Megaphones & Bullhorns Get Your Words Heard
What Are Megaphones?
Megaphones, also known as bullhorns, are instantly recognizable because of their distinctive conical or bell shape.
For thousands of years, the human voice has been projected by megaphones.
This is due to the natural acoustic properties of their parabaloid shape, which focuses sound waves to make them travel further, but in a narrow arc.
What is relatively… Read the rest
Preserve Your Hearing & Maintain Your Quality of Life
Hearing loss has reached epidemic proportions in modern life.
As many as 10 million Americans have already suffered irreversible hearing loss. And 30 million more Americans are exposed to dangerous noise levels each day.
In a previous post, I outlined 

