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Dew-point

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Dew-point (Meteor) The temperature at which dew begins to form. It varies with the humidity and temperature of the atmosphere.
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Century Dictionary and Cyclopedia
  • Interesting fact: The name of the point at which condensation begin is called the dew point.
    • n dew-point The temperature indicated by the thermometer when dew begins to be deposited; that temperature of the air at which the moisture present in it just saturates it. See saturation. The more humid the atmosphere, the less the difference between its temperature and that of the dew-point, and vice versa. When the air is saturated with moisture and any colder body is brought into contact with it, deposition of moisture or dew immediately takes place on its surface. See hygrometer.
    • ***

Usage

In literature:

Water boiled at 211 degrees and a fraction; but there was no dew point.
"Expedition into Central Australia" by Charles Sturt
Mom Rinkle, whose "rock" is pointed out beside the Wissahickon, in Philadelphia, "drank dew from acorn-cups and had the evil eye.
"Myths And Legends Of Our Own Land, Complete" by Charles M. Skinner
The heavy dew was shaken in large drops out of the wet flapping sails, against which the reef points pattered like hail as the vessel rolled.
"Tom Cringle's Log" by Michael Scott
The dew-point has been a puzzle to most persons.
"Atlantic Monthly Vol. 6, No. 33, July, 1860" by Various
It was covered with a dew of fine pin-point yellow globules.
"Branded" by Francis Lynde
I was just going to take the dew-point when you came in.
"The Boy with the U. S. Weather Men" by Francis William Rolt-Wheeler
This temperature is the dew point of the air after it passes up into the drying chamber above the coils.
"Seasoning of Wood" by Joseph B. Wagner
In fog the dew point is at the surface of the earth; in summer it may be several thousands of feet above.
"Notes and Queries, Number 206, October 8, 1853" by Various
The ground was covered with long, thick, pointed grass, very wet with the dew.
"Notes in North Africa" by W. G. Windham
It was flat, or gently rolling, and now the dew lay upon it like the sunlight on the points of the waves of the sea.
"The Induna's Wife" by Bertram Mitford
The covering acts as a screen, which prevents the heat from radiating to the dew point.
"Nature's Miracles, Volume 1" by Elisha Gray
A thousand little drops of rosy juice appeared on the flesh, like so many drops of dew, to such a point was it roasted.
"Luxury-Gluttony:" by Eugène Sue
That point of temperature at which the moisture of the air first becomes visible is known as the dew-point.
"The Atlantic Monthly, Volume 11, No. 68, June, 1863" by Various
If the dew-point is below 32degF., the vapour will, when the dew-point is reached, pass directly into the solid form and be deposited as hoar-frost.
"The New Gresham Encyclopedia" by Various
At the first indication of the deposit of dew the reading of the internal thermometer is taken: which is the dew-point.
"A Treatise on Meteorological Instruments" by Henry Negretti
In all haze the temperature is above the dew-point.
"Meteorology" by J. G. M'Pherson
D - Dew Point less than Air.
"Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836" by Robert FitzRoy
Do you know, Ansel, how to ascertain the dew point at any time?
"Curiosities of Heat" by Lyman B. Tefft
Heat and Moisture; relative humidity, dew point, formation of dew, fog, rain, snow, etc., evaporation, effects, conditions.
"Physics" by Willis Eugene Tower
In the twenty-eighth line of this table and in the seventh column will be found the dew-point, viz., 41 deg.
"Practical Exercises in Elementary Meteorology" by Robert DeCourcy Ward
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In poetry:

This morn I left my bed
Upon the point of day,
And to the garden sped
Ere passed the dews away.
"Song" by Jean Froissart
`And turning from her grave, I met
Beside the churchyard yew
A blooming girl, whose hair was wet
With points of morning dew.
"The Two April Mornings" by William Wordsworth
With a handful of stemless violets, wet
With the drops of gathering dew,
And asked of the wonderful points of light
That shone in the distant blue.
"A Thought Of The Stars" by Mary Gardiner Horsford
Come, just a sip of the wild man's nectar
Shall show you life from a point of view
As old as the oldest stones of the mountains,
And yet as fresh as dew!
"A Taunt" by Maurice Thompson
Can there be sadness anywhere
In the world to-night? Or tears or sighs
Beneath such festal moon and skies?
Can there be memory or despair?
What is it, beloved? Why point you there,
With sudden dew in those dearest eyes?
"Barcarole III" by Susan Coolidge
The minister's long fields are still with dews of summer wet;
The roof that sheltered Mistress Hale tradition points to yet.
Green be her memory ever kept all over Cape-Ann-Side,
Whose unobtrusive excellence awed back delusion's tide!
"Mistress Hale Of Beverly" by Lucy Larcom

In news:

Were dew point & heat index records " agriculturally induced.".
Vaisala: Four things you need to know about compressed air dew point sampling.
With humidity and dew points on the rise, and thunderheads building in the afternoon heat, the atmosphere is signaling a change.
When meteorologists talk about current conditions, they mention temperature, heat index, winds, humidity, and dew point, amongst other things.
Dew Point versus Humidity.
DeFelsko's new PosiTector DPM Dew Point Meter measures and records a variety of climatic conditions with two probe options and easy conversion to other gage functions.
Based on data from the Moorhead Automated Weather Observing System (AWOS), there was a period of time when the dew-point temperature reached 88 degrees Fahrenheit.
But, was the dew-point actually that high.
There are several reasons to question the precision of the dew-point sensor.
Over the last few days, I've blogged about heat index values of 130 or higher in parts of Iowa and Minnesota and dew point s (a measure of humidity) over 80 (any dew point over 70 means really high humidity).
Over the last few days, I've blogged about heat index values of 130 or higher in parts of Iowa and Minnesota and dew points (a measure of humidity) over 80 (any dew point over 70 means really high humidity).
42 PM on May 12, 2011 by Paul Huttner Filed under: Volcanoes, dew point.
The storm was gobbling up and plowing through mid-80 temperatures and upper-60 dew points.
The HygroPalm is a highly accurate hand-held indicator that displays relative humidity, temperature, and dew point measurements.
The 4th of July will continue to be steamy with high temperatures in the mid to upper-nineties and dew points in the low-seventies.
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In science:

This includes a safe range for humidity, dew point depression, precipitation, wind speed, and airborne particles. 11.
Bringing the Visible Universe into Focus with Robo-AO
Dehumidification will be needed only to keep the enclosure air below the dew-point. A gas fire protection system will be used to avoid any need to bring ICW water to the building.
Bringing the SciBar Detector to the Booster Neutrino Beam
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