" Enharmonic equivalents are tones that have the same pitch but different letter names .... Two tones having the same pitch but different spelling ".

Two of the pieces in each concert had 17 Hz tones played underneath.

The phenomenon of rubbing a wet finger around the rim of a wine goblet to produce tones is documented back to Renaissance times ; Galileo considered the phenomenon ( in his Two New Sciences ), as did Athanasius Kircher.

Two tones of the same pitch will give maximum sympathetic resonance as all harmonics of both strings will overlap.

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 tones of 25 Hz and 35 Hz were used: these two tones allowed different effects to be activated when desired: the rumble could be turned on or off in the Sensurround horns, the main soundtrack could be sent to the Sensurround horns, the level of both the rumble and the soundtrack coming from the horns could be varied by varying the level of the control tones and the theater's main audio system could be increased in level by up to 8 dB at select points to create a greater dynamic range ( MCA called this the " Step-Gain " function.

Two sets of tones are used for the Magnificat, the canticle of Vespers, and the Benedictus, the canticle of Lauds: simple tones, which are very close to the standard psalm tones, and solemn tones, which are more ornate and used on the more important feasts.

Two simultaneous RF tones is in fact the classic " stress test " of an RF power amplifier for measuring linearity and intermodulation distortion.

Two individuals gave eulogies at his funeral: Gauss's son-in-law Heinrich Ewald and Wolfgang Sartorius von Waltershausen, who was Gauss's close friend and biographer.

Two smaller phyla, the Onychophora and Tardigrada, are close relatives of the arthropods and share these traits.

Two of John ’ s close allies, Emperor Otto and Count Raymond VI of Toulouse, had already suffered the same punishment themselves, and the significance of excommunication had been somewhat devalued.

Two days after the Sbarro restaurant suicide bombing, the Israeli cabinet voted to close the Orient House, and the building was raided by Israeli security forces.

Two types of diffraction are distinguished, depending upon the separation between the source and the screen: Fraunhofer diffraction or far-field diffraction at large separations and Fresnel diffraction or near-field diffraction at close separations.

In Egyptian accounts, however, the penis of Osiris is found intact, and the only close parallel with this part of Plutarch's story is in " The Tale of Two Brothers ", a folk tale from the New Kingdom with similarities to the Osiris myth.

Two young girls sitting in a car close to the scene of the shooting also tried to help the prime minister.

Two years pass and Catherine has become close friends with Edgar, growing more distant from Heathcliff.

Two factors are considered here: How close the predator and prey are physically ( in the latter two cases the term prey may be replaced with host ).

Two weekends a year, NASCAR races are held at Dover International Speedway, attracting close to 100, 000 spectators and visitors and temporarily making Dover the state's largest city.

Two of the three planets ( Cottman II and Cottman III ) which are closer to the system's star are gas giants, the third ( Cottman I ) is a barren, scorched rock too close to its star to sustain life.

Two annual agricultural shows are held close to the town: the four-day Royal Bath and West Show, which is held at the showground of the Royal Bath and West of England Society near Evercreech, south-east of the town, while the one-day Mid-Somerset Show is held on fields on Shepton Mallet's southern edge.

Two mini buses on ABC Highway close to the Sir Garfield Sobers roundabout.

Two UVF units from the Belfast and the Mid-Ulster brigades were responsible, allegedly with help from former and serving members of the Ulster Defence Regiment ( UDR ) and British Intelligence, for the bombs in Dublin and Monaghan of 17 May 1974 when thirty-three people were killed and close to 300 injured.

The Devonport Leat begins a short distance to the north of Wistman's Wood and passes close to Two Bridges before heading towards Princetown.

Two stations were built to serve the centre close to the sites of closed former London Underground stations:

Two large bodies of magma rose close to the surface where Mount Malarga and Mount Walsh are presently situated.

Two close friends of Charles Whitman named John and Fran Morgan later told the Texas Department of Public Safety that Whitman had confided in them that he had struck Kathy on a total of three occasions, adding that Whitman had abhorred himself for having done so and had confessed to having been " mortally afraid of being like his father.

Two roads cross the township of Livermore, although neither one is close to the site of Livermore village.

Two highway tunnels that connect New Jersey to New York are located close to Hoboken.

Two other men on horseback follow close behind.

Two years later, the Army Bomb Disposal School would close, making Indian Head the sole Joint Service EOD School in the U. S. at the time, though currently NAVSCOLEOD has relocated to Eglin AFB FL.

Two months later, in January 1595, Barnfield published his second volume, Cynthia, with certain Sonnets, and the legend of Cassandra, and this time signed the preface, which was dedicated, in terms which imply close personal relations, to William Stanley, 6th Earl of Derby.

Two years later, the presence of an excess infrared emission close to Epsilon Eridani was announced, which indicated a disk of fine-grained cosmic dust was orbiting the star.

Two red telephone boxes are on display at the World Showcase area of Disney's Epcot in Orlando, Florida, One is on display at English Gardens a Place for Weddings in Winter Park close to downtown Orlando, Florida.

Two of the major design goals of 3270's are related to this: minimizing the amount of data transmitted, and minimizing the frequency of interrupts to the mainframe.

Two oscillators that have the same frequency and different phases have a phase difference, and the oscillators are said to be out of phase with each other.

Two frequency converters would be used, and the radio would be a double conversion superheterodyne ; a common example is a television receiver where the audio information is obtained from a second stage of intermediate-frequency conversion.

Two curves are drawn ; one for the linearly amplified signal at an input tone frequency, one for a nonlinear product.

Two newer studies examined the frequency of collisions in two regional districts using the latest analytical tools.

Two additional amplifiers detected this low frequency and triggered the 4th tube ( a gas-filled thyratron ) to set off the detonator.

Two were used for all low-power stations and the large stations each got their own frequency.

Two separate frequency bands have been allocated by the FCC for air-ground telephone service.

Two signals are transmitted on one out of 40 ILS channels in the carrier frequency range between 108. 10 MHz and 111. 95 MHz ( with the 100 kHz first decimal digit always odd, so 108. 10, 108. 15, 108. 30, and so on are LOC frequencies but 108. 20, 108. 25, 108. 40, and so on are not ).

Two major kinds of test modes can be used to probe the viscoelastic properties of polymers: temperature sweep and frequency sweep tests.

Two applications of frequency response analysis are related but have different objectives.

Two months after completion of withdrawal patients suffering from medication overuse headache typically notice a marked reduction in migraine and other headache frequency and intensity.

Two examples of analytic interests are population frequency distributions and prediction.

Two measurements of the same physical quantity often exhibit different noise levels in different frequency ranges.

Two way voice radio communication and regular news broadcasts by voice using vacuum tube technology to provide high frequency amplitude modulated radio transmission became common by the mid-1920s.

Two incremental improvements over the exponential horn include slightly better support for low frequency extension and a somewhat broader high-frequency coverage pattern.

Two different intervals are perceived to be the same when the pairs of pitches involved share the same frequency ratio.

Two years later, on 2 August 1980, 2NM changed its frequency again from 1458 kHz to 981 kHz to improve reception in parts of the Upper Hunter.

Two useful introductions to the fundamental theory underlying the unit of selection issue and debate, which also present examples of multi-level selection from the entire range of the biological hierarchy ( typically with entities at level N-1 competing for increased representation, i. e., higher frequency, at the immediately higher level N, e. g., organisms in populations or cell lineages in organisms ), are Richard Lewontin's classic piece " The Units of Selection " and John Maynard-Smith and Eörs Szathmáry's co-authored book, The Major Transitions in Evolution.

Two different values for its frequency have been given: 1420. 356 MHz ( J. D. Kraus ) and 1420. 4556 MHz ( J. R. Ehman ).

Two common CTAF allocations are UNICOM, a licensed non-government base station that provides air-to-ground communications ( and vice versa ) and may also serve as a CTAF when in operation, and MULTICOM, a frequency allocation ( without a physical base station ) that is reserved as a CTAF for airports without other facilities.

Two years later, on August 21, 1959, the Catholic University of Chile made an experimental transmission between its main campus and the El Mercurio newspaper headquarters, both in Santiago's downtown, inaugurating the country's second channel, Canal 13, occupying frequency 2 for a few years ( now 13 ).

Two transmitters cannot broadcast on the same frequency in the same area as this would cause co-channel interference.