achievable
51Tupolev Tu-144 — Tu 144 Aeroflot Tu 144 at the Paris Air Show in 1975 …
52Universal Serial Bus — Infobox Computer Hardware Bus name = USB fullname = Universal Serial Bus caption = Original USB Logo invent date = January 1996 width = 1 numdev = 127 per host controller speed = 12 or 480 Mbit/s (1.5 to 60 MByte/s) style = s hotplug = Yes… …
53Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
54Dynamic range — For other uses, see Dynamic range (disambiguation). Dynamic range, abbreviated DR or DNR,[1] is the ratio between the largest and smallest possible values of a changeable quantity, such as in sound and light. It is measured as a ratio, or as a… …
55Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …
56Shannon–Hartley theorem — In information theory, the Shannon–Hartley theorem tells the maximum rate at which information can be transmitted over a communications channel of a specified bandwidth in the presence of noise. It is an application of the noisy channel coding… …
57Beats per minute — (BPM) is a unit typically used as either a measure of tempo in music, or a measure of one s heart rate. A rate of 60 bpm means that one beat will occur every second.The BPM tempo of a piece of music is conventionally shown in its score as a… …
58Best Available Control Technology — (BACT) is a pollution control standard mandated by the United States Clean Air Act. [Clean Air Act, section 169(3), uscsub|42|7479|3.] The U.S. Environmental Protection Agency (EPA) determines what air pollution control technology will be used to …
59Marketing plan — A marketing plan may be part of an overall business plan. Solid marketing strategy is the foundation of a well written marketing plan. While a marketing plan contains a list of actions, a marketing plan without a sound strategic foundation is of… …
60Digital Compact Cassette — For other uses, see DCC (disambiguation). Digital Compact Cassette Media type Magnetic tape Encoding Precision Adaptive Sub band Coding (MPEG 1 Audio Layer I) …
