When we look at the night sky, it may seem like the stars are countless, but did you know that there are more stars in the universe than grains of sand on all the Earth's beaches Estimates suggest that there are about 70 sextillion (7 followed by 22 zeros) stars in the observable universe. On the other hand, it’s estimated that all the sand gra
The Mpemba Effect is a curious phenomenon where hot water freezes faster than cold water under certain conditions. This effect was named after Erasto Mpemba, a Tanzanian student who noticed this unusual behavior in 1963. Although it may seem counterintuitive, scientific experiments have shown that under the right circumstances, the hot water will f
Jellyfish are incredibly ancient creatures that have been around for over 500 million years. This means they existed long before dinosaurs roamed the Earth. These fascinating invertebrates belong to one of the oldest living species on the planet. Despite their simple appearance consisting mostly of water, with no brain or bones jellyfish have manag
Did you know that sound travels four times faster in water than it does in air This is because water is denser than air, which allows sound waves to move more quickly through it. In water, sound moves at about 1,500 meters per second, while in air, it travels at about 343 meters per second. This difference is why underwater sounds, like whale cal