Did you know

There was a fierce storm that raged over the town on the night Nikola Tesla was born. It was told it is a bad omen to which Tesla’s mother replied: “No. He will be a child of light.”

Uranus is the only planet in our solar system that rolls on its side like a barrel, while Venus is the only planet that spins in the opposite direction to Earth.

The first known robot to be built was a steam-powered “pigeon”, created around 400 to 350 BCE by the ancient Greek mathematician Archytas.

Radio waves are a form of electromagnetic radiation – the same phenomenon as light, X-rays and various other types of radiation, but with much longer wavelengths. They travel at the speed of light 300 000 km/second.

Researchers have calculated that the average cumulus cloud you see on a sunny day – weighs an incredible 500 000 kg

97percent of the water on Earth is salt water, water found in lakes, rivers, streams, ponds, swamps, etcetera accounts for only 0.3 percent of the world’s fresh water. The rest is trapped in glaciers or is in the ground

Earth’s average orbital speed is about 30 kilometers per second. In other units, that’s about 19 miles per second, or 67 000 miles per hour, or 110 000 kilometers per hour.

Every year, the Moon moves 3,8 cm further away from us. Because of this, the Earth is slowing down.

Only approximately about 8 (17 October 2026) percent of the world’s currency is physical money, the rest only exists on computers and it is basically virtual.

The Eiffel Tower is officially 324 meters high but it’s height changes depending on the season. In hot summer days thermal expansion causes the metal to grow and the tower can get with more than 15cm taller.

The average temperature of a lightning bolt is 27700 degrees Celsius, or five times hotter than the temperature of the surface of the Sun, which is 5505 degrees Celsius.