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Page "Interferometry" ¶ 32
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Two and optical
Two years later, in 1933, Ruska built an electron microscope that exceeded the resolution attainable with an optical ( lens ) microscope.
Two of the primary methods for identifying rocks in the laboratory are through optical microscopy and by using an electron microprobe.
* Two or more mirrors that form an optical resonator.
Two compounds that are enantiomers of each other have the same physical properties, except for the direction in which they rotate polarized light and how they interact with different optical isomers of other compounds.
Two gyrotropic materials with reversed rotation directions of the two principal polarizations, corresponding to complex-conjugate ε tensors for lossless media, are called optical isomers.
Near the source of the leat there is a curious optical illusion ; viewed from the opposite bank of the West Dart River between Two Bridges and Wistman's Wood, it appears to flow uphill.
Two methods for storing information on the film were employed: " magnetic IX " and " optical IX ".
* Two photon optical chip
Two types of optical tracking mechanisms exist:
Two other stars, located at angular separations of 44 and 370 arcseconds, are likely optical companions that are not physically associated with the system.
Two streams of stars seem to cascade down like waterfalls due to compositing | optical effects.
Two of the larger factors are: quantum efficiency, which indicates how well incident optical photons are absorbed and then used to generate primary charge carriers ; and total leakage current, which is the sum of the dark current and photocurrent and noise.
Two sets of independent follow-up spectroscopy data suggested that this was again another optical transient rather than a supernova, possibly an outbursting Luminous Blue Variable star according to one spectrum, as earlier predicted from the nature of the candidate mid-infrared progenitor.
Two scientific awards have been created in his honour ; the David Bates Medal of the European Geophysical Society is awarded yearly for outstanding contributions to planetary and solar system science, and the Institute of Physics have the David Bates Prize, awarded in even dated years, for distinguished achievement in atomic, molecular, optical and plasma physics.
Two special cases of the Kerr effect are normally considered, these being the Kerr electro-optic effect, or DC Kerr effect, and the optical Kerr effect, or AC Kerr effect.
It is equipped with a number of instruments, including the Two Degree Field facility ( 2dF ), a robotic optical fibre positioner for obtaining spectroscopy of up to 400 objects over a 2 ° field of view simultaneously ; the University College London Échelle Spectrograph ( UCLES ), a high-resolution optical spectrograph which has been used to discover many extrasolar planets ; and IRIS2, a wide-field infrared camera and spectrograph.
Two of the optical telescope domes can be seen on the roof.
Two gyrotropic materials with reversed rotation directions of the two principal polarizations are called optical isomers.
Two different types of proximity fuze can be fitted: the standard Strizh ( Swift ) optical fuse, which can be replaced with a Kolibri active radar fuse.
Two CCD star sensors were used for optical position sensing of guide stars and attitude determination of the spacecraft.
Two mirror images of a chiral molecule are called enantiomers or optical isomers.
Two low frequency control tones were printed on the film's mono optical or magnetic track ; from the projector, the tones entered a control box in the projection booth, which fed low frequency pseudorandom noise to 1, 600 watt BGW 750 audio amplifiers driving the speakers.
Two such points are called a stigmatic pair of the optical system.

Two and constructed
Two walls of concrete blocks are constructed at least 20 inches apart.
Two binary abaci constructed by Dr. Robert C. Good, Jr., made from two Chinese abaci
Two years later, the Clam Lake Canal was constructed between Big and Little Clam lakes, present-day Lakes Mitchell and Cadillac.
Two others were installed in Arctic locations, all constructed as part of the US Army Nuclear Power Program.
It constructed a narrative of cultural continuity, set in opposition to the violent disjunctions of Revolutionary France, a comparison common to the period, as expressed in Thomas Carlyle's The French Revolution: A History and Charles Dickens ' Great Expectations and A Tale of Two Cities.
Two decades earlier, the Canadian town of Saint-Jean-Vianney, Québec, also constructed on a Leda clay base, had been abandoned after a landslide on May 4, 1971, which swept away 41 homes, killing 31 people.
Two 35-storey twin towers are projected to be constructed in the Sigma area in Zorilor, while the Floreşti area will host a complex of three towers with 32 levels each.
Two railroads were constructed about 1879 forming an intersection where the Village of Reddick now stands.
Two garden-style apartment complexes ( Cheverly Terrace and Hanson Arms ) were constructed in the early 1960s along Landover Road near the US Route 50 interchange.
Two additions were constructed on the 1852 site.
Two toll gates at the village limits of Sand Bank were constructed.
Two giant bucket monuments have since been constructed and erected in town to commemorate the event.
Two structures in the community, a courthouse ( 1938 ) and school building ( 1942 ), were constructed Works Projects Administration ( WPA ) labor.
Two frame buildings were constructed, which still serve as the cafeteria and a dormitory, and a full-time staff was in residence.
Two separate large canteens were constructed.
Two years later the college ’ s first major campus building, Kemp Hall, was constructed in the heart of Centralia.
Two redoubts had been constructed to protect Kourgane Hill from infantry assault ; the Lesser Redoubt on the eastern slope and the Greater Redoubt on the west.
Two understrength ordnance companies arrived 3 December and constructed their own camp a mile away, but the remainder of their personnel and all the materiel required, particularly aviation gas, were not scheduled to leave Luzon until 10 December.
Two other fields were constructed at the end of January 1942 to provide dispersal for aircraft from the often-bombed Bataan Field.
Two major forts had been constructed just outside the town, one, called the Queen's Sconce, to the south-west and another, the King's Sconce to the north-east, both close to the river, together with defensive walls and a water filled ditch 2¼ miles in length, around the town.
Two major areas of the zoo, Big Cat Country and Jungle of the Apes, were constructed in 1976 and 1986, respectively.
Two prototypes was constructed.
Two years later a team led by the famous heavy tank designer Ż. J. Kotin constructed two prototypes of the Ob ' yekt 278 tank.
Two new platforms would be constructed at Piccadilly and the station linked to Manchester Victoria via the Ordsall Chord cutting journey times on Trans-Pennine routes.

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