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A noisemaker is something intended to make a loud noise, usually for fun. Instruments or devices commonly considered "noisemakers" include: pea whistles; air horns, composed of a pressurized air source coupled to a horn, designed to create an extremely loud noise; fireworks, such as firecrackers, bottle rockets, bang snaps and others
Before the experiment, Albert was given a battery of baseline emotional tests: the infant was exposed, briefly and for the first time, to a white rat, a rabbit, a dog, a monkey, masks (with and without hair), cotton, wool, burning newspapers, and other stimuli. Albert showed no fear of any of these items during the baseline tests.
Zener diode based noise source. A noise generator is a circuit that produces electrical noise (i.e., a random signal). Noise generators are used to test signals for measuring noise figure, frequency response, and other parameters. Noise generators are also used for generating random numbers. [1]
In fall 1999, [6] THX released the trailer Broadway 2000 for use of the Dolby Digital Surround EX sound system. As a result, an entirely new Deep Note was made from scratch. In this version of the Deep Note, new voices were made using a similar process while voices from the previous version can be briefly hea
The single noise-maker however would work effectively only if the torpedo was equally sensitive to sounds from both the front and rear. If a torpedo passed directly over the noise-maker from the rear the ship itself would be directly ahead, if the torpedo had a reduced sensitivity to noise from behind, it might ignore the greater output from ...
This is due to a noise maker in the tube that vibrates in the air as it falls, making the noise. [1] The groan tube was invented in the early 1960s by Japanese toy manufacturer Kureo. [2] [unreliable source?] The toy was first sold as 'Magic Noise Tube" (魔法音管). Mattel was the first company to sell the product in the United States in 1973.
The sufferer becomes anxious to get away from the source of the loud sound and may get headaches. [1] It may also be related to, caused by, or confused with hyperacusis, extreme sensitivity to loud sounds. [5] Phonophobia also has been proposed to refer to an extreme form of misophonia. [6]
Video of a bullroarer being swung to make a noise. A bullroarer consists of a weighted airfoil (a rectangular thin slat of wood about 15 to 60 centimetres (6 to 20 in) long and about 1.2 to 5 centimetres (0.5 to 2 in) wide) attached to a long cord. Typically, the wood slat is trimmed down to a sharp edge and serrations along the length of the ...