an audible tone
21Drum set tuning — Contents 1 Drum Set Tuning 1.1 Tom Toms 1.2 Snare drum and bass drum 1.3 The Process 1.4 Muffling …
22Telephone — The telephone (from the el. τῆλε, tēle , far and φωνή, phōnē , voice ) is a telecommunications device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more. It is one of… …
23Weather Star III — Infobox generic style0 = class= infobox bordered style= width:20em; color = red name = Weather Star 3000 lbl2 = Family: row2 = WeatherStar lbl6 = Release Date: row6 = January 1985 lbl7 = Status: row7 = Discontd.Weather Star III (usually dubbed… …
24Mixing console — In professional audio, a mixing console, or audio mixer, also called a sound board, mixing desk, or mixer is an electronic device for combining (also called mixing ), routing, and changing the level, timbre and/or dynamics of audio signals. A… …
25Thayer Valve — The Thayer Axial Flow Valve is a replacement for the traditional rotary valve found on trombones with F attachments. Invented by Orla Ed Thayer in 1976, it was the biggest advance in the design of the trombone since the rotary valve was added… …
26WeatherStar — refers to the technology used by The Weather Channel (TWC) to generate their Local Forecast segments (currently known as Local on the 8s ) on cable TV systems nationwide. The hardware takes the form of a computerized unit installed at the headend …
27Cardiopulmonary resuscitation — CPR redirects here. For other uses, see CPR (disambiguation). Cardiopulmonary resuscitation Intervention CPR being performed on a mannequin ICD 9 …
28Lane departure warning system — A lane departure warning system (LDW) is a mechanism designed to warn a driver when the vehicle begins to move out of its lane (unless a turn signal is on in that direction) on freeways and arterial roads.The first production LDW system in Europe …
29Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
30Marin Mersenne — For the primes named after Marin Mersenne, see Mersenne prime. Marin Mersenne Born 8 September 1588(1588 09 08) Oizé, Maine Died …
