So it was that when Mr. Brown and Mr. Sharpe first saw the French tool on exhibition in Paris in 1868, they brought a sample with them to the United States and started Brown & Sharpe in yet another field where it retains its leadership to this day.

The first is a wide-ranging sample of successful tonal analyses.

The triangle in the glass tube contains the first sample of americium ( as the hydroxide ), produced in 1944.

An alternate approach, using a different formula for the variance, first computes the sample mean,

Here, < sub > n </ sub > denotes the sample mean of the first n samples ( x < sub > 1 </ sub >, ..., x < sub > n </ sub >), s < sup > 2 </ sup >< sub > n </ sub > their sample variance, and σ < sup > 2 </ sup >< sub > n </ sub > their population variance.

Next consider the sample ( 10 < sup > 8 </ sup > + 4, 10 < sup > 8 </ sup > + 7, 10 < sup > 8 </ sup > + 13, 10 < sup > 8 </ sup > + 16 ), which gives rise to the same estimated variance as the first sample.

A more numerically stable two-pass algorithm first computes the sample means, and then the covariance:

Vox format files are similar to wave files except that the vox files contain no information about the file itself so the codec sample rate and number of channels must first be specified in order to play a vox file.

This sample was used to synthesize the element ununseptium for the first time in 2009 at the Joint Institute for Nuclear Research, Russia, after it was bombarded with calcium-48 ions for 150 days.

Censuses during independence have been taken 1947, 1960 ( the first comprehensive demographic investigation ), 1970, 1976 ( a sample census ), 1981, 1994 and 2004 and the next would be taken at 2017.

To do this, the sample is first isolated from the vacuum by means of the taps, the vacuum over the sample is then replaced with an inert gas ( such as nitrogen or argon ) and can then be stoppered and removed.

This sample page from Nihon Ōdai Ichiran ( 1834 ) represents the first published account of Emperor Kenzō's life and reign to become available in the West.

When IQ tests are revised, they are again standardized using a new sample of test-takers, usually born more recently than the first.

Ulric Neisser estimates that using the IQ values of today the average IQ of the US in 1932, according to the first Stanford – Binet Intelligence Scales standardization sample, was 80.

The Gram stain is almost always the first step in the identification of a bacterial organism, and is the default stain performed by laboratories over a sample when no specific culture is referred.

This method first requires the computation of the mean of the sample ( m )

When IQ tests are revised they are again standardized using a new sample of test-takers, usually born more recently than the first.

where and are the empirical distribution functions of the first and the second sample respectively.

Marl was the first to sample a breakbeat and reprogram it, which he did with The Honey Drippers ' " Impeach the President " breakbeat on the MC Shan single " The Bridge " from 1985.

Johan Gottlieb Gahn was the first to isolate an impure sample of manganese metal in 1774, by reducing the dioxide with carbon.

There are many types of microscopes, the most common and first to be invented is the optical microscope which uses light to image the sample.

In April 1861, the group published the first sample pages ; later that month, the thirty year old Coleridge died of tuberculosis.

By comparing reaction cells sealed from the same manifold temperature dependency corresponding to activation energies ranging from 11 to 18 Af was observed while dependence on the first power of the light intensity seemed to be indicated in most cases.

For a chemical process the first of these might involve the concentrations of the different chemical species, and the temperature or pressure of the stream.

One of the first to discuss the possibility of an absolute minimal temperature was Robert Boyle.

Much of the ACC transport is carried in this front, which is defined as the latitude at which a subsurface salinity minimum or a thick layer of unstratified Subantarctic Mode Water first appears, allowed by temperature dominating density stratification.

It is the first time the United Kingdom has recorded a temperature over.

Celsius was the first to perform and publish careful experiments aiming at the definition of an international temperature scale on scientific grounds.

In 1911, just three years after helium was first liquified, Onnes working at University of Leiden discovered superconductivity in mercury, when he observed the electrical resistivity in mercury to vanish when the temperature was lowered below a certain value.

The formula that yields this temperature is based on the first law of thermodynamics and takes note of the fact that the heat of combustion is used entirely for heating the fuel, the combustion air or oxygen, and the combustion product gases ( commonly referred to as the flue gas ).

This means that they were at first fragmental rocks like limestone, shale and sandstone and have never been in a molten condition nor entirely in solution, but the high temperature and pressure conditions of metamorphism have acted on them by erasing their original structures and inducing recrystallization in the solid state.

Scottish physician and scientist Joseph Black, who was the first to recognize the distinction between heat and temperature, is said to be the founder of calorimetry.

For a given material, it can have a positive or negative sign or exceptionally it can be zero, and this can depend on the temperature, as it does for water about 4 C. The concept of latent heat with respect to volume was perhaps first recognized by Joseph Black in 1762.

In 1893 he described a " slow-combustion engine " that first compressed air thereby raising its temperature above the igniting-point of the fuel, then gradually introducing fuel while letting the mixture expand " against resistance sufficiently to prevent an essential increase of temperature and pressure ", then cutting off fuel and " expanding without transfer of heat ".

Viscosity increase due to temperature occurs very slowly at first.

The first freezing temperature tends to occur around October 31, with the last around April 4, with the first or greater snowfall occurring around early December.

Operation at room temperature enabled the first practical display device to be made.

The gram was first introduced in 1795, with a definition based on the density of water ( so that at the temperature of melting ice, one cubic centimeter of water would have a mass of one gram ; while the meter at the time was defined as the 10, 000, 000th part of the distance from the Earth's equator to the North Pole ).

Angiosperms radiated sometime in the early Cretaceous, first in the tropics, but the even temperature gradient allowed them to spread toward the poles throughout the period.

The first stable compound of argon was reported in 2000 when argon fluorohydride ( HArF ) was formed at a temperature of.

In this early work, TTAPS carried out the first estimates of the total smoke and dust emissions that would result from a major nuclear exchange, and determined quantitatively the subsequent effects on the atmospheric radiation balance and temperature structure.

Rømer also developed one of the first temperature scales.

Robert Boyle ( 1627-1691 ): formulated Boyle's law, which describes the inversely proportional relationship between the absolute pressure and volume of a gas ( if the temperature is kept constant within a closed system ), wrote The Sceptical Chymist ( seen as cornerstone book in the field of chemistry ), regarded as the first modern chemist, one of the founders of modern chemistry

The Philadelphia Eagles wear their white jerseys at home for preseason games and daytime games in the first half of the regular season from September to mid-October when the temperature is warmer.

In night contests in the first half of the regular season, the Eagles do not need to wear white at home since the temperature is cooler.