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The base of a seismograph must be set in bedrock to ensure accurate measurements of ground motion. Bedrock provides a stable and rigid foundation that minimizes vibrations from surface activity and environmental noise, allowing the seismograph to detect even subtle seismic waves. If the instrument were placed on less stable soil or structures, it could pick up false signals or distort the true seismic data, compromising the reliability of earthquake detection and analysis.
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What is a set of three base pairs called?
A set of three base pairs in DNA is called a codon. Each codon codes for a specific amino acid during protein synthesis.
What is the difference between a Siesmograph and a siesmogram?
SiesmographEarthquakes generate seismic waves which can be detected with a sensitive instrument called a seismograph. Advances in seismograph technology have increased our understanding of both earthquakes and the Earth itself.Perhaps the earliest seismograph was invented in China A.D. 136 by a m an named Choko.How Do I Read a Seismogram?When you look at a seismogram, there will be wiggly lines all across it. These are all the seismic waves that the seismograph has recorded. Most of these waves were so small that nobody felt them. These tiny microseisms can be caused by heavy traffic near the seismograph, waves hitting a beach, the wind, and any number of other ordinary things that cause some shaking of the seismograph. There may also be some little dots or marks evenly spaced along the paper. These are marks for every minute that the drum of the seismograph has been turning. How far apart these minute marks are will depend on what kind of seismograph you have.Figure 1 - A typical seismogram.So which wiggles are the earthquake? The P wave will be the first wiggle that is bigger than the rest of the little ones (the microseisms). Because P waves are the fastest seismic waves, they will usually be the first ones that your seismograph records. The next set of seismic waves on your seismogram will be the S waves. These are usually bigger than the P waves.Figure 2 - A cross-section of the earth, with earthquake wave paths defined and their shadow-zones highlighted.If there aren't any S waves marked on your seismogram, it probably means the earthquake happened on the other side of the planet. S waves can't travel through the liquid layers of the earth so these waves never made it to your seismograph.The surface waves (Love and Rayleigh waves) are the other, often larger, waves marked on the seismogram. They have a lower frequency, which means that waves (the lines; the ups-and-downs) are more spread out. Surface waves travel a little slower than S waves (which, in turn, are slower than P waves) so they tend to arrive at the seismograph just after the S waves. For shallow earthquakes (earthquakes with a focus near the surface of the earth), the surface waves may be the largest waves recorded by the seismograph. Often they are the only waves recorded a long distance from medium-sized earthquakes.
Have nickel bronze cutlery set with 3 headed elephant on the base what is it worth?
The value of your nickel bronze cutlery set with a three-headed elephant design on the base will depend on factors such as its age, condition, and the reputation of the maker. You may want to consult with antique dealers or online auctions to get an estimate of its worth.
Flowering tundra plants must bloom and set seed quickly because?
The summers are very short
Why must flowering tundra plants must bloom and set seed quickly?
Flowering tundra plants must bloom and set seed quickly in order to take advantage of the short Arctic growing season before winter sets in. This ensures that the plants can reproduce successfully and produce seeds that will survive the harsh conditions of the tundra.
What year is the Flintstones set in?
Answer: In Bedrock
What is measured on a seismogram?
It is the recording of a movement caused by an earthquake or explosion is set on a seismograph.
How do you set the base timing on a 1997 350 with a timing light?
trying to set base timing on a 97 Chevy c1500 with a 5.7 engine the wire to disconnect to set base timing is ?
How do glacial grooves form?
Glacial grooves form when rocks and debris trapped in the base of a moving glacier scrape along the bedrock, leaving long scratches or gouges in the surface. These grooves are typically created by the abrasive action of the glacier as it moves over the bedrock, grinding away material and leaving behind distinctive marks.
Do you have to disconnect the computer to time an 1991 camaro with a 305?
there is a brown or brown/white wire in the harness near the firewall. it must be disconnected to set base timing
What must you know about a data set before you can use the empirical rule?
The data set must be unbiased, the outcomes of the trials leading to the data set must be independent. The data set must be large enough to allow the Law of Large Numbers to be effective.
This set is part of the establish the base deployment phase.?
Industrial Operations set
To set a hard drive password or the user password you must first set a?
To set a hard drive password or the user password you must first set a? Supervisor or Administrator password
What is a fixed base router and a plunge router?
A plunge router allows you to start above the material surface and lower (plunge) the bit into the material much like a drill press. A fixed base router must have the bit depth set before turning it on.
Who will set priorities for the many tasks involved in the air base defense?
Base Commander
Who will set priotities for the many tasks involved in air base defense?
Base Commander
Who will set priorities for the many tasks involved in air base defence?
base commander
