Air core may refer to:
- Air core drilling, a form of rotary air drilling
- Magnetic core
Famous quotes containing the words air and/or core:
“I remember when I was first assigned to jets. I said to the colonel, Colonel, I joined this mans air force to fly an airplane. But nobodys gonna hitch me to no Roman candle.”
—Kurt Neumann (19061958)
“The threadbare trees, so poor and thin,
They are no wealthier than I;
But with as brave a core within
They rear their boughs to the October sky.
Poor knights they are which bravely wait
The charge of Winters cavalry,
Keeping a simple Roman state,
Discumbered of their Persian luxury.”
—Henry David Thoreau (18171862)
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