The world's shortest flight lasts about a minute.
Loganair's Westray–Papa Westray hop covers 2.7 km; it's scheduled for about 1.5 minutes, and the record with a tailwind is 53 seconds.
HISTORICAL ARCHIVE
Sources · October 23, 2026
Every claim from this day’s challenge, with its verdict, explanation and sources.
Round 1
The blue whale is the largest animal that has ever lived.
By mass, yes — up to ~180 tons. But some dinosaurs were longer, and a 2023 fossil whale (Perucetus) briefly claimed the title before later estimates cut it down.
Dogs sweat exclusively by panting with their tongues.
Panting regulates heat, but their actual sweat glands (merocrine glands) are located on the bottom of their paw pads.
Round 2
Sweden switched which side of the road it drives on — in one morning.
On Dagen H (September 3, 1967), the entire nation flipped from left-hand to right-hand traffic in a single coordinated changeover.
Some turtles breathe through their rear ends.
During underwater hibernation, species like the Fitzroy River turtle absorb oxygen from water via cloacal respiration; on land, normal lungs apply.
The Great Wall of China is the only human structure visible from the Moon.
No human-made object is visible from the Moon with the naked eye; even from orbit the Wall blends into the terrain. Apollo astronauts confirmed it.
Round 3
The U.S. government deliberately poisoned alcohol during Prohibition.
To stop bootleggers from reselling industrial alcohol, officials ordered it laced with toxins like methanol — and thousands of drinkers died when it reached speakeasies anyway.
The smell of rain is actually the smell of bacteria.
Petrichor is mostly geosmin, an aerosol released by Streptomyces soil bacteria when raindrops strike the ground.
Thomas Edison invented the lightbulb.
Edison built the first commercially viable bulb; Swan, Davy, and others had working electric lights decades earlier.