What are gravity waves?
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These are what the silver surfer rides upon
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First, it's Tidal Wave not "title",and a Tsunami is another name for that type of "wave". Now, a Monsoon is the same as a Hurricane except they originate in the Pacific Ocean.\n\nTidal Wave, not the tide. Tidal Wave refers to waves larger than 30 feet. It used to be the common name for it, until most oceanographers began to agree the term was not being used correctly, as this occurence has nothing to do with tides.
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The tide comes in and goes out due to gravity, the waves are attributed to wind, techtonic plate activity and weather cycles on the surface of the ocean.  A swell means wave action may be increasing on certain beaches depending on which way the beach faces, i.e. south facing beach.
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Sine Wave\nAn geometric waveform that oscillates (moves up, down or side-to-side) periodically, and is defined by the function y = sin x. In other words, it is an s-shaped, smooth wave that oscillates above and below zero.\n\nInvestopedia Says: The Composite Index of Lagging Indicators, one of three Business Cycle Indicators published by the Conference Board is known to resemble a sine wave since the measures that make up the index (i.e. ratios and interest rates) tend to oscillate between a range of values. For example, inflation is always kept between specified rates and if/once inflation meets or exceeds a specified limit, interest rates will be adjusted to either increase or decrease inflation so it is brought within a target range. Thus, as the rate of inflation increases, decreases or stays the same, interest rates will oscillate up and down to control an undesired rate of inflation.
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A gravimeter is a device designed to measure the local gravitational field. Also sometimes called a gravitometer, a gravimeter is a type of accelerometer. According to the equivalence principle of Albert Einstein, the effects of a gravitational field are rigorously equivalent to acceleration. Therefore, gravimeters are susceptible to vibration which causes small, oscillatory accelerations. This is counteracted by integral vibration isolation and signal processing.
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High frequency gravity waves, if they exist, would be extremely hard to generate, especially for a single isolated human brain with no tools, and extremely hard to detect. \n\nProposals to detect and possible create these waves involve very expensive and complicated equipment. I do not think that it is at all feasible to imagine them being involved in telepathy, which probably does not exist.
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The waves are usually formed by wind action, but can be formed by earthquakes or volcanic explosions (tsunamis). The tides are a result of gravitational effects of the moon and sun.
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The "something" is the direction of travel of the wave.  In transverse waves, the motion of the medium is perpendicular to the direction of travel of the wave.  Some examples are water waves and "the wave" in a stadium.  (People stand up, and the wave rolls around the stadium.)  Longitudinal waves are waves in which the medium moves back and forth in the same direction as the wave.  Some examples are sound waves and compression waves on a slinky.
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Seismic waves are basically waves of energy caused by the sudden breaking of rock within the earth or even a massive explosion such as a volcano. They are the energy that travels through the earth and this energy will then get recorded on seismographs.\n\nThe first kind of seismic waves are known P wave or primary waves. This is the fastest kind of seismic wave. The P wave can move through solid rock and fluids, like water or the liquid layers of the earth. It pushes and pulls the rock as it moves through just like sound waves push and pull the air. If  you have ever heard a  thunder and have also heard the windows rattle at the same time this is an example. The windows rattle because the sound waves were pushing and pulling on the window glass much like P waves push and pull on rock. Usually we only feel the bump and rattle of these waves.\n\nThe second type of seismic wave is the S wave or secondary wave, which is the second wave you feel in an earthquake. An S wave is slower than a P wave and can only move through solid rock. This wave moves rock up and down, or side-to-side.\n\nThese 2 types of waves are known a body waves, next come surface waves or L waves. L waves exist because of the Earth’s surface.  They are largest at the surface and decrease in amplitude with depth. L waves are known only to move along the surface of the earth. There speeds vary depending on the material, rock or soil, forming the surface. These waves cause the surface features such as buildings to move from side-to-side.
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They are not tidal waves. Tidal waves happen twice a day when the tide goes in and out. A tsunami is caused by an underwater earthquake or major disturbance on the floor of the ocean. The last big one was on July 17th, 2006
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First of all, IT'S GRAVITY BABY! Not really, but it does play a part. It's mostly the force of the wave, working with gravity to move that board at that certain speed.\nsomewhat like that
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Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of altitude.\n\nAtmospheric refraction near the ground produces mirages and can make distant objects appear to shimmer or ripple.
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The gravitational pull of the earth pulls the waves up and down while the earth is rotating.
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Primary and Secondary Waves \n\nAlthough it seems that most activities occur on the surface, the inside of the planet is a constant chaos of seismic, tectonic and volcanic havoc. To understand what occurs inside the Earth, scientists study the type of motions that are responsible for earthquakes, volcanoes and other natural disasters with something called diagnostic waves. These waves travel at speeds ranging from 3 to 15 kilometers (1.9 to 9.4 miles) per second and categorize the four different types of seismic movements.\n\nTwo of the four waves travel about the surface of the Earth while the other two, Primary (P) or compression waves and Secondary (S) or shear waves travel through the interior of the Earth. Primary waves manipulate the medium (rock or liquid) that they travel through by compressing and dilating it. These waves hold similar characteristics to sound waves. \n\nUnlike Primary waves, Secondary waves move twice as slow as P waves and are only able to travel through rock. However, both Primary and Secondary waves are bent or refracted at points when they encounter the threshold between two different media. For example, when a primary or secondary wave propagates through rock, it refracts when it hits water, or a point when differing physical properties meet. They also reduce speed when moving through higher temperatures. The behavior of these waves around areas can aid scientists to locate seismic discontinuities.\n\nFor more details ...\nhttp://library.thinkquest.org/28327/html/universe/solar_system/planets/earth/exploration/primary_secondary_waves.html
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Sound waves are longitudinal waves. They vibrate back and forth in the direction that they aremoving. Sound travels at about 1100 feet /sec.\n\nLight waves are transverse waves, part of the electromagnetic spectrum. they vibrate up and down similar to water waves. They travel at 186,000 miles/sec.
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Electromagnetic waves. When a wave reaches a surface seperating two media refraction occurs.
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Light waves are electromagnetic energy, which can be transported across a medium. If it helps, light waves can be thought of as photons, massless particles that fly through space. No medium is required for transport.\n\nSound waves however are a disturbance OF the medium, as ocean waves are a disturbance of the water. Your eye and ear are very different in how they operate, one being capable of detecting electromagnetic energy, the other acoustic energy.