The Top Rated Wireless Portable Headphones For 2012

LG-Tone-HBS-700

LG Tone HBS-700 Wireless Earbud Headphone ($45) Despite selling for under $50, the LG Tone HBS-700 is one of the top rated bluetooth headphones. It received an 8 out of 10 rating from CNET, which makes it their Editor's Choice for a bluetooth headphone. CNET says it was one of the most comfortable headphones they've tried, and that the audio reproduction was impressive. Amazon buyers also liked this headphone -- it received an average of 4.5 of out 5 stars, from a total of 264 reviewers. PC … [Read more...]

Below 20 Hertz: The Rumbling Realm Of Infrasound

Artwork by Andy Gilmore

Infrasound is the realm of sounds in the frequency range of 20 Hz down to 0.001 Hz. According to Harry F. Olson in his book Maths, Physics and Engineering: 20 Hz is considered the normal low frequency limit of human hearing. The lower the frequency of sound, the more difficult it us for human to hear it. So, in order for us to hear a sound under 20 Hz, it must be powerful. We mostly hear infrasound through our ears, but at higher levels it is possible to feel infrasound vibrations in … [Read more...]