Why art existed in some caves but not others…
For those who have ever been in a grotto or cave, on occasion, if you are very lucky, you may see paintings on the walls, or “rock art” made up of arranged stones; a miniature Stonehenge! This is a very rare event and the reasons for seeing art (or not) may be related to simple…
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Noise Cancellation Earphones and a Neat AuD Capstone Project
I recall sitting in my very first audiology class in 1979 (when tuning forks had just been invented and all hard of hearing people were using wither body worn hearing aids or large tin horns in their ears) and the instructor was trying to explain the difference in calibration between using earphones (minimal audible pressure)…
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