Contributors in Science
Science > General science 
parasympathetic nervous system
Science; General science
A portion of the autonomic system. It consists of two neuron chains, but differs from the sympathetic nervous system in that the first neuron has a long axon and synapses with the ...
proton
Science; General science
A positively charged particle that is the nucleus of the lightest chemical element, hydrogen. The hydrogen atom consists of a proton as the nucleus, to which a single negatively ...
charge-density wave
Science; General science
A possible ground state of a metal in which the conduction-electron charge density is sinusoidally modulated in space. The periodicity of this extra modulation is unrelated to ...
niter
Science; General science
A potassium nitrate mineral with chemical composition KNO 3 . Niter crystallizes in the orthorhombic system, generally in thin crusts and delicate acicular crystals; it also ...
trypanosomiasis
Science; General science
A potentially fatal infection caused by parasites of the genus Trypanosoma .
activated carbon
Science; General science
A powdered, granular, or pelleted form of amorphous carbon characterized by very large surface area per unit volume because of an enormous number of fine pores. Activated carbon ...
unloader
Science; General science
A power device for removing bulk materials from railway freight cars or highway trucks. Especially in the case of railway cars, the car structure may aid the unloading, as in the ...
Sub-categories
- Acoustics (1199)
- Basic science (4082)
- General science (120567)