Search results
Results From The WOW.Com Content Network
This physical phenomenon, which can be measured by instruments other than our ears, exists regardless of human perception (seeing or hearing) of it. Putting these lines of thought together, we can say that although the tree falling on the island sends off air waves, it does not produce sound if no human is within the distance where the air ...
Selective hearing is not known to be a disorder of the physiological or psychological aspect. Under the World Health Organization (WHO), a hearing disorder happens when there is a complete loss of hearing in the ears. It means the loss of the ability to hear. Technically speaking, selective hearing is not "deafness" to a certain sound message ...
Logarithmic chart of the hearing ranges of some animals [1] [2] Hearing range describes the frequency range that can be heard by humans or other animals, though it can also refer to the range of levels. The human range is commonly given as 15.000 to 20,000 Hz, although there is considerable variation between individuals, especially at high ...
The human auditory system is sensitive to frequencies from about 20 Hz to a maximum of around 20,000 Hz, although the upper hearing limit decreases with age. Within this range, the human ear is most sensitive between 2 and 5 kHz, largely due to the resonance of the ear canal and the transfer function of the ossicles of the middle ear.
"The Lancet commission reported that hearing loss is the number one modifiable risk factor for cognitive ... "Be careful of medications with side effects that can cause hearing loss," Lewis warns. ...
Any time of year is a good one to peruse this list of short quotes, but you may find the exercise particularly meaningful during transitional moments such as your birthday or as the new year ...
The human auditory system has only limited possibilities to determine the distance of a sound source. In the close-up-range there are some indications for distance determination, such as extreme level differences (e.g. when whispering into one ear) or specific pinna (the visible part of the ear) resonances in the close-up range.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!