwang  That's Numberwang! 

Jokes with Einstein  Hey, I got a joke 

Huge Numbers  A huge number, comes with free "puzzle" 

200 years, 4 minutes  Hans Rosling  200 years of world statistics compressed into 4 minutes. 
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