pulse delay interval
61Satellite navigation — Geodesy Fundamentals Geodesy · …
62Neural oscillation — is rhythmic or repetitive neural activity in the central nervous system. Neural tissue can generate oscillatory activity in many ways, driven either by mechanisms localized within individual neurons or by interactions between neurons. In… …
63Pulsar — Pulsars are highly magnetized rotating neutron stars that emit a beam of electromagnetic radiation in the form of radio waves. Their observed periods range from 1.4 ms to 8.5 s. [ M.D. Young, R.N. Manchester and S. Johnston. A radio pulsar with… …
64cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
65Epidemiology — For the Community episode, see Epidemiology (Community). Epidemiology is the study of health event, health characteristic, or health determinant patterns in a population. It is the cornerstone method of public health research, and helps inform… …
66Antenna (radio) — Whip antenna on car …
67Token (railway signalling) — A token being offered by a signalman on the Keighley and Worth Valley Railway …
68Q-Zar — (called Quasar in the UK and Republic of Ireland) is a type of laser tag that was developed by Geoff Haselhurst and Omnitronics in Perth, Western Australia. The rights were later sold to a company based in Ireland which in turn sold them to Q Zar …
69PAL-S — is the system of television receiver sets in the early days of PAL system. Here PAL stands for Phase alternating at line rate and S stands for simple. Contents 1 PAL system 2 The PAL S receiver 3 The problems in PAL S …
70Menstrual cycle — See also: Menstruation and Menstruation (mammal) The menstrual cycle is the scientific term for the physiological changes that can occur in fertile women. This article focuses on the human menstrual cycle. The menstrual cycle, under the… …
