Science
The Human Body Contains Enough Iron to Make a 3-Inch Nail
Your body contains enough iron to make a 3-inch nail, primarily found in hemoglobin which carries oxygen through your blood.
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Facts
There Are More Possible Games of Chess Than Atoms in the Observable Universe
Chess has more possible game variations than there are atoms in the observable universe - over 10^120 possibilities!
History
The First Computer Bug Was an Actual Insect
The term "computer bug" comes from a literal moth found in the Harvard Mark II computer in 1947, taped to a logbook by Grace Hopper.
Science
Quantum Entanglement Allows Particles to Instantly Affect Each Other Across Any Distance
Quantum entanglement allows particles to instantly affect each other across any distance, defying our intuitive understanding of space and time.
Facts
A Single Cloud Can Weigh More Than a Million Pounds
Despite appearing light and fluffy, a single cloud can weigh over a million pounds due to the massive amount of water it contains.
History
The Great Wall of China Is Not Visible from Space
Despite popular belief, the Great Wall of China is not visible from space with the naked eye, though it can be photographed with equipment.
Science
Scientists Discovered a New Organ in the Human Body in 2018
In 2018, scientists discovered the interstitium - a previously unknown organ that was hidden due to how medical samples are prepared.
Facts
Sharks Have Existed Longer Than Trees
Sharks have been swimming in Earth's oceans for 450 million years - longer than trees have existed on land!