Archive
Topic: Earth
Fact
Earth’s core is roughly as hot as the surface of the Sun
About 5,400 degrees Celsius, a few thousand kilometres beneath your feet.
Fact
The Amazon is fertilised by dust from the Sahara
Millions of tonnes a year, blown across an ocean.
Fact
Antarctica is a desert
The driest continent on Earth is buried under most of its fresh water.
Fact
Earth’s atmosphere was poisoned by its own life
Oxygen was a pollutant, and it caused one of the largest extinctions in history.
Fact
Mount Everest is not the tallest mountain, by two different measures
It wins on altitude and loses on height, and loses again on distance from the centre of the Earth.
Fact
The Sahara was green within human history
Lakes, hippos, and rock paintings of people swimming.
Fact
A lake in Cameroon suffocated 1,700 people in one night
No eruption, no earthquake. The water simply exhaled.
Fact
There was a period when fallen trees may not have rotted
It could be why we have coal at all.
Fact
Honey found in Egyptian tombs was still edible
Thousands of years old, and chemically it had barely moved.
Fact
Wild almonds can kill you
Domestication of the almond was a matter of finding the one tree that would not.