pound

Definitions

  • "'How would you like to earn twenty pounds reward?'"
    "'How would you like to earn twenty pounds reward?'"
  • WordNet 3.6
    • v pound break down and crush by beating, as with a pestle "pound the roots with a heavy flat stone"
    • v pound place or shut up in a pound "pound the cows so they don't stray"
    • v pound shut up or confine in any enclosure or within any bounds or limits "The prisoners are safely pounded"
    • v pound hit hard with the hand, fist, or some heavy instrument "the salesman pounded the door knocker","a bible-thumping Southern Baptist"
    • v pound partition off into compartments "The locks pound the water of the canal"
    • v pound strike or drive against with a heavy impact "ram the gate with a sledgehammer","pound on the door"
    • v pound move rhythmically "Her heart was beating fast"
    • v pound move heavily or clumsily "The heavy man lumbered across the room"
    • n pound the act of pounding (delivering repeated heavy blows) "the sudden hammer of fists caught him off guard","the pounding of feet on the hallway"
    • n pound a public enclosure for stray or unlicensed dogs "unlicensed dogs will be taken to the pound"
    • n pound a symbol for a unit of currency (especially for the pound sterling in Great Britain)
    • n Pound United States writer who lived in Europe; strongly influenced the development of modern literature (1885-1972)
    • n pound a nontechnical unit of force equal to the mass of 1 pound with an acceleration of free fall equal to 32 feet/sec/sec
    • n pound the basic unit of money in Great Britain and Northern Ireland; equal to 100 pence
    • n pound the basic unit of money in Cyprus; equal to 100 cents
    • n pound the basic unit of money in Egypt; equal to 100 piasters
    • n pound formerly the basic unit of money in Ireland; equal to 100 pence
    • n pound the basic unit of money in Lebanon; equal to 100 piasters
    • n pound the basic unit of money in the Sudan; equal to 100 piasters
    • n pound the basic unit of money in Syria; equal to 100 piasters
    • n pound 16 ounces avoirdupois "he got a hernia when he tried to lift 100 pounds"
    • n pound a unit of apothecary weight equal to 12 ounces troy
    • ***

Additional illustrations & photos:

WHAT DO YOU DO WHEN YOU'RE SEVENTY MILLION POUNDS OUT WHAT DO YOU DO WHEN YOU'RE SEVENTY MILLION POUNDS OUT
ANOTHER FIVE POUNDS A WEEK ANOTHER FIVE POUNDS A WEEK
That there land be worth dree hundred pound an acre That there land be worth dree hundred pound an acre
I see a baker's been fined ten pounds for selling bread less than twelve hours old I see a baker's been fined ten pounds for selling bread less than twelve hours old

Webster's Revised Unabridged Dictionary
  • Interesting fact: The biggest pumpkin the world weighs 1,337.6 pounds
    • Pound A British denomination of money of account, equivalent to twenty shillings sterling, and equal in value to about $4.86. There is no coin known by this name, but the gold sovereign is of the same value.
    • Pound A certain specified weight; especially, a legal standard consisting of an established number of ounces.
    • Pound (Fishing) A kind of net, having a large inclosure with a narrow entrance into which fish are directed by wings spreading outward.
    • Pound A level stretch in a canal between locks.
    • Pound An inclosure, maintained by public authority, in which cattle or other animals are confined when taken in trespassing, or when going at large in violation of law; a pinfold.
    • Pound To comminute and pulverize by beating; to bruise or break into fine particles with a pestle or other heavy instrument; as, to pound spice or salt.
    • v. t Pound To confine in, or as in, a pound; to impound.
    • Pound (Mach) To make a jarring noise, as in running; as, the engine pounds .
    • Pound To strike heavy blows; to beat.
    • Pound To strike repeatedly with some heavy instrument; to beat. "With cruel blows she pounds her blubbered cheeks."
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Century Dictionary and Cyclopedia
  • Interesting fact: The heaviest United States President was William Howard Taft who weighed 332 pounds
    • n pound A fundamental unit of weight or mass. In the English system, both in the more antiquated form retained in the United States and under the improvements established by the British government, two pounds are used—the pound avoirdupois (divided into 16 ounces) for all ordinary commodities, and the troy pound (divided into 12 ounces) for bullion, and in the United States for a few other purposes. But, while troy ounces and their subdivisions are often used, the pound itself is hardly employed. In Great Britain and its colonies the legal original standard weight since 1856 has been the imperial pound avoirdupois, which is a cylindrical mass of platinum, having a groove round it near the top, and marked P. S. 1844 11b. The letters P. S. stand for “Parliamentary Standard.” The so-called “commercial pound” is only an ideal brass pound to be weighed in air. The troy pound in Great Britain is defined as 5,760 grains of which the avoirdupois pound contains 7,000. From 1824 to 1856 the only legal original standard weight in Great Britain was a troy pound constructed in 1758 and denominated the imperial standard troy pound; and the avoirdupois pound was defined as 7,000 grains of which the troy pound contained 5,760. The present imperial pound avoirdupois probably does not differ by grain from the previous avoirdupois pound. Before 1824 the legal standards had been certain weights, both troy and avoirdupois, constructed under Queen Elizabeth in 1588. These standards had not been very accurately constructed, and became worn by continual use; but it is probable that the avoirdupois pound had been equal to 7,002 of our present grains, of which the troy pound may have contained 5,759. The two pounds were not supposed to be commensurable. The Elizabethan avoirdupois pound remains, in theory, the legal avoirdupois pound in the United States; but of late years the practice has been to copy the British imperial pound avoirdupois. Congress has made a certain pound-weight kept in Philadelphia the troy pound of the United States; but this is a hollow weight (and therefore of an inferior character, and such as no European nation would be content to take for a prototype), and consequently its buoyancy is uncertain, and its mass cannot be ascertained with great accuracy. Practically, the British troy pound is copied. The pound avoirdupois was made a standard by Edward III., according to official evidence. From his 56-pound weight Elizabeth's standards were copied, although standards had been made in 1497, direct copies from which still exist. The troy pound was the pound of the city of Troyes, where a great annual fair was held. In 1497 it was made the legal weight in England for gold and silver, and it was generally used for other costly things, such as silk. The old books say it was used for bread; but Kelly, writing before the abolition of the assize of bread, says the pound used for that purpose was one of 7,600 grains, which he calls “the old commercial weight of England.” The monetary pound which the troy pound displaced had been used from Saxon times. It was equal to 5,400 or 5,420 of our present grains, and was divided into 12 ounces or 20 shillings. Contemporaneously with it there existed a merchants' pound containing 15 of the same ounces, making 6,775 grains. The avoirdupois and troy pounds are respectively about 453.6 and 373.26 grams. Other pounds have been in use in England. An act of 12 Charles II. legalizes the Venetian pound for weighing Venetian gold. This pound was a variation of the ancient Roman pound. The pound of Jersey and Guernsey was the French poids de marc. The Scottish Troyes or tron pound varied at different times, but latterly it was about 492 grams, being identical with the Dutch pound. Local pounds of 17, 18, 21, 22, and 24 ounces were in use until recently. Before the metric system, many hundreds of different pounds were in use in Europe, mostly divided into 16 ounces, but many into 12 ounces. The principal types were as follows. Polish pounds, of values clustering about 405 grams, containing 16 ounces of about 25 grams each, from the old Warsaw pound of 378.8 grams to the old Cracow pound of 405.9 grams. The latest Polish pound was 105.504 grams. The pounds of High Languedoc and the “table-weight” pounds of Provence, of values clustering about 410 grams, from the pound of Salon of 376.6 to that of Embrun of 435.0 grams. Some of the table pounds, as that of Ain (438.3 grams), were divided into 14 ounces; so the chocolate pound of Vienna had 28 loth, weighing 490 grams. Also, certain silk-pounds were divided into 15 ounces; but these were of greater weight. This was the case with the ordinary pound of Geneva of 458.9 grams, which was equal to the silk-pound of Lyons. The silk-pound of Patras in the Morea had also 15 ounces, but its value amounted to 480 grams. The 15-ounce merchants' pound of England of 437 grams had ounces of the same value as the old 12-ounce moneyers' pound of the Saxons. Baltic pounds, of values clustering about 422 grams (making the ounce about 26½, grams), from the Russian pound of 409.5174 grams to the Dantzic pound of 435.5 grams. The Swedish pound was 425.04 grams. The Italian pounds, of values clustering about 326 grams (having 12 ounces of about 27 grams each), the great majority between 300 and 350 grams. The following are examples: Grams. Venice, light pound 301.29 Sicily 319.06 Naples, silk-pound 320.70 Milan, light pound 327.02 Rome 339.16 Tuscany 339.58 Piedmont 368.88 Ragusa, in Dalmatia 374.07 Venice, heavy pound 477.12 These pounds would seem to be mostly modifications of the ancient Roman pound, the value of which was, according to the extant standards, 325.8 grams, but according to the coins 327.4 grams. There were, however, anciently other widely different pounds in Italy, from which some of the modern Italian pounds may have been derived. Many of the Italian cities had light and heavy pounds, the latter belonging to the class of pounds about 490 grams, or being still larger and containing more than 16 ounces. Light-weight pounds, having ounces of about 29 grams. These include Spanish and Portuguese pounds, mostly ranging from 458.5 to 460.5 grams, Netherlands pounds. ranging mostly from 463 to 470 grams, and German light-weight pounds, ranging mostly from 467 to 468.5 grams. The Saxon moneyers' pound comes into this category, being 350 grams, or 467 grams for 16 ounces. The avoirdupois pound of 453.6 grams is either a very light Spanish pound or a very heavy Provencal pound. The German pounds are divided not into 16 ounces but into 32 loth. Some of the Spanish pounds contain only 12 ounces, the ounce retaining the same value. The following are examples: Grams. Portugal 459.00 Spain 460.14 Liège 467.09 Antwerp 470.17 Saxony 467.15 Prussia 467.7110 Würtemberg 467.75 Frankfort 467.88 The German 12-ounce medicinal pounds, of values clustering about 358 grams (the ounce about 30), and mostly between 357 and 360. The Nuremberg pound, 357.854 grams, had much currency in different parts of Germany. The heavy-weight pounds of France and Germany, of values clustering about 490 grams (making the ounce about 30¾ grams), being mostly included between 488½ and 498½ grams. But there were a few half-heavy pounds between the heavy and the light, having ounces of 29¾ grams. There were also a few extra-heavy, having ounces of 31¾ grams. The following are German examples: Grams. Nuremberg, goldsmiths' (half-heavy) 477.138 Hamburg 484.12 Cassel 484.24 Lubeck 484.72 Hanover 489.57 Dutch troy 492.16772 Bremen 498.50 Denmark 499.26 Nuremberg, commer. (extra-heavy) 510.22 But the most important pound of this class was the French mark-weight pound, of 489.50585 grams. This unit was so called because it had double the mass of a certain nest of weights, called a mark, which had been preserved in the Paris mint with scrupulous care from time immemorial. There is evidence that Charlemagne, under whom Western medieval coinage commenced, used a 12-ounce pound, the livre esterlin, whose ounces agreed with those of the Paris mark. It is said that Haroun al Raschid sent a standard pound to Charlemagne, and it has commonly been inferred that the livre esterlin was conformed to that, especially as Queipo found an authentic rotl of the same weight. Rotls, however, are of almost all weights, and there is no sufficient evidence of what one Haroun would have sent; besides, the fact that he sent a weight to Charlemagne affords no reason for thinking that Charlemagne would adopt it. We know that Dagobert, 150 years before, had kept a standard of weight in his palace, and it is quite likely that Charlemagne continued the use of that. Indeed, he had neither motive nor power to change the customary weight, such changes being effected only by changes in the course of commerce or by the hands of strong governments. The South German pounds, of values clustering about 560 grams (making the ounce about 35¾ grams), from that of Fiume, in Croatia, of 558.7 to that of Münster of 576.4 grams. The Bavarian and Vienna commercial pounds were, by law. 560 grams. Besides the pounds above mentioned, there were some containing more than 16 ounces. The heavy pounds of Valencia (524.4 grams). Zürich (528.6), and Geneva (550.6) had 18 ounces. There is said to have been a heavy pound (575 grams) in the Swiss canton of Schaffhausen, having 20 ounces. The commercial pound of the Asturias, equal to 690.1 grams, seems to have been divided into 24 ounces. The heavy pound of Milan of 763.13 grams had 28 ounces, that of Bergamo (815.2 grams) 30 ounces, and the meat-pound of Valencia (1069 grams) 36 ounces. See mark, mina, rotl.
    • n pound A money of account, consisting of 20 shillings, or 240 pence, originally equivalent to a pound weight of silver (or of the alloy used). It is usually discriminated from the pound weight by the epithet sterling. The pound Scots was equal to a twelfth only of the pound sterling; it also was divided into 20 shillings, the shilling being worth only an English penny. In the currency of the American colonies the pound had different values: in New England and Virginia it was equal at the time of the Revolution to 15s. sterling, or $3.33⅓; in New York and North Carolina, to 11s. 3d. sterling, or $2.50; in New Jersey, Pennsylvania, Delaware, and Maryland, to 12s., or $2.66⅔; in Georgia, to 18s., or $4.00. These units of value did not at once disappear from local use on the adoption of the decimal system of coinage by the United States.
    • n pound A balance.
    • pound To weigh.
    • pound To wager a pound on.
    • n pound An inclosure, maintained by authority, for confining cattle or other beasts when taken trespassing, or going at large in violation of law; a pinfold. Pounds were also used for the deposit of goods seized by distress.
    • n pound A pond.
    • n pound In a canal, the level portion between two locks.
    • n pound A pound-net; also, either one, inner or outer, of the compartments of such a net, or the inclosure of a gang of nets in which the fish are finally entrapped. See cut under pound-net.
    • pound To shut up in a pound; impound; confine as in a pound; hence, to imprison; confine.
    • pound Figuratively, to keep within narrow limits; cramp; restrain.
    • pound To form into pounds, bins, or compartments.
    • pound To beat; strike as with a heavy instrument and with repeated blows; pommel.
    • pound To inflict; strike: as, to pound blows.
    • pound To pulverize; break into fine pieces by striking with a heavy instrument; crush; reduce to powder.
    • pound To strike repeated blows; hammer continuously.
    • pound To walk with heavy steps; plod laboriously or heavily.
    • n pound A blow; a forcible thrust given to an object, thus generally occasioning a noise or report; also, the sound thus produced.
    • n pound A compartment in an abattoir in which animals can be kept until they are slaughtered.
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Chambers's Twentieth Century Dictionary
  • Interesting fact: The average adult has approximately six pounds of skin
    • n Pound pownd long the unit of weight in the western and central states of Europe, differing, however, in value in all of them—a weight of 16 oz. avoirdupois for general goods, the troy-pound of 12 oz. being for bullion (the troy lb. is defined as 5760 grains, of which the lb. avoirdupois contains 7000): the pound sterling, a money of account: a sovereign or 20s., also represented in Scotland by a note (the Pound Scots is 1⁄12th of the pound sterling, or 1s. 8d
    • Pound of its twenty shillings each is worth an English penny):
    • v.t Pound (slang) to wager a pound on
    • v.t Pound pownd to shut up or confine, as strayed animals
    • n Pound an enclosure in which strayed animals are confined: a level part of a canal between two locks: a pound-net
    • v.t Pound pownd to beat into fine pieces: to bruise: to bray with a pestle
    • v.i Pound to walk with heavy steps
    • Pound (Spens.) a balance
    • ***

Quotations

  • Edward G. Bulwer-Lytton
    Edward%20G.%20Bulwer-Lytton
    “When a person is down in the world, an ounce of help is better than a pound of preaching.”
  • John Wesley
    John%20Wesley
    “Beware you be not swallowed up in books! An ounce of love is worth a pound of knowledge.”
  • Thomas Fuller
    Thomas%20Fuller
    “An ounce of cheerfulness is worth a pound of sadness to serve God with.”
  • Persian Proverb
    Persian Proverb
    “One pound of learning requires ten pounds of common sense to apply it.”
  • Duke of Wellington Arthur Wellesley
    Duke of Wellington Arthur Wellesley
    “Hard pounding, gentlemen: but we shall see who can pound the longest.”
  • Proverb
    Proverb
    “An ounce of practice is worth a pound of preaching.”

Idioms

An ounce of prevention is worth a pound of cure - This expression means that is is better to try to avoid problems in the first place, rather than trying to fix them once they arise.
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Go pound salt - (USA) This means 'Get lost' or 'Go away'('Go pound sand' is also used.)
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Grey pound - (UK) In the UK, the grey pound is an idiom for the economic power of elderly people.
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In for a penny, in for a pound - If something is worth doing then it is a case of in for a penny, in for a pound, which means that when gambling or taking a chance, you might as well go the whole way and take all the risks, not just some.
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Look after the pennies and the pounds will look after themselves - (UK) If you look after the pennies, the pounds will look after themselves, meaning that if someone takes care not to waste small amounts of money, they will accumulate capital. ('Look after the pence and the pounds will look after themselves' is an alternative form of this idiom.)
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Penny wise, pound foolish - Someone who is penny wise, pound foolish can be very careful or mean with small amounts of money, yet wasteful and extravagant with large sums.
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Pink pound - (UK) In the UK, the pink pound is an idiom for the economic power of gay people.
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Pound of flesh - If someone wants their pound of flesh, the force someone to pay or give back something owed, even though they don't need it and it will cause the other person a lot of difficulty.
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Sound as a pound - (UK) if something is as sound as a pound, it is very good or reliable.
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Etymology

Webster's Revised Unabridged Dictionary
AS. pund, an inclosure: cf. forpyndan, to turn away, or to repress, also Icel. pynda, to extort, torment, Ir. pont, pond, pound. Cf. Pinder Pinfold Pin to inclose, Pond

Usage

In literature:

Money expended for this purpose the past year, 439 pounds; from the first, 41,090 pounds 13s.
"George Muller of Bristol" by Arthur T. Pierson
He left ten thousand pounds, saved out of the emoluments of his lucrative places.
"Critical and Historical Essays, Volume III (of 3)" by Thomas Babington Macaulay
Add if you like the following fruits: half a pound of seeded raisins, half a pound of Zante currants, a quarter of a pound of citron.
"The American Housewife" by Anonymous
He had begun at the very bottom as an invoice clerk at a pound a week.
"The Combined Maze" by May Sinclair
Finish cooking at a lowered temperature, allowing 20 or 25 minutes for each pound.
"Scouting For Girls, Official Handbook of the Girl Scouts" by Girl Scouts
Weigh, take pound for pound of sugar, with a pound over for the kettle.
"Dishes & Beverages of the Old South" by Martha McCulloch Williams
The amount was 1,480,000 pounds in 1888; 3,950,000 pounds in 1900; 1,540,000 pounds in 1909; and 4,870,000 pounds in 1919.
"All About Coffee" by William H. Ukers
I have not fifty pounds a year when all is told, and I cannot do more with my money.
"A Bunch of Cherries" by L. T. Meade
Rocka Codda an' Macaroni get ten pound, fifteen pound; an' you get nuzzing.
"The Tale of Timber Town" by Alfred Grace
Mix together a pound of suet, a pound of flour, a pound of currants, and a pound of raisins stoned and cut.
"The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches," by Mary Eaton
For sixty pounds' weight of pork take three pounds of common salt, half a pound of saltpetre, and half a pound of brown sugar.
"The Lady's Own Cookery Book, and New Dinner-Table Directory;" by Charlotte Campbell Bury
Kite blew O. K. and R. C. got one fish (seventy-one pounds), then another (forty-eight pounds).
"Tales of Fishes" by Zane Grey
Soles weighing from three-quarters of a pound to a pound are the most suitable size for frying whole.
"Nelson's Home Comforts" by Mary Hooper
A man who, having a pound a week, can save three pounds, would in England be regarded as a prodigy.
"Ireland as It Is" by Robert John Buckley (AKA R.J.B.)
They were worth two thousand pounds; she gave me sixteen hundred pounds.
"A Singer from the Sea" by Amelia Edith Huddleston Barr
When I had been living for five or six months in Howard Street, my earnings were averaging from ten pounds to fifteen pounds each month.
"The Record of Nicholas Freydon" by A. J. (Alec John) Dawson
Fifty-six pounds sugar, 3 lbs.
"Canadian Wilds" by Martin Hunter
A cavalry horse has, I think, ten pounds of oats a day and twenty pounds of hay.
"Rural Rides" by William Cobbett
Their daily feed is nine pounds of beans and twenty-five pounds of straw.
"The Khedive's Country" by George Manville Fenn
Only about fifty pounds.
"Of High Descent" by George Manville Fenn
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In poetry:

And wonder what kind
Of an ass would do
For a ragged man
With a pound or two.
"Asses" by Padraic Colum
"Well, sparemedays, it beatstha band
'Ow these things workeround!
But after wotcha say," sizzee,
"I'll standja ina pound."
"The Lingothatweuze" by C J Dennis
We watched you in the gloamin' hour,
We watched thee in the mornin' grey;
Tho' thirty thousand pounds they'd gie,
Oh, there was nane that wad betray.
"Will Ye No Come Back Again?" by Carolina Oliphant
But well I know the mother poor,
Three pounds of flesh wrapped in her shawl:
A puny babe that, stripped at home,
Looks like a rabbit skinned, so small.
"Who I Know" by William H Davies
"Thou hast fulfill-ed thy promise aright."
"Then marry," quoth he, "my girl to this knight;
And here," added he, "I will now throw you down
A hundred pounds more to buy her a gown."
"The Beggar's Daughter Of Bethnal Green" by Henry Morley
Young Jamie lo'ed me weel, and sought me for his bride,
But saving a crown he had naething else beside;
To mak the crown a pound my Jamie gaed to sea,
And the crown and the pound--they were baith for me.
"Auld Robin Gray" by Henry Morley

In news:

Boxing 's Pound-for-Pound Top 15.
5 pounds boneless pork shoulder blade (Boston butt), excess fat removed, cut into 10 somewhat rectangular pieces, or 5 pounds thick pork shoulder blade chops.
The senior is projected 120 pounds after qualifying for the state tournament at 113 pounds last season.
2 medium butternut squash (about 4 pounds), peeled and cut into 1-inch chunks or 3 1/2 pounds pre-cut butternut squash chunks (11 cups).
With the cash donations the total pounds is $6,594 (each dollar counts as one pound).
Pound for pound, this little island may have some of the best food in the world.
The 5-year-old pooch is nearly 70 pounds – and that's seven pounds less than when he came to live with foster mom Nora Vanetta.
The Start Me Up Das It landed their third marlin for the year over 400 pounds, with this the largest at 515.6 pounds, by Dale Gingerich.
Denise Fischetti Sal Fischetti, of North Massapequa, who weighed 288 pounds in August 2011, dropped 105 pounds in less than 12 months with diet and exercise.
He set a personal best with a 570-pound squat in March, and the 6-foot-2, 226-pound running back said he was fully recovered and ready for full contact when Arkansas opened fall practice.
He's up about 12 pounds to 212 pounds and says he's a lot stronger than he was a year ago.
Over in Castlegate, two homes have some impressive spreads including a grocery store for zombies where you can find Aggie brains for $20 a pound or Longhorns brains for 5 cents a pound.
Now that the humble potato can cost as much as $6 a pound, the price of lentils -- around 50 cents a pound --makes them hard to pass up.
Taking a look at the results from Saturday's action you can see Mosley doing well at state, in the 110 pound division Samantha Pettis finishes third with a bench of 125, and a clean of 150 pounds.
Today, I weigh 188 pounds, having lost 115 pounds over two years.
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In science:

This isn’t acceptable since the signal of interest in the to 1 kΩ, throws away signal while increasing current noise in the resistor since iN = (cid:112)4kT /R. A Pound-Drever-Hall scheme is at several MHz.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
From the review of the Pound-Drever-Hall scheme in Appendix A, we recall that the error signal is obtained by detecting the phase of the interference signal detected in the optical reflection.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
This section covers two schemes known as the H¨ansch-Couillaud and Pound-Drever-Hall techniques.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
In these cases a widely used alternative to the H¨ansch-Couillaud scheme is the Pound-Drever-Hall method.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
Figure A.7: The Pound-Drever-Hall cavity/laser locking error signal.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
This performance limit is in practice never reached; technical electronic noise, residual amplitude modulation accidentally accompanying the phase modulation in the Pound-Drever-Hall scheme, amplifier noise, and systematic effects in the cavity all degrade performance.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
The Pound-Drever-Hall sensing technique is used to produce the DARM readout signal.
Accurate calibration of test mass displacement in the LIGO interferometers
TS=Tilt Sensor, PDH=Pound-Drever-Hall laser stabilization electronics.
Rotating optical cavity experiment testing Lorentz invariance at the 10^{-17} level
For discrete data, specific modifications of the (BH) procedure have been proposed by Pounds and Chen (cf.
Validation of credit default probabilities via multiple testing procedures
At the same time, many of the sources exhibiting UV absorption, showed a low-energy cut-off in the X-rays (EXOSAT; Turner and Pounds 1989).
The Ultraviolet-X-ray connection in AGN outflows
It became observable with the advent of high precision quantum spectroscopy and was first measured in 1960 by Pound and Rebka (see also ), who used gamma ray spectroscopy of the radiation emitted and absorbed by 57Fe nuclei.
Does an atom interferometer test the gravitational redshift at the Compton frequency ?
The first term is the gravitational redshift, first measured by Pound and Rebka in 1960 .
Precision tests of General Relativity with Matter Waves
It became observable with the advent of high precision quantum spectroscopy and was first measured in 1960 by Pound and Rebka , who used gamma ray spectroscopy of the radiation emitted and absorbed by 57Fe nuclei.
Testing the Gravitational Redshift with Atomic Gravimeters?
This gravitational redshift effect has been initially observed with 57Fe by Pound and Rebka and confirmed later with high precision with a hydrogen-maser . A possible physical interpretation of this effect within our formalism is the following.
Does the speed of light depend upon the vacuum ?
If it did, one could as easily argue that the Pound-Rebka experiment is not a redshift test.
Significance of the Compton frequency in atom interferometry
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