Top 100 Facts
Chopping up onions activates a chemical reaction that releases sulfur gas. Water in the human eye reacts with sulfur gas to create sulfuric acid. Although the amount of acid is very small, it's enough to cause a burning sensation in the eye.
More than 1.5 million seeds of various plants from around the world are stored at the Svalbard global seed vault in Norway. To ensure the safety of the seeds, it was built inside a tunnel carved under a mountain.
The world's record for the longest pencil is held by the company BIC, set in October 2017. The pencil measures 3582.6 feet (1091 meters) long. It was made with a graphite core and polystyrene, allowing it to be bendable.
Titan Arum (the Corpse flower) in Sumatra is the world's tallest flower, growing up to 10 feet tall (3 meters). It flowers every 10 years and smells like rotten eggs combined with moth balls and rotten meat.