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It was invented in the 1500's.
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∙ 14y ago
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What has the author Kenneth Donnelly written?
Kenneth Donnelly has written: 'Interpreting hearing aid technology' -- subject(s): Hearing aids
Where was the hearing aid invented?
If you mean "ear trumpets," a non-electronic device to amplify sound, they were invented around London in the 1600's. The first electronic hearing aid was made in Alabama around 1898.
How do hearing aids work exactly?
The hearing receptors are also known as hair cells. These are auditory receptors that transform vibrations causes by sound waves into neural impulses that are then transmitted to the brain through the auditory nerve. The hair cells are not real hairs but are cells with 100 or so projections sticking out that bend in response to movements of the basilar membrane .
What made it possible to construct in the 1800s?
The latest invention of the 1800's STEEL! The latest invention of the 1800's STEEL!
What is a invention starting with s?
styrofoam
What is Plan aid organisation 's population?
Plan - aid organisation -'s population is 8,000.
What has the author Alton L Thygerson written?
Alton L. Thygerson has written: 'Study guide for first aid practices' 'First aid, CPR, and AED Standard' -- subject(s): First aid in illness and injury, First Aid, Cardiopulmonary Resuscitation, Automated external defibrillation, Electric Countershock, CPR (First aid) 'CPR' -- subject(s): Popular works, CPR (First aid), Methods, Cardiopulmonary Resuscitation, Handbooks, Standards, Airway Obstruction, Therapy, First Aid 'First aid and CPR' -- subject(s): Accessible book, First aid in illness and injury, CPR (First aid) 'Safety: principles, instruction, and readings' -- subject(s): Accidents, Safety education, Prevention 'First aid' -- subject(s): First aid in illness and injury, Medical emergencies 'First Aid & Emergency Care Workbook' -- subject(s): Emergencies, First aid in illness and injury, Medical emergencies, First Aid 'Fit to be well' -- subject(s): Health, Physical fitness 'Safety' -- subject(s): Accidents, Safety education, Prevention 'First aid handbook' -- subject(s): First aid in illness and injury, Handbooks, manuals 'Bu Fit To Be Well' 'Teaching first aid resource book' -- subject(s): Study and teaching, First aid in illness and injury 'First aid, CPR, and AED' -- subject(s): Accessible book, First aid in illness and injury, First Aid, Cardiopulmonary Resuscitation, Automated external defibrillation, Electric Countershock, CPR (First aid) 'First aid pocket guide' -- subject(s): First aid in illness and injury, Handbooks, manuals 'First aid and CPR' -- subject(s): First aid in illness and injury, CPR (First aid)
Robert Fulton ' s invention?
steamboat
What has the author Juliet England written?
Juliet England has written: 'Deafness and hearing loss' -- subject(s): Deafness, Popular works, Hearing impaired 'Deafness and hearing loss' -- subject(s): Deafness, Popular works, Hearing impaired
What has the author Michael S McPherson written?
Michael S. McPherson has written: 'How can we tell if federal student aid is working?' -- subject(s): Federal aid to higher education, Student aid 'Selective admission and the public interest' -- subject(s): Public interest, Admission, Educational equalization, Universities and colleges 'Federal student aid policy, can we learn from experience?' -- subject(s): Federal aid to higher education, Student aid, Government policy 'The student aid game' -- subject(s): College students, Education, Higher, Finance, Higher Education, Scholarships, fellowships, Student aid
What is the motto of S-Fone?
The motto of S-Fone is 'Hearing is Seeing'.
What invention starts with a s?
One example is a switch.
