Since these brainwave frequencies are outside the spectrum of sounds which can be heard in pure form by the human ear, A Hemi-Sync must produce them based on another phenomenon known as the brain’s capacity for deducing “beat” frequencies.
Messier 14 (Wikipedia) Messier 14 (also known as M14 or NGC 6402) is a globular cluster of stars in the constellation Ophiuchus. It was discovered by Charles Messier in 1764.
