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twenty questions
Text, Bytes and Videotape
How can a 3 hour long film like the Lord of the Rings fit on a single DVD? Hw cn U rd txt msgs? How do MP3s make music files smaller, so they can be downloaded faster off the Internet? All these things rely on the mathematics of
data compression
.
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Let them eat cake — and drink vodka
Language analysis shows how the nation's tastes have changed.
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Writing the unwritable: up-arrow notation
How to write down unimaginably large numbers using just a few symbols.
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When things get weird with infinite sums
What is 1-1+1-1+1-1+...? How infinite sums challenge our notion of arithmetic.
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Mathematical mysteries: the Goldbach conjecture
Can every even number greater than 2 can be written as the sum of two primes? It's one of the trickiest...
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Mathematical mysteries: Hailstone sequences
Here's an easy game that leads you straight to an unsolved question in maths.
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The philosophy of cosmology
Can philosophy help explain our Universe?
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