A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The storage capacity of human brain exceeds 4 Terrabytes.
140
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists aren't sure what color dinosaurs were.
312
The bark of an older redwood tree is fireproof.
65