" At other exhibits, he remembered how a flashlight that shined on a photoelectric cell created a cracking sound, and how the sound from a tuning fork became a wave on an oscilloscope.

Hubble Sequence | Hubble tuning fork diagram of galaxy morphology

* A piezoelectric " tuning fork " has been constructed, which can be placed into a superposition of vibrating and non vibrating states.

Substitution as makeshift is when human ingenuity comes into play and a tool is used for its unintended purpose such as a mechanic using a long screw driver to separate a cars control arm from a ball joint instead of using a tuning fork.

A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs ( tines ) formed from a U-shaped bar of elastic metal ( usually steel ).

The pitch that a particular tuning fork generates depends on the length of the two prongs.

A needle on a tuning fork carves figures on carbon black.

Currently, the most common tuning fork sounds the note of A = 440 Hz, because this is the standard concert pitch, which is used as tuning note by some orchestras, it being the pitch of the violin's second string, the first string of the viola, and an octave above the first string of the cello, all played open.

The pitch of a tuning fork can vary slightly with weathering and temperature.

A decrease in frequency of one vibration in 21, 000 for each ° F change is typical for a steel tuning fork.

The frequency of a tuning fork depends on its dimensions and the material from which it is made:

Quartz crystal resonator from a quartz watch, formed in the shape of a tuning fork.

The Accutron, an electromechanical watch developed by Max Hetzel and manufactured by Bulova beginning in 1960, used a 360 hertz steel tuning fork powered by a battery as its timekeeping element.

The humming sound of the tuning fork could be heard when the watch was held to the ear.

The tuning fork that John Shore gave to Handel gives a pitch of C512.

* Onlinetuningfork. com, an online tuning fork using Macromedia Flash Player.

* John Shore invents the tuning fork.

** Piano tuning, adjusting the pitch of pianos using a tuning fork or a frequency counter

Low-frequency crystals, such as those used in digital watches, are typically cut in the shape of a tuning fork.

A tuning fork crystal is usually cut such that its frequency over temperature is a parabolic curve centered around 25 ° C.

This means that a tuning fork crystal oscillator will resonate close to its target frequency at room temperature, but will slow down when the temperature either increases or decreases from room temperature.

The opening theme, played pianissimo over string tremolos, so much resembles the sound of an orchestra tuning, many commentators have suggested that was Beethoven's inspiration.

The folk ( pre-Andreev ) tuning D-F #- A was very popular, as this makes it easier to play certain riffs.

When the infant BBC Television service was started in 1936, Rediffusion, which had supplied cable radio services since 1928, started providing " Pipe TV " to its customers who had difficulties tuning into the weak TV broadcast signal.

This tuning was used by the jazz player Red Mitchell and is increasingly used by classical players, notably the Canadian bassist Joel Quarrington.

The " Viennese tuning " ( A < sup > 1 </ sup >- D-F-A ) was popular, and in some cases a fifth string or even sixth string was added ( F < sup > 1 </ sup >- A < sup > 1 </ sup >- D-F-A ).

Richter tuning, invented by Joseph Richter ( who also is credited with inventing the blow and draw mechanism ), was created in 1826 and was adopted nearly universally in the subsequent years.

Yatsuhashi changed the Tsukushi goto tunings, which were based on gagaku ways of tuning ; and with this change, a new style of koto was born.

Twenty years after his first CD, Kaira ( Hannibal, 1988 )-that was also the first CD ever recorded with solo kora pieces without any song -, Toumani Diabate alternates traditional pieces on a kora with leather rings and his own creations with a special tuning on a kora with wooden pegs.

Braun's British patent on tuning was used by Marconi in many of his tuning patents.

The tall, vertically strung upright grand was arranged like a grand set on end, with the soundboard and bridges above the keys, and tuning pins below them.

This is called Pythagorean tuning because it was first discovered by Pythagoras.

The compass of keyboard instruments was widened and new tuning systems were developed.

Before cable-ready TV sets became common in the late 1980s, an electronic tuning device called a cable converter box was needed to receive the additional analog cable TV channels and transpose or convert the selected channel to analog radio frequency ( RF ) for viewing on a regular TV set on a single channel, usually VHF channel 3 or 4.

One of the earliest explicit descriptions of the instrument, including its tuning, was in the Epitome musical by Jambe de Fer, published in Lyon in 1556.

The last play-only cassette Walkman to be introduced ( in North America, at least ) was the WM-FX290, first sold in 2002, which also featured digital tuning, AM, FM, TV and weather band radio, operating on a single AA battery.

The cantankerous Moog, like many other early synthesizers, was so sensitive to changes in temperature that its oscillators would drift badly in tuning as the equipment warmed up, and this drift can easily be heard on the final recording.

In musical tuning, Jing Fang ( 78 – 37 BCE ) realized that 53 perfect fifths was approximate to 31 octaves while creating a musical scale of 60 tones, calculating the difference at < sup > 177147 </ sup >⁄< sub > 176776 </ sub > ( the same value of 53 equal temperament discovered by the German mathematician Nicholas Mercator, i. e. 3 < sup > 53 </ sup >/ 2 < sup > 84 </ sup >).

So, by tuning their technique further, they found that there was an admixture of s symmetry in YBCO within about 3 %.

This consisted of struck tuning forks instead of metal plates, but the sound produced was considered too small to be of use in an orchestral situation.

Featuring a 1071 cc engine with a 70. 61 mm bore and nitrided steel crankshaft and strengthened bottom end to allow further tuning ; and larger servo-assisted disc brakes, 4, 030 Cooper S cars were produced and sold until the model was updated in August 1964. Cooper also produced two S models specifically for circuit racing in the under 1, 000 cc and under 1, 300 cc classes respectively, rated at and a, both had a bore and both of which were also offered to the public.