#physics

space_dashboard  How big is space?

Space is vast, to say the least. In fact, it is so large that it's difficult for the human mind to comprehend its sheer size. The observable...    Read more

speed  What is the speed of light?

The speed of light is a fundamental physical constant, denoted by the letter c. It is the speed at which electromagnetic radiation (such as light)...    Read more

brightness_7  What is the difference between a planetary nebula and an HII region?

Planetary nebulae and HII regions are two types of nebulae found in space. Planetary nebulae are formed by the ejected outer layers of dying low to...    Read more

wb_sunny  How is the sun expected to evolve in the future?

The sun is a main sequence star, which means that it is in a stable phase of its evolution. However, as it continues to burn hydrogen in its core, it...    Read more

battery_full  What is the basic principle behind batteries and their ability to store and release electrical energy?

Batteries are devices that store and release electrical energy. The basic principle behind how batteries work is based on the concept of...    Read more

speed  Why is the speed of light regarded as the universal speed limit?

According to Einstein's theory of special relativity, the speed of light is the universal speed limit. This means that nothing can travel faster than...    Read more

flight  How do jet engines work?

Jet engines are used in aircraft to propel them forward by creating a forward thrust. There are various types of jet engines, but the most commonly...    Read more

speed  What is the speed of light?

The speed of light is a fundamental physical constant, denoted by the letter c. It is the speed at which electromagnetic radiation (such as light)...    Read more

scatter_plot  If I move at the speed of light and throw a stone forward, would it travel faster than light?

According to Einstein's theory of special relativity, the speed of light is an absolute limit that cannot be exceeded. This means that no matter how...    Read more

insights  What is string theory?

String theory is a theoretical framework in physics that attempts to unify all known forces and particles in the universe. It posits that the...    Read more