A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Cows can sleep standing up, but they can only dream lying down.
745
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14