Harmonic Resonance - Frequency Vibration RANT. Interval Training Music. The right kind of music can improve your performance in Interval Training. Check out my post on HIIT for different ways to do interval training. If you’re interested in learning about how to increase your performance through music, read the next part. Otherwise, you can skip to the end where I have included some of my favorite Interval Training Music. In a 2009 study, twelve (12) students were chosen for an experiment. They were put on an exercise bike and listen to six (6) songs. The study showed that when the tempo increased, so did the student’s output.
There were 3 trials in total: First Trial: The songs were at their normal speed Second Trial: The songs tempo was lowered by ten percent (-10%) during the second trial. When the tempo was decreased by 10%, performance decreased by 36% AND the students did not find the trial to be easier. The music played a significant role on the performance. To read the details of this study, go to: Pendulum. Quartz Crystals. The following comes from Electron Tubes by John Morecroft, 1933 starting page 334... Fixing Frequency by Piezo-electric Crystal There are certain crystals, notably quartz and Rochelle salts, which show the phenomenon of piezo-electricity, or development of electric charge as a result of pressure. A suitably crystallized piece of Rochelle salts will show a difference of potential on two of its faces as high as several hundred volts, when vigorously twisted. *1 A piece of quartz crystal, properly cut, will develop a few volts difference of potential between its opposite faces, when squeezed.
These crystals develop a charge when their shape is changed, and as the phenomenon is a reversible one, they change their shape when charged. This peculiar action makes it possible to control the frequency of oscillation of a triode by the mechanical vibration of a piece of quartz. Characteristics of Piezoelectric Quartz Mounting of Oscillating Plates Temperature Effects in Quartz *1 See Nicolson, Proc.
Universal property of music discovered. Researchers at the Institute for Logic, Language and Computation (ILLC) of the University of Amsterdam have discovered a universal property of musical scales. Until now it was assumed that the only thing scales throughout the world have in common is the octave. The many hundreds of scales, however, seem to possess a deeper commonality: if their tones are compared in a two- or three-dimensional way by means of a coordinate system, they form convex or star-convex structures.
Convex structures are patterns without indentations or holes, such as a circle, square or oval. Almost all music in the world is based on an underlying scale from which compositions are built. In Western music, the major scale (do-re-mi-fa-sol-la-ti-do) is the best known scale. However, there are many other scales in use, such as the minor and the chromatic scale. 1000 scales By placing scales in a coordinate system (an 'Euler lattice') they can be studied as multidimensional objects. Why Resonant Frequencies Matter to Your Audio Setup - CE Pro Magazine Article from CE Pro. You hear resonant frequencies every hour of every day of your life. You may not know it, but you hear them.
A resonant frequency is the tone given off when an object resonates -- simple enough. If you take a glass of water and tap on it, the mass of the water, in conjunction with the glass, reproduces a tone. Add more water, the tone gets lower. Drink some water, and the tone goes up. For integrators, understanding resonant frequencies can help clarify why one set of speakers sounds better than another. Every object in the world has a resonant frequency. A lightweight object will generally have a higher resonant frequency than a heavy object. The density of the object also enters into the equation. The answer, of course, is that they weigh the same. The density of the two materials, however, is substantially different. Speaker manufacturers care about resonant frequencies, as those frequencies can color the sound of the speaker they are trying to build.