#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

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

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

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

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

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

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

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

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