is a signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden that creates new frequencies by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are the mathematical dual of the phenomenon of "beats" in acoustics.
A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
by yyuryyubicuryy4me April 01, 2018
A Walking Dead Zone is an area for people with mobile phones who are currently experiencing the inconvenience of not being able to transmit to a nearby mobile site, base station, or any other similar Wi-Fi points of access. In these areas, the mobile phone is said to be in a state of outage. Walking Dead Zones is usually where Wi-Fi service is not available because the signal between the handset and mobile site antennas is blocked or severely reduced, usually by hilly terrain, spooky graveyards, dense foliage, physical distance, or interference from the Talking Dead. This will cause most mobile phone users who have no means of transportation to keep “walking “ until they are finally within range of a verifiable signal. Some of these Talking Dead who are traversing the Walking Dead Zones, have been known to utter out incoherent ramblings, such as, “Out of range!” “Out of range!”
Kelly: “Where’d Derek go, Brandon?”
Brandon: “Him and a few of his friends are in a Walking Dead Zone, somewhere between here and the abandoned church.
Kelly: “Well, he better hurry up and get back here in time for The Walking Dead ‘else I’m gonna start watching The Jerry Springer Show, I’m a telling you what!”
Brandon: “Him and a few of his friends are in a Walking Dead Zone, somewhere between here and the abandoned church.
Kelly: “Well, he better hurry up and get back here in time for The Walking Dead ‘else I’m gonna start watching The Jerry Springer Show, I’m a telling you what!”
by yyuryyubicuryy4me July 29, 2018
A drip rifle is a self-firing rifle which worked simply by having water from one soup can, drip into a lower soup can. When the water in the lower soup can, which was attached to the trigger of the rifle, reached a certain weight, the rifle was fired. This ruse could lead a battle front of defenders, into believing that there could still be troops opposing them, while the soldiers were being evacuated. Lots of drip rifles can be set to go off at different times, to give the impression that the enemy forces, were still in a defensive position.
“The Anzac soldiers in the Australian and New Zealand Army Corps of 1914 - 1918, would sometimes employ the specialized use of a drip rifle, in order to confuse or manipulate the opposing offense into believing that they were at a tactical disadvantage, when in fact, they were not.”
by yyuryyubicuryy4me July 16, 2018
A knight's tour is a sequence of moves of a knight on a chessboard such that the knight visits every square only once. If the knight ends on a square that is one knight's move from the beginning square (so that it could tour the board again immediately, following the same path), the tour is closed, otherwise it is open. A knight's tour problem is the mathematical problem of finding a knight's tour. Creating a program to find a knight's tour is a common problem given to computer science students. Variations of the knight's tour problem involve chessboards of different sizes than the usual 8 × 8, as well as irregular (non-rectangular) board.
While Brandon was on vacation, he steadily began to master the game theory involving chess. But when he was introduced to the knights tour, he realized this new level of expertise had more involvement than anything he encountered before.
by yyuryyubicuryy4me June 27, 2018
A sabrage is a technique for opening a champagne bottle with a saber, used for ceremonial occasions. The wielder slides the saber along the body of the bottle to break the top of the neck away, leaving the neck of the bottle open and ready to pour. The force of the blunt side of the blade hitting the lip breaks the glass to separate the collar from the neck of the bottle. One does not use the sharp side of the blade. The cork and collar remain together after separating from the neck.
When it comes to using the sabrage technique, it’s not sharpness or size of the blade that matters, but more importantly, it is the strength of the impact.
by yyuryyubicuryy4me July 06, 2018
When a law enforcement officer is transporting a total A-hole prisoner in the back of his/her patrol car and they hit the brakes suddenly, causing the prisoner to smack his face on the cage/screen.
by yyuryyubicuryy4me December 03, 2018
A strange loop is a cyclic structure that goes through several levels in a hierarchical system. It arises when, by moving only upwards or downwards through the system, one finds oneself back where one started. A strange loop is a hierarchy of levels, each of which is linked to at least one other by some type of relationship. A strange loop hierarchy is "tangled" in that there is no well defined highest or lowest level; moving through the levels, one eventually returns to the starting point, i.e., the original level. Strange loops may involve self reference or paradox.
“An example of a strange loop would be the Canon 5. a 2 from Bach's Musical Offering, which is a musical piece that continues to rise in key, modulating through the entire chromatic scale until it ends in the same key in which it began.“
by yyuryyubicuryy4me July 17, 2018