Besides wanting to get rid of the hum, [Andres] had also been reading up on the effect of light temperature at night — bluish light is typically bad for your eyes when you’re trying to go to ...

The thing about LRAD devices is they are not small or light ... microwave auditory effect. This is a phenomenon where RF energy directed at a human head is converted to sound perceivable by ...

Various items in the home can cause electrical interference; you may hear buzzing, clicking and pops ... However, if the original light used a transformer rather than directly running off the ...