Hi Tech & Innovation

Talking gloves, tactile windows: New tech helps the disabled

Hadeel Ayoub slips a black glove onto her hand before beginning the swish of sign language that is meaningless to the untrained observer. Then she pushes a button on her wrist, and a small speaker relays the message drawn ...

Internet

Facebook, Twitter CEOs back before Congress Tuesday

The top executives of Facebook and Twitter were set to appear before US lawmakers for the second time in less than month for a fresh hearing on the hotly disputed role of social networks in US political debate.

Engineering

Keeping up with the conversation

Most people find it difficult to concentrate on a specific voice in a busy environment, but for those who are hard of hearing it's especially challenging. Now, however, a new type of hearing aid, developed with the assistance ...

Internet

MIT to caption online videos after discrimination lawsuit

The Massachusetts Institute of Technology has agreed to provide captions for more of its publicly available online videos as part of a settlement announced Tuesday in a case that accused the school of discriminating against ...

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Hearing impairment

A hearing impairment or deafness is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors, loss of hearing can happen to any organism that perceives sound. "Hearing impaired" is often used to refer to those who are deaf, although the term is viewed negatively by members of Deaf culture, who prefer the terms "Deaf" and "Hard of Hearing".

Sound waves vary in amplitude and in frequency. Amplitude is the sound wave's peak pressure variation. Frequency is the number of cycles per second of a sinusoidal component of a sound wave. Loss of the ability to detect some frequencies, or to detect low-amplitude sounds that an organism naturally detects, is a hearing impairment.

This text uses material from Wikipedia, licensed under CC BY-SA