The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
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
Your thumb is about the same size as your nose.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Your body is creating and killing about 2.4 million red blood cells per second.
17
A cow produces around 200,000 glasses of milk in her lifetime.
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