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no they have speical teachers help them look at ur school their is probly blind people
Echoes from the blind sector have a chance to be received by the antenna, the ones from the blind are completley blocked, blinded because of a larger obstruction
Braille
Sound echoes off of virtually everything, but the echoes are usually too scattered or diminished to be heard. The shape of deep valleys allows echoes to reflect off the valley walls and back to you without being diminished too much. (There are some blind people who have trained themselves to know the proximity of nearby objects through echo location, similar to the way bats do.)
Braille is created by punching dimples in special paper with a special machine. A blind person would have no reason to create Braille pages unless she was writing to another blind person. In such cases, there are text-to-voice programs that would serve much better, and most blind people can type.
Blind people have special devices attached to the keys of their cars in order to locate them. By pressing the big button on these devices, a loud alarm sounds from the car.
Braille.
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Most types of manufacturing industries, such as chemical and car manufacturers, use blind rivet equipment. Blind rivet equipment is used in industries that make items where rivet joints can only be accessed from one side, such as plastic piping and some aircraft parts.
yes, they most certainly can, there are special ballots with templates in braille made especially for vision impaired people.
Household help that is available to blind people living alone typically consists of home nurses or home aids. They also have canes and special things they can walk with to help them.
If your question was "Is a bat a totally blind animal?"- then No. Bats actually have pretty good eyesight. But they also have the ability to hear echoes from high pitched squeaks- and this allows them to locate insects in flight.