'Bloodcurdling' is more than just a phrase. Studies have shown that watching horror films can raise levels of a blood-clotting protein in your body.

Silly String was originally invented as a medical spray to create instant casts for broken bones, before being repurposed as a toy.

Research shows that brewing tea naturally removes toxic heavy metals like lead and cadmium from water, making drinks safer. Tea leaves attract and filter out these contaminants.

Modern rap battles trace back to 'flyting', a medieval contest of trading insults in verse. Warriors sometimes flyted before battle, and kings encouraged it for entertainment.

Earth's magnetic field has reversed 183 times in the last 83 million years. When it does, compasses will point to the South Pole rather than the North. Some scientists theorise that the latest reversal is underway.

In 2016, Mozart sold more CDs than Beyoncé.

Water isn't just 'water' - its taste subtly varies by region and brand due to minerals, pH, and dissolved gases. The difference is often imperceptible.