
One of the most repeated myths ever
Can You See the Great Wall of China from Space?
The Great Wall of China is not visible from space with the naked eye. It is too narrow. Multiple astronauts, including Chinese astronauts, have confirmed this directly.

Glass is a solid. Full stop.
Is Glass a Liquid?
Glass is a solid. The old window thickness myth is wrong. Here is what glass actually is, why old windows are uneven, and what a supercooled liquid actually means.

The science is pretty clear on this one
Does Sugar Cause Hyperactivity?
Multiple controlled studies have found no link between sugar and hyperactivity in children. The belief persists anyway. Here is why, and what is actually happening.

History Explained
Did Vikings Wear Horned Helmets?
Almost certainly not. Archaeologists have found virtually no evidence that Viking warriors wore horned helmets in battle. The iconic image was largely invented in the 19th century by Romantic artists and opera costume designers. Real Viking helmets looked completely different.