scanning diaphragm
21Microscope — An optical instrument that augments the power of the eye to see small objects. The name microscope was coined by Johannes Faber (1574 1629) who in 1628 borrowed from the Greek to combined micro , small with skopein, to view. Although the first… …
22Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… …
23Pioneer 2 — Infobox Spacecraft Caption=NASA photo of the Pioneer 2 probe Name=Pioneer 2 Mission Type=Orbiter Satellite Of=MoonPioneer 2 was the last of the three project Able space probes designed to probe lunar and space. Shortly after launch at 07:30:00… …
24photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates …
25motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
26Spiral computed tomography — Diagnostics MeSH D036542 Spiral computed tomography is a computed tomography,[1] technology involving movement in a spiral …
27Convolution — For the usage in formal language theory, see Convolution (computer science). Convolution of two square pulses: the resulting waveform is a triangular pulse. One of the functions (in this case g) is first reflected about τ = 0 and then offset by t …
28Microelectromechanical systems — (MEMS) (also written as micro electro mechanical, MicroElectroMechanical or microelectronic and microelectromechanical systems) is the technology of very small mechanical devices driven by electricity; it merges at the nano scale into… …
29Pioneer 0 — The Pioneer 0 (also known as Thor Able 1 ) probe was designed to go into orbit around the Moon and carried a TV camera and other instruments as part of the first International Geophysical Year (IGY) science payload. It was the first attempt by… …
30Pioneer 1 — On 1958 10 11, Pioneer 1 became the first spacecraft launched by NASA, the newly formed space agency of the United States. The flight was the second and most successful of the three Able space probes. [cite web… …
