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Rainbow. A colorful rainbow and ring-billed gull. A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light appearing in the sky. [1] The rainbow takes the form of a multicoloured circular arc. [2]
The Sagnac effect, also called Sagnac interference, named after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called a ring interferometer or Sagnac interferometer. A beam of light is split and the two beams are made to follow the same ...
A gyrocompass makes use of one of the seven fundamental ways to determine the heading of a vehicle. [1] A gyroscope is an essential component of a gyrocompass, but they are different devices; a gyrocompass is built to use the effect of gyroscopic precession, which is a distinctive aspect of the general gyroscopic effect.
This is a huge advantage of large rings over small ones. As an example, small navigational gyros have lock-in frequencies on the order of 1 kHz. The first large ring had a lock-in frequency of about 2 kHz, and the first ring that could measure the Earth's rotation rate had a lock-in frequency of about 20 Hz. The cavity
Sights. Iron sights. The Gyrojet is a family of unique firearms developed in the 1960s named for the method of gyroscopically stabilizing its projectiles. Rather than inert bullets, Gyrojets fire small rockets called Microjets which have little recoil and do not require a heavy barrel or chamber to resist the pressure of the combustion gases.
A vibrating structure gyroscope (VSG), defined by the IEEE as a Coriolis vibratory gyroscope ( CVG ), [1] is a gyroscope that uses a vibrating structure to determine the rate of rotation. A vibrating structure gyroscope functions much like the halteres of flies ( insects in the order Diptera ). The underlying physical principle is that a ...
Fool's Gold Loaf. Fool's Gold Loaf is a sandwich made by the Colorado Mine Company, a restaurant in Denver, Colorado. It consists of a single warmed, hollowed-out loaf of bread filled with the contents of one jar of creamy peanut butter, one jar of grape jelly, and one pound (454 g) of bacon . The sandwich's connection to the singer Elvis ...
Nutation. in obliquity of a planet. Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle, whereas the third Euler angle defines the rotation itself.