less-than-or-equal-to sign
51Differential calculus — The graph of a function, drawn in black, and a tangent line to that function, drawn in red. The slope of the tangent line equals the derivative of the function at the marked point. Topics in Calculus …
52Mesoscale convective complex — MCC moving through New England: August 2, 2006 0600 UTC A mesoscale convective complex (MCC) is a unique kind of mesoscale convective system which is defined by characteristics observed in infrared satellite imagery. They are long lived,… …
53Secure Digital card — Infobox media name = Secure Digital logo = caption = Pair of SD cards type = Memory card encoding = capacity = Standard SD: 8 MB to 4 GB SDHC: 1 GB to 32 GB [pricerunner.com 2008 08 27] (theoretical max for SDHC is 2 TB.) read = write = standard …
54Tipping by region — Tipping customs vary from country to country. Below is a summary of tipping guidelines, sorted by continent.Middle EastIsraelTipping in Israel is uncommon in hotels because a service charge, typically 10 percent of the bill, is often added to the …
55Critical area — can refer to one of the following: Aviation In aviation, a critical area refers to a designated area of an airport that all aircraft must remain clear of when another aircraft is inbound on an ILS approach. The critical area should be avoided… …
56Emmy Noether — Amalie Emmy Noether Born 23 March 1882(1882 03 23) …
57Pseudoscalar — In physics, a pseudoscalar is a quantity that behaves like a scalar, except that it changes sign under a parity inversion such as improper rotations while true scalar does not.The prototypical example of a pseudoscalar is the scalar triple… …
58Winter solstice — This article is about the astronomical and cultural event of winter solstice, also known as midwinter. For other uses, see Winter solstice (disambiguation), Midwinter (disambiguation) or also see Solstice. UTC Date and Time of Solstice[1] year… …
59Light brown apple moth controversy — The Light brown apple moth ( Epiphyas postvittana , often abbreviated to LBAM) is a leafroller moth belonging to the lepidopteran family Tortricidae. The insect is regarded as an herbivorous generalist, and the larvae consume numerous… …
60Sleep-deprived driving — is the operation of a motor vehicle while being cognitively impaired by a lack of sleep. Sleep deprivation is a major cause of motor vehicle accidents, and it can impair the human brain as much as alcohol can. According to a 1998 survey, 23% of… …
