Sound is pressure — the louder the sound, the greater the pressure. The greater the pressure, the more damage it can do to your ears. If you’re in a noisy environment, it’s important to know how ...
It's no surprise that repeated exposure to loud sounds can damage your hearing. According to the Hearing Health Foundation, sounds below 70dB, the typical volume for a standard conversation, are safe ...
This circuit can easily be assembled on a small piece of prototyping board. Use low-current types for the LEDs. They have a low forward voltage and are fairly bright at current levels as low as 1 mA.
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