When an object like a space station orbits the Earth, it is actually in constant free fall. In simple terms, it is continuously falling toward...
Underwater, sound travels faster than in air, reaching about 1500 m/s, which is more than 4 times the speed of sound in air (about 340...
One year, you think it's exactly 365 days, but in reality, the Earth takes exactly 365.2422 days to complete one full orbit around the Sun...
Moss is a plant that resembles a small natural sponge. Its structure full of tiny holes allows it to absorb and retain water easily. Once...
Everything comes from the medieval era. At that time, knights, who were generally right-handed, preferred to travel on the left side of the roads to...
Tears are not just saltwater. Obviously, their number one ingredient is water, about 98-99%. But in them, you will also find salt (mainly sodium chloride), which explains...
Gravity acts like a kind of cosmic glue: it attracts all matter toward the center of a celestial body. When a planet or star forms, all the...
In the past, coins were made of precious metals like gold or silver, and some clever individuals would discreetly scratch their edges to recover precious...
An irrational number is simply a number that cannot be written in the form of a fraction like a/b with a and b being integers. And guess...
During a solar eclipse, the spaces between the leaves act like a multitude of tiny holes forming a natural pinhole camera. Normally, each hole simply...
