#physics

science What are the basic principles of thermodynamics and their applications in science and engineering?

Thermodynamics is a branch of physics that deals with the relationships between heat, work, and energy. There are four basic principles of... Read more

record_voice_over How do vibrating objects produce sound waves that travel through different media, such as air, water, and solids?

Sound is a type of energy that travels through different media, such as air, water, and solids. Vibrating objects, such as vocal cords or the strings... 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

flare Does light travel indefinitely, or does it dissipate over time?

Light is one of the most intriguing phenomena in the universe, and one of its most remarkable properties is that it travels at a constant speed in a... 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

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 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

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

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

contact_support What distinguishes general relativity from a theory of gravity?

General relativity is a theory of gravity, but it is distinct from other theories of gravity in several key ways. The theory was developed by Albert... Read more