Snow affects sound Freshly fallen snow absorbs sound waves, giving everything a seemingly hushed, quieter ambience after a flurry. But if the snow then melts and refreezes, the ice can reflect sound waves making sound travel further and clearer. There are hundreds of words for it It’s often...
3. What is the importance of coral reefs? Coral reefs support marine organisms, protect coastal areas from tsunamis and storms and also support the tourism industry. They act as barriers and protect coastal regions from strong and powerful waves. 4. How do corals benefit humankind? Corals are ...
Like you can detect oxygen, carbon dioxide, radio waves and electricity even though you can't see them either. The ozone "hole" is actually an area of ozone thinning in the stratosphere which extends from about 15-50 km (10-30 miles) above the earths surface in the atmosphere, it ...
Ultraviolet rays are waves of light that come from the sun. In this lesson, learn about different types of ultraviolet rays, the characteristics and effects of ultraviolet rays, and ways people can protect themselves from their dangers.
Stony, black, and thorny corals of the Hexacorallia order also have external skeletons and can live in shallow tidal areas or up to 20,000 feet under the waves. Some of these corals are solitary and others make up colonies. Colonial polyps measure from 0.04 inches to 1.2 inches in ...
When we speak, we hear our voices in two ways: through air conduction and bone conduction. Air conduction transmits sound waves through the air and into our ears, the same way we hear other sounds around us. Bone conduction, however, involves the transmission of sound vibrations through the...
Increased ocean heat content contributes to rising sea levels, coral bleaching, melting glaciers and ice sheets as well as ocean heat waves. The heat stored in the ocean will eventually be released and will contribute to increases in the Earth's surface temperature, according toNOAA. ...
There is much to learn about the UV, visible, near-infrared and beyond character of the upper atmosphere of Venus, and NASA's DAVINCI mission will carry a new class of "hyperspectral" camera to measure it at very high spectral resolution for the first time from flybys. Why is Venus ...
Despite his mysterious, evasive nature, Invader is full of pithy quotes about his unique artistic practice. Commenting on his choice of — theSpace Invader— Invader once remarked: ‘As these creatures are made of pixels they are in some sorts ready-made for tile reproduction […] their names...
Scattering Rayleigh scattering accounts for the majority (about 96 percent) of attenuation in optical fiber. Light travels in the core and interacts with the atoms in the glass. The light waves elastically collide with the atoms, and light is scattered as a result. Some scattered light is ...