Numbers & Maths

One Thousand

29, January 25, 2011

From 0 to 1,000, the letter “A” only appears in 1,000 (“one thousand”). By: Roy Did you like this? Share …Read the Rest

1089 – a magic number!

36, July 13, 2010
1089 – a magic number!

A nice arithmetical trick to show to children is the 1089 trick. It’s not really a trick, just a surprising …Read the Rest

Pi Day!

02, March 15, 2010
Pi Day!

(Pi by Mykl Roventine) The 14th March (3/14 in American date notation) has over recent years become Pi day because …Read the Rest

The Antikythera – a 2000 year old computer!

From second-century BC Greece, the Antikythera is a mechanical computer that, in terms of complexity, was 1,500 years ahead of …Read the Rest

Wittgenstein’s Puzzle

36, September 14, 2008
Wittgenstein’s Puzzle

Here is a puzzle that was set by the famous mathematician, Wittgenstein. See if you can solve it before reading …Read the Rest

Population Overdrive!

50, September 14, 2008

The world’s (human) population at the time of Christ was about 200 million. Now it is nearing 7 billion! Projections …Read the Rest

Numbers with the same number of letters as their value…

There is only one number in English that has the same number of letters as it’s value, that being the …Read the Rest