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Placard outside a shop in Bordeaux advertising subtraction of 20% from the price of the second perfume purchased.. Subtraction (which is signified by the minus sign −) is one of the four arithmetic operations along with addition, multiplication and division.
The "tritrix" eclipse cycle, [4] consisting of 1743 synodic months, 1891.496 draconic months, or 1867.9970 anomalistic months (140.925 years, equivalent to 3 inex plus 3 saros) is about as accurate as the interval of Hipparchus in terms of anomalistic months, but repeats many more times, around 20. An exceptionally accurate eclipse cycle from ...
These references represent a period of 1260 days (based on the 360 day Jewish year multiplied by 3.5). [4] Divide 1,260 days by 42 months and you will get a 30-day month, as 12 months of 30 days equals 360-days in a year These time periods occur ten times in scripture: Daniel 7:25, "time, times and a half". Daniel 9:27, "half one set of seven".
Let's hope they don't take it off all platforms after nine months for a second time! #13 TIL in Icelandic folklore there's a cat called Jólaköttur or Yule Cat.
unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign) : 1670 (with the horizontal bar over the inequality sign, rather than below it) ...
In the context of a rocket launch, the "L minus Time" is the physical time before launch, e.g. "L minus 3 minutes and 40 seconds". "T minus Time" is a system to mark points at which actions necessary for the launch are planned - this time stops and starts as various hold points are entered, and so doesn't show the actual time to launch.
The Nile flood at Cairo c. 1830.. Current understanding of the earliest development of the Egyptian calendar remains speculative. A tablet from the reign of the First Dynasty pharaoh Djer (c. 3000 BC) was once thought to indicate that the Egyptians had already established a link between the heliacal rising of Sirius (Ancient Egyptian: Spdt or Sopdet, "Triangle"; Ancient Greek: Σῶθις ...
A common exception is a series of values: The distances were 1 + 1 ⁄ 4, 2 ⁄ 3 and 1 ⁄ 2 mile, respectively. Mixed numbers may be given in figures or words (perhaps applying the guidance above to the integer part). If given in figures, they are unspaced (not Platform 9 3 ⁄ 4 or Platform 9-3 ⁄ 4 but Platform 9 + 3 ⁄ 4 (markup: {{frac ...