The angular spacing of the fringes,, is given by

For example, if two slits are separated by 0. 5mm (), and are illuminated with a 0. 6μm wavelength laser (), then at a distance of 1m (), the spacing of the fringes will be 1. 2mm.

( b ) The fringes have been shifted to the left by 1 / 100 of the fringe spacing.

( c ) A small step in one mirror causes two views of the same fringes to be spaced 1 / 20 of the fringe spacing to the left and to the right of the step.

( e ) The two sets of fringes have been shifted to the left by 1 / 100 of the fringe spacing.

By adjusting the tilt, which adds a controlled phase gradient to the fringe pattern, one can control the spacing and direction of the fringes, so that one may obtain an easily interpreted series of nearly parallel fringes rather than a complex swirl of contour lines.

In practice a technique called vestigial sideband is used to reduce the channel spacing, which would be at least twice the video bandwidth if pure AM was used.

Many of these lasers actually lase in several longitudinal modes at the same time, and beats between the slightly different optical frequencies of those oscillations will in fact produce amplitude variations on time scales shorter than the round-trip time ( the reciprocal of the frequency spacing between modes ), typically a few nanoseconds or less.

At 4. 2 K it has a rhombohedral crystal system ( with a nine-layer repeat spacing ); at higher temperatures it transforms to face-centered cubic and then body-centered cubic.

In a typical keyboard layout, black note keys have uniform width, and white note keys have uniform width and uniform spacing at the front of the keyboard.

To enable the user to reach a target level of achievement ( e. g. 90 % of all material correctly recalled at any given time point ), the software adjusts the repetition spacing interval.

Bravo, a document preparation program for the Alto produced at Xerox PARC by Butler Lampson, Charles Simonyi and colleagues in 1974, is generally considered the first program to incorporate WYSIWYG technology, displaying text with formatting ( e. g. with justification, fonts, and proportional spacing of characters ).

This may seem odd today, given the far closer solder pad spacing in use now, but in the 1970s, the heyday of the QIL, bridging of neighbouring solder pads on DIL chips was an issue at times,

The n-th order intermodulation products then appear at n times the frequency spacing of the input tones.

Ignoring punctuation, spacing, and capitalization, a monkey typing letters uniformly at random has a chance of one in 26 of correctly typing the first letter of Hamlet.

Seeds at the rate of 30 kilograms / hectare ( 9 – 11 lb / acre ) are planted at a spacing of 45-60 x 20 – 30 cm ( 18 – 24 x 8 – 12 in ) in February – March and June – July.

In planting, wider rows ( generally 75 cm ( 30 in ) or more ) are used, and the intent is to have precise, even spacing between individual seeds in the row ; various mechanisms have been devised to count out individual seeds at exact intervals.

See also Double spacing at the end of sentences.

Like the RUC, the Rapid Refresh model also runs hourly out to 18 hours on a 13-km grid spacing, but also covers a wider area and includes an experimental high-resolution mode that offers 3-km resolution at 15-minute intervals A backup version of the RUC continues to run.

Channel plans vary, but a typical system would use 40 channels at 100 GHz spacing or 80 channels with 50 GHz spacing.

WDM wavelengths are positioned in a grid having exactly 100 GHz ( about 0. 8 nm ) spacing in optical frequency, with a reference frequency fixed at 193. 10 THz ( 1552. 52 nm ).

Such aeromag surveys are typically undertaken with 400 m line spacing at 100 m elevation, with readings every 10 meters or more.

At an exploration lease scale, the survey may be followed by a more detailed helimag or crop duster style fixed wing at 50 m line spacing and 50 m elevation ( terrain permitting ).

The indicating scale is constructed so that when its zero point is coincident with the start of the data scale, its graduations are at a slightly smaller spacing than those on the data scale and so none but the last graduation coincide with any graduations on the data scale.

A retrograde vernier is similar to the direct vernier except its graduations are at a slightly larger spacing.

The perforations were at a standard ½ inch ( 12. 7 mm ) spacing, the axles were 8-gauge, and the nuts and bolts used < small >< sup > 5 </ sup >/< sub > 32 </ sub ></ small > inch BSW threads.

Finally, students have difficulties optimally setting self-imposed deadlines, with results suggesting a lack of spacing before the date at which tasks are due.

For the normal Mercator projection ( on the ellipsoid ) this function defines the spacing of the parallels: if the length of the equator on the projection is E ( units of length or pixels ) then the distance, y, of a parallel of latitude φ from the equator is

Part of the reason for this spacing was to achieve the correct distance between rowing stations and to create space for the chests used by Norse sailors as thwarts ( seats ).

Solar System diagram showing planetary spacing in whole numbers, when the Sun-Neptune distance is normalized to 100.

The remains as we see them give evidence of the artist's power both of imitating natural detail with minute fidelity and of spacing his figures in a landscape with a large sense of air and distance ; and they amply verify two separate statements of Vasari concerning him: that " he delighted in drawing landscapes from nature exactly as they are, whence we see in his paintings rivers ; bridges, rocks, plants, fruits, roads, fields, cities, exercise grounds, and an infinity of other such things ," and that he was an inveterate experimentalist in technical matters.

* The single external sprocket means that the wheel can have a hub with more distance between its flanges and be built with no or much less dish, making it laterally stronger than a similar wheel with narrower flange spacing and more dish to accommodate multiple sprockets.

; interval: the spacing between carriers, measured either by distance or time

However, if a piece of metal is located sufficiently close to a twin-lead line, within a distance comparable to the wire spacing, it will be significantly closer to one wire than the other.

This backward motion — which is limited to a maximum distance equal to the spacing between the teeth — is called backlash.

The distance at which this plane lies behind the wall depends only on the spacing between identical elements.

For example, 100 evenly-spaced sample points suffice to sample a unit interval with no more than 0. 01 distance between points ; an equivalent sampling of a 10-dimensional unit hypercube with a lattice with a spacing of 0. 01 between adjacent points would require 10 < sup > 20 </ sup > sample points: thus, in some sense, the 10-dimensional hypercube can be said to be a factor of 10 < sup > 18 </ sup > " larger " than the unit interval.

For example, 10 < sup > 2 </ sup >= 100 evenly-spaced sample points suffice to sample a unit interval ( a " 1-dimensional cube ") with no more than 10 < sup >- 2 </ sup >= 0. 01 distance between points ; an equivalent sampling of a 10-dimensional unit hypercube with a lattice that has a spacing of 10 < sup >- 2 </ sup >= 0. 01 between adjacent points would require 10 < sup > 20 </ sup > sample points.

In general, with a spacing distance of 10 < sup >- n </ sup > the 10-dimensional hypercube appears to be a factor of 10 < sup > n ( 10-1 )</ sup > " larger " than the 1-dimensional hypercube, which is the unit interval.

In close-packing, the center-to-center spacing of spheres in the x – y plane is a simple honeycomb-like tessellation with a pitch ( distance between sphere centers ) of one sphere diameter.

PRF is usually associated with pulse spacing, which is the distance that the pulse travels before the next pulse occurs.

At that distance the spacing between the Australians was now greater than the maximum effective range of their rifles and machine-guns.

The Z ( ahnreihen )- spacing, the average distance in tooth position between teeth of the same eruption stage, was rather low with Hyspilophodon, about 2, 3.

The characteristics of this device are attributable to the relationship between the physical size of the unit, in particular the air path distance, and the spacing of the plates.

17 cm roughly equals the human ear distance and therefore provides the same interaural time difference ( ITD ) or more, depending on the spacing between microphones.

A spacing rule specifies the minimum distance between two adjacent objects.

Minimum interchange spacing should be in urban areas and in rural areas ; collector / distributor roads or other configurations that reduce weaving can be used in urban areas to shorten this distance.

He also relied on complicated calculations based on spacing and distance to argue that Adair had only half the number of men he claimed to have commanded at the Battle of New Orleans.

Since blue is a shorter wavelength than red, this indicates that the distance of layer spacing is reduced by heating through the liquid-crystal state.

The players sit around a table, and a number of pens ( one less than the number of players ) are laid with equal spacing in the center of the table, at an equal distance from each of the players.