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.
The 5% sucrose solution is hypotonic because it has a lower concentration of solute compared to the 10% solution. The 10% sucrose solution is hypertonic because it has a higher concentration of solute compared to the 5% solution.
There is no physical difference between a dragonfly and a darning needle. The name "devil's darning needle" was given to dragonflies in Europe because they were thought to be evil or sinister.
A beading needle is longer, more flexible, and far thinner than a regular sewing needle.
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Yes, if the person has experience with the various types of needles. There is a subtle but distinct difference that can be felt: the tip of a ball point needle will be less sharp than that of a standard needle.
Needle holder is similar to hemostat, the main different is at the jaw area where needle holder is smaller and thicker compared to heamostat.
A needle has an "eye" at the other (non-sharp) end, to allow you to pull a thread. A pin doesn't.
needle leafes are sharp and broud leafs are bigger and rounder
The Washington Monument was originally made in the U.S. and Cleopatra's Needle was made originally in Egypt. Cleopatra's Needle has engravings on it and the Washington Monument doesn't.
If you mean the difference between a compass and a compass rose: The compass is the complete instrument. The compass rose is the degree wheel printed under the needle.
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A dial caliper give a measure on the needle of a dial. Digital shows you a number.