Spongy materials are the most difficult for sound to travel through. Vacuum is the best acoustic insulation but it doesn't really count for the purpose of this question, since it is not a material but a lack of material.
Sound needs a medium in order to travel. Thus, it cannot travel through vacuums, like space.
Sound will not travel through a vacuum.
Seismic waves are mechanical waves.
Earthquakes occur frequently. They create different types of waves that travel through the earth at a variety of speeds. Certain waves are also reflected and refracted by some materials. As a result it is possible to tell where boundaries are between two different types of materials. By knowing the speed the various waves travel through the various materials, it is also possible to know the density of various materials. Geologists know the material ejected by volcanoes of various types. The density in the center of the earth is the same as a mixture of iron and nickel. Just above the center of the earth is heavy material, but is a guess!
electrical
there are three types...................textbooks, newspapers, instructional manuals.........................thats it!
Mechanical waves.For example, sound waves, ocean waves, etc.Many waves need a medium to travel: sound waves, water waves, and seismic waves.Electromagnetic waves do not need a medium.
Sound travels through all matter but some materials either absorb sound, reflect sound, or just slow sound down.
sound can travel through any solid, liquid or gas such as :metal, wood, water and air.
TRANSCULENT and transparent materials ...............................................................Gho$t
Heat can and does travel through all matter. It's just that some materials carry it much slower than others, and these are called insulators. The best ones being foam type materials.
Sound travels through brick at the speed of 3650 meters per second. Sound is a mechanical wave that can travel through many different types of media, such as water, cork, gold, and glass.
The type of light, the distance it has to travel and the substance that it passes through.
Being the 11th largest economy in the world, not only finished products travel through Mexico; foodstuffs, raw materials and capital goods move through roads, railroads and shipping lanes.
A sound wave. This is because the sound wave is transverse meaning it needs a medium to travel through. Most solids will block visible light but not other types of light. The solid works best for the transverse because the atoms are close together making it easy to transfer the wave through the material.
Sound is a vibration that passes through matter. Sound is capable of traveling through virtually any type of matter, although some types allow sound to travel further or faster. Rock, however, allows sound to travel much more quickly than air does. In fact, elephants communicate with each other from miles away by sending very low pitch rumbling sounds through their feet and into the ground, and then, using their feet, they can detect sounds coming from other elephants.
current
There are different types of glass so there is not a single answer. The speed of sound is approx 4,000 metres per second ( range 3500 - 4500 ms^-1).
All types of radiation can travel through space.