Contributors in Science
Science > General science 
preamplifier
Science; General science
A voltage amplifier intended for amplifying a low-level input signal. The output is the input to another amplifier with a higher input level. For example, if the second amplifier ...
operational amplifier
Science; General science
A voltage amplifier that amplifies the differential voltage between a pair of input nodes. For an ideal operational amplifier (also called an op amp), the amplification or gain ...
cucumber
Science; General science
A warm-season annual cucurbit ( Cucumis sativus ) native to India and belonging to the plant order Campanulales.
bering sea
Science; General science
A water body north of the Pacific Ocean, 875,900 mi 2 (2,268,000 km 2 ) in area, bounded by the Siberian and Alaskan landmasses to the west and east respectively, and the ...
sine wave
Science; General science
A wave having a form which, if plotted, would be the same as that of a trigonometric sine or cosine function. It generally results from the solution of a problem having a ...
gravitational radiation
Science; General science
A wave that is generated by the acceleration of mass and travels at the speed of light. Gravitational waves are an implicit outcome of the special theory of relativity, and were ...
waveform determination
Science; General science
A waveform describes the variation of a quantity with respect to time. The necessary measurements to determine a waveform are normally carried out and presented in one of two ...
Sub-categories
- Acoustics (1199)
- Basic science (4082)
- General science (120567)