free-air correction

[ frē′âr′ ]

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A compensation factor used in gravitational surveys that takes into account the decrease in the force of gravity with increasing altitude, assuming only air intervenes between the observer and sea level. It is equal to -0.3086 mGal per meter above sea level. Also called Faye Correction Compare Bouguer correction.

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Words nearby free-air correction

Fredric, Fredrikstad, free, free agent, free air, free-air correction, free alongside ship, free and clear, free and easy, free as a bird, free ascent

How to use free-air correction in a sentence

In other words, the free thinker defending freedom of thought.
Houellebecq’s Incendiary Novel Imagines France With a Muslim President|Pierre Assouline|January 9, 2015|DAILY BEAST
Tend to your own garden, to quote the great sage of free speech, Voltaire, and invite people to follow your example.
How the PC Police Threaten Free Speech|Nick Gillespie|January 9, 2015|DAILY BEAST
The simple, awful truth is that free speech has never been particularly popular in America.
How the PC Police Threaten Free Speech|Nick Gillespie|January 9, 2015|DAILY BEAST
Cambodia, with its seemingly free press, is also a haven for foreign journalists.
Cambodia’s Smoke-and-Mirrors Democracy|David Shaftel|January 9, 2015|DAILY BEAST

In other words, the free speech exhibited by the folks at Charlie Hebdo was not virtuous—until there was a body count.
Politicians Only Love Journalists When They're Dead|Luke O’Neil|January 8, 2015|DAILY BEAST
What need to look to right or left when you are swallowing up free mile after mile of dizzying road?
The Joyous Adventures of Aristide Pujol|William J. Locke
It seemed to free her of a responsibility which she had blindly assumed and for which Fate had not fitted her.
The Awakening and Selected Short Stories|Kate Chopin
This mania for correction shows itself too in relation to the authorities themselves.
Children's Ways|James Sully
Bells were pealing and tolling in all directions, and the air was filled with the sound of distant shouts and cries.
Davy and The Goblin|Charles E. Carryl
If we can free this State of Yankees, we will accomplish more than your armies down south have.
The Courier of the Ozarks|Byron A. Dunn