Scientists are excavating the ruins of a major civilization which pre-dates both the pyramids and Stonehenge by over 7,000 years. In 15 years, they have uncovered only about 5% of the site.
21
50 years ago Cheerios were called Cheerioats.
99
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
A comet's tail always points away from the sun.
2
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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