The most significant difference between light and sound is that light is a transverse wave while sound is a longitudinal wave. As a transverse wave, light is capable of traveling in a vacuum, which is how the light from the sun is able to reach the earth.
Sound waves, unlike light waves, can only travel through a solid, liquid, or gas, which is why space is quiet. Another key difference between light and sound is that light moves at a faster speed than sound. According to NASA, the speed of sound is approximately 300 meters per second. However, light travels at a far quicker speed of 300,000,000 meters per second.Learn More
When light travels in a vacuum, its speed is 186,282 miles per second. The fastest aircraft, which is the Boeing-43 scramjet, has a speed of 7,546 miles per hour. If these two speeds are compared, the jet's speed is approximately 0.0004 percent that of light.Full Answer >
Light is a form of energy produced by many chemical reactions. The sun and other stars produce huge amounts of heat and light through fusion and are the source of most visible light in the universe. Other reactions that produce light are combustion and chemoluminescence.Full Answer >
A tritium light is a green, glowing light source that has been chemically created with radioactive hydrogen and phosphor. The tritium light is created by sealing tritium gas inside laser-sealed glass tubes coated with phosphor.Full Answer >
Yes, light can bend through diffraction and refraction. Diffraction is when light bends around a corner or a small opening and fills the larger space beyond it. Refraction is the bending of light when it transitions through different mediums, such as light seen in the air and entering into water.Full Answer >