Sound propagates through the air in the form of longitudinal waves. These waves are variations in pressure that move through air particles. The speed of...
Airplanes leave trails in the sky due to the phenomenon of condensation trails. When an airplane flies, it burns fuel, producing heat and humidity. This...
Golf balls have dimples, also called dimples, which are not present for aesthetic reasons but for very specific physical reasons. These dimples are present to...
Tennis balls are hairy to improve their aerodynamic characteristics. The hairs on a tennis ball create additional drag when it is in motion, increasing air...
In space, gravity is different from what we experience on Earth. This difference is due to the constant free fall of the astronaut around the...
Pi is irrational, which means that it cannot be expressed as a simple fraction of two integers. In other words, Pi is a number whose...
During a solar eclipse, trees can cast fascinating shadows thanks to a phenomenon called the pinhole effect. The leaves of the trees act like many...
When we listen to a recording of our voice, it is common to notice that the sound we perceive is different from what we hear...
There are several types of electrical discharges: Electrostatic charge can be formed through several mechanisms. Among them, we can mention friction, conduction, and induction. Friction...
The light emitted by electronic devices' screens at night disrupts the production of melatonin, the sleep hormone. In fact, our body is sensitive to the...
