feedback circuit
51Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …
52Armstrong, Edwin H. — ▪ American inventor Introduction in full Edwin Howard Armstrong born Dec. 18, 1890, New York, N.Y., U.S. died Jan. 31/, Feb. 1, 1954, New York City American inventor who laid the foundation for much of modern radio and electronic… …
53Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor …
54Isothermal titration calorimetry — (ITC) is a biophysical technique used to determine the thermodynamic parameters of (biochemical) interactions. It is most often used to study the binding of small molecules (such as medicinal compounds) to larger macromolecules (proteins, DNA etc …
55Ibanez Tube Screamer — The Ibanez Tube Screamer is an overdrive effect pedal produced by Ibanez which is named for the fact that its light distortion is similar to the sound given by overdriven tube amps. The pedal s sound is different from most distortion pedals as… …
56Seismometer — Seismometers (from Greek Seism the shakes and Metro I measure ) are instruments that measure and record motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of… …
57let-7 microRNA precursor — Predicted secondary structure and sequence conservation of let 7 Identifiers Symbol let 7 Rfam …
58Primate basal ganglia system — The primate basal ganglia system is a symmetrical major cerebral system that has only recently been recognized. In the past, part of it was presented as motor or extrapyramidal , complementary to the corticospinal (pyramidal) system. Contrary to… …
59Vibration isolation — is the process of isolating an object, such as a piece of equipment, from the source of vibrations. Passive isolationPassive vibration isolation systems consist essentially of a mass, spring and damper (dash pot).Active isolationActive vibration… …
60Marshall JTM 45 — The Marshall JTM 45 is the first guitar amplifier made by Marshall. First produced in 1962, it has been called a seminal amplifier,[1] and is praised as the most desirable of all the company s amplifiers.[2] Contents 1 History 2 Na …
