#physics

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

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

science How does Einstein's theory of relativity differ from preceding theories?

Einstein's theory of relativity is one of the most significant scientific breakthroughs in history. Prior to Einstein's theory, the prevailing view... Read more

calculate How do you calculate the gravitational force between two objects?

According to Newton's law of universal gravitation, every object in the universe attracts every other object with a force that is directly... 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

science What is the theory of relativity, and did Einstein ever express doubts about its correctness?

The theory of relativity is a set of two interrelated physical theories proposed by Albert Einstein. The first one, called special relativity, was... Read more

visibility Where does light travel to and where does it stop?

Light travels through space in a straight line at a constant speed of 299,792 kilometers per second (or approximately 186,282 miles per second).... Read more

science How do you calculate the kinetic and potential energy of an object?

Kinetic energy is the energy an object possesses due to its motion, while potential energy is the energy an object possesses due to its position or... Read more

contact_support What is the difference between Lorentz's and Einstein's theories of relativity?

Lorentz's theory of relativity was developed in the late 19th and early 20th century, while Einstein's theory of relativity was published in 1905 and... 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