Why Does Ice Float? (And Why Life Depends on It)
Most solids sink in their own liquid, but ice floats because frozen water molecules lock into an open crystal that is about 9% less…
Read article →Wacky World
Fun facts, odd science and surprising history.
Why Do Cats Purr?
Why Do Cats Purr?
Cats purr by rapidly twitching muscles in their voice box — not only when happy but also when stressed or hurt. What science knows…
Read article →OK: How a 19th-Century Joke Became the World’s Most Used Word
OK: How a 19th-Century Joke Became the World’s Most Used Word
"OK" started as a joke abbreviation for "oll korrect" in 1830s Boston newspapers and was saved from fading away by a presidential campaign. The…
Read article →Why QWERTY? The Real Story of the Keyboard Layout
Why QWERTY? The Real Story of the Keyboard Layout
Why the letters on your keyboard are in such a strange order: typewriter jams, telegraph operators, a famous patent and why nobody switched even…
Read article →How Does a Microwave Heat Food? (And Why It Doesn’t Cook From the Inside)
How Does a Microwave Heat Food? (And Why It Doesn’t Cook From the Inside)
Microwaves make water molecules spin and jostle, turning wave energy into heat in the outer few centimetres of food. How it works, why some…
Read article →Why Do We Get Goosebumps?
Why Do We Get Goosebumps?
Goosebumps are tiny muscles pulling your hairs upright — a leftover reflex from furry ancestors that fluffed up to keep warm or look bigger.…
Read article →Why 0.1 + 0.2 Is Not Exactly 0.3 (and Why Excel Sometimes Agrees)
Why 0.1 + 0.2 Is Not Exactly 0.3 (and Why Excel Sometimes Agrees)
Computers store decimals in binary, so 0.1 + 0.2 becomes 0.30000000000000004. Why it happens, why Excel usually hides it and where it doesn’t (wrapped…
Read article →Why Does Excel Have Exactly 1,048,576 Rows? The Logic Behind Software Limits
Why Does Excel Have Exactly 1,048,576 Rows? The Logic Behind Software Limits
Why Excel stops at 1,048,576 rows and column XFD, why old Excel had 65,536 rows, why numbers lose digits after 15, why FAT32 files…
Read article →Why Does Your Phone Battery Die Faster in the Cold?
Why Does Your Phone Battery Die Faster in the Cold?
Lithium-ion batteries slow down in the cold: the chemistry inside gets sluggish, voltage drops and the phone shuts down early. Why it happens and…
Read article →Why Do We Have Leap Years? (And Why 1900 Was Not One)
Why Do We Have Leap Years? (And Why 1900 Was Not One)
A year is about 365.2422 days, not 365. How leap years fix the drift, why century years are usually skipped, and how this affects…
Read article →Why Is the Sea Salty but Rivers Are Fresh?
Why Is the Sea Salty but Rivers Are Fresh?
Rain slowly dissolves minerals from rocks, rivers carry them to the sea, and evaporation leaves the salt behind — for hundreds of millions of…
Read article →The Indian Mathematician Who Measured Everest: Radhanath Sikdar
The Indian Mathematician Who Measured Everest: Radhanath Sikdar
In 1852 Radhanath Sikdar, a mathematician with the Great Trigonometrical Survey, worked out that "Peak XV" was the highest mountain on Earth. The story…
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