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A vibrator is a mechanical device that is designed to generate Vibration s. The vibration is often generated by an Electric Motor with an Unbalanced Weight (mass) on its Driveshaft . If the motor is switched on, the Rotating weight will Resonate . There are many different types of vibrator, including those in Cellphone s and Pager s. There are also vibrating devices intended to Touch the body (including insertion in a body cavity), thereby stimulating the nerves and giving a pleasurable and possibly Erotic Feeling . NON-EROTIC VIBRATORS Industrial uses of vibrators include:
See also VIBRATORS FOR BODY STIMULATION The electrically-powered vibrator was invented in the 1880s by doctors, who had been ostensibly treating women for " Hysteria " for centuries by performing what we would now recognise as Masturbating those women to Orgasm .1 At the time, however, not only did doctors regard the "vulvular stimulation" required as having nothing to do with sex, they reportedly found it time-consuming and hard work. The vibrator got the job done more quickly and without such efforts, and as such was extremely popular with doctors. Home versions began to appear soon after and became equally popular, with adverts in places like Needlecraft, Woman's Home Companion, Modern Priscilla and the Sears, Roebuck catalog. These disappeared in the 1920s , apparently because their appearance in Pornography made it no longer tenable for polite society to avoid the sexual connotations of the devices. In their more common guise as "body massagers", millions of vibrators have been sold to both men and women. Some of the purchasers never use their purchases for anything other than relief from muscular tension or aches and pains. However, many people who purchase vibrators marketed as "body massagers" -- and, presumably, most people who purchase vibrators marketed as adult toys -- use them to attain sexual release, primarily in Masturbation , a form of Autoeroticism . Vibrators are also used by couples as an enhancement to the pleasure of one or both partners, and are often recommended by sex therapists to women who have difficulty reaching Orgasm by other means. Although many women who use a vibrator express concern over "vibrator addiction", the inability to achieve orgasm without the use of a vibrator, it must be stressed that this effect is entirely psychological; even long term vibrator use does not lead to any decrease in sensitivity of the sexual nervous system. The sale of vibrators and similar "novelty items" is forbidden in several states in the southern USA . In the state of Texas , the sale of devices for sexual stimulation such as vibrators and Dildo s is technically illegal, but many stores will sell such items provided that the customer sign a statement that the device will be used only for educational purposes. In the autumn of 2002, Cornell University began selling vibrators under the guise of "body massage therapy." Elliott Reed, an undergraduate student, wrote a column that exposed the coverup of the vibrators being sold at the campus health center. The controversy continues. TYPES OF EROTIC VIBRATORS An enormous range of vibrators exist, falling into several broad categories:
Most vibrators use internal batteries, but some of them have a power cord and must be plugged into a wall power socket to work. VIBRATORS IN SCIENTIFIC RESEARCH Vibration is often used by Neuroscientist s and Neurologist s in Motor Control research as means to activate somatosensory receptors, such as receptors of the skin and muscle spindles. For example, vibration applied to Achilles tendon causes the subject's body to sway backwards. Such reactions are often referred to as Tonic Vibration Reflex . REFERENCES
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