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Why is a mounted needle used when preparing microscope slides?
A mounted needle is used when preparing microscope slides to handle small specimens or sections with precision. It allows the user to position and manipulate the specimen without touching it directly, which helps prevent damage and contamination. Additionally, using a mounted needle can help ensure that the specimen is evenly dispersed and properly positioned on the slide for observation.
Why a strip of mirror is mounted under the needle and near the scale of a voltmeter How this may help to rreduce errors while taking a reading?
The strip of mirror is mounted to help eliminate parallax errors when reading the value on the scale of the voltmeter. By aligning the needle's reflection with its actual position on the scale in the mirror, the observer can avoid viewing the needle from an angle, which could result in an inaccurate reading due to parallax. This setup ensures a more precise and accurate reading of the voltmeter.
What is needle magnet?
A needle magnet is a type of small, strong magnet that is shaped like a needle. It is commonly used for picking up small metallic objects like pins, needles, or screws that are hard to reach or see. Needle magnets are also used in compasses to indicate direction.
What material is a compass made from?
A compass is typically made from a magnetized needle mounted on a pivot. The needle is often made of magnetized steel or other ferrous material that can align itself with the Earth's magnetic field. The housing of the compass may be made from materials such as plastic or metal.
How does a magnetized needle work?
The magnetic field of earth exerts a torque on the needle, pulling one end or pole of the needle toward the Earth's North magnetic pole, and the other toward the South magnetic. The needle is mounted on a low-friction pivot point, in better magnetized needle a jewel bearing, so it can turn easily. When the magnetized needle is held level, the needle turns until, after a few seconds to allow oscillations to die out, one end points toward the North magnetic pole.
What is a mounted needle?
A mounted needle is a very thin, sharp needle that is mounted or attached to a handle or rod for various medical or laboratory procedures, such as injections, blood drawing, or specimen collection. The handle provides stability and control for precise and safe usage of the needle.
What is a needle used for during science?
its used to point people
Why is a mounted needle used when preparing microscope slides?
A mounted needle is used when preparing microscope slides to handle small specimens or sections with precision. It allows the user to position and manipulate the specimen without touching it directly, which helps prevent damage and contamination. Additionally, using a mounted needle can help ensure that the specimen is evenly dispersed and properly positioned on the slide for observation.
What is the difference between a hypertonic needle and a hypotonic needle?
A hypotonic needle is a needle that is a non coring needle. A hypertonic needle is a coring needle. Both of these needles are used in IV's with a hypotonic needle used for hypotonic solutions.
What are needle threaders used for?
It is used to help people who struggle with threading a needle to thread a needle.
What is the definition of the word needle tool used in making pottery?
a needle used for clay
What needle is used for chemotherapy?
A small, thin needle called a butterfly needle or a catheter needle is commonly used for chemotherapy. These needles are designed to be gentle on veins and can accommodate the flow of chemotherapy drugs.
Who wrote the science fiction book Needles?
"Needle" was written by Hal Clement .
If you poked a needle can you receive aids?
if you got pricked by the needle and the needle was then used by a person positive with AIDS
What body cavity will the needle be inserted?
it depends on what the needle is being used for
What catheter and needle assembly is used in a needle cricothyroidotomy?
In a needle cricothyroidotomy, the doctor uses a 12- or 14-gauge catheter and needle assembly.
The word crochet used in a sentence?
Needle work done with a needle with a small hook at one end of the needle
