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Discovery Channel
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Yes, archaeologists find seismic instruments just as useful as paleontologists. Here's how they work: Scientists first generate sound waves, either by detonating explosives or by hitting a steel plate with a heavy hammer. The sound waves travel into the ground and interact with subsurface features and objects. Sometimes, the sound waves reflect back toward the surface. Other times, they are bent, or refracted. When the waves return to the surface, a measuring device, similar to a seismometer used to record earthquakes, provides data about the waves that can paint a picture of what lies below the surface. Seismic reflection techniques are especially good at finding large landscape features, such as river channels, bays or lakes, or large man-made structures, such as wooden shipwrecks.
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What is the half-life of the radioactive isotope carbon-14?
Answered by Curiosity
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Why is Africa called the cradle of humanity?
Answered by Discovery Channel
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How reliable is radiocarbon dating?
Answered by Curiosity
