It's not an idiom that I'm familiar with. It sounds like a description - something is either literally 3 miles long and smaller than a human hair in diameter, or it is an exaggeration of something being very long and thin.
you was close to something,you almost got it
"Keep your hair on" could refer to the Old West, when Indians might scalp you if you were not watchful. I've never heard it said as "keep your hair on" though.I suppose the idiom 'keep your hair on' means that if when a person is stressed the likelyhood that you could lose your hair or even pull it out hence keep it on and keep yourself calmThis may be a mixed idiom - more common is "keep your hat on" which is also means keep calm and don't "blow your top"."Keep your hair on" is advice telling someone to keep calm and not to over-react or get angry.
"Doing" hair means styling it -- cutting, drying, combing/brushing, curling, etc. If someone says "I just do your hair," it sounds as if the other person had asked them something they didn't feel authorized to do, so they said "I'm just the person who styles your hair, not the person you need for that job."
It could mean a large roll of hair on the back or top of the head, or it could mean a large buttocks or it could just mean a large bread roll.
An adjective, usually. It can also be a verb, when the subject is human hair, as in "My hair is graying."The word grey is an adjective.
Atoms are more then a million times smaller then human hair. Hope that helps =3!!
Transistors are made that are smaller than a human hair. Used as part of an integrated circuit chip, which may contain thousands of transistors.
A nanometer is about 1,000 times smaller than the diameter of a human hair. A human hair is typically around 80,000-100,000 nanometers in diameter, while a nanometer is one-billionth of a meter.
A tip of a human hair is typically larger than a transistor. Transistors, being microscopic devices used in electronic circuits, are much smaller in size compared to the diameter of a human hair.
The tip of a human hair is smaller than a transistor. Human hair tips average around 100 micrometers in diameter, while transistors can range from a few nanometers to a few micrometers in size.
Transistors are made that are smaller than a human hair. Used as part of an integrated circuit chip, which may contain thousands of transistors.
A human hair is bigger than a lymphocyte human hair- 200 micrometers, lymphocyte 20 micrometers
Some transistors are as big as a bucket, and some are smaller as an average human hair's width.
A transistor is typically smaller than the tip of a human hair. Transistors are microelectronic devices used in electronic circuits and are designed to be very small, often in the nanometer range. The tip of a human hair is usually larger in comparison.
It's not an idiom because you can figure it out by the context. It means they went bald.
Quit bugging you-an expression.
The growth rate of human scalp hair is: 1/100000000 mph or 10^-8 mph.