A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
You forget 90% of your dreams.
256
The strangers in your dreams are actually people that you've seen in real life.
50