The Eiffel Tower grows slightly taller in summer due to heat expansion.

The flavor of artificial strawberry is based on a single variety of wild strawberry that no longer commercially exists.

The steam engine's invention is attributed to James Watt, but Thomas Newcomen built the first practical steam engine in 1712.

Cashew nuts grow on the outside of the cashew apple, a fruit that is itself edible but highly perishable.

The Great Wall of China used rice flour mixed into the mortar — the sticky carbohydrate strengthened the bonds.

The identification of vitamins advanced nutritional science.

Cashews always come roasted because raw cashews contain urushiol, the same toxin as poison ivy.

High-altitude mountaineers can lose up to a pound of weight per day on extreme climbs due to calorie burn and dehydration.

Passive house design reduces heating and cooling needs by up to 90% through insulation, ventilation, and orientation.