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This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
Formula weight calculator: The input is a chemical molecular formula, using the periodic-table symbols and notation, and there is a button to work out the percentages of its constituents. Astronomical calculator : The input is a date and one or multiple celestial bodies (usually the sun, moon, planets, planetoids or comets).
single seconds (1 das = 10 s) 6 das: One minute (min), the time it takes a second hand to cycle around a clock face 10 2: hectosecond hs minutes (1 hs = 1 min 40 s = 100 s) 2 hs (3 min 20 s): The average length of the most popular YouTube videos as of January 2017 [15] 5.55 hs (9 min 12 s): The longest videos in the above study
A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.
Made in Japan, this was also the first calculator to use an LED display, the first hand-held calculator to use a single integrated circuit (then proclaimed as a "calculator on a chip"), the Mostek MK6010, and the first electronic calculator to run off replaceable batteries. Using four AA-size cells the LE-120A measures 4.9 by 2.8 by 0.9 inches ...
The proposed figures on the right are based on rotations of those on the left (assigning value 10 to symbol 9). A hexadecimal clock-face (using the Florence meridian ) Hexadecimal time is the representation of the time of day as a hexadecimal number in the interval [0, 1).
26×10 characters (large font) 7.5 × 3.3 × 0.9: No 2013 150 Allowed Allowed TI-84 Plus CE: Zilog eZ80 @ 48 MHz 256 KB of RAM (154 KB user accessible), 4 MB of Flash ROM (3 MB user accessible) 320×240 pixels 26×10 characters (large font) 7.6 × 3.4 × 0.75: No 2015 150 Allowed Allowed TI-85: Zilog Z80 @ 6 MHz 28 KB of RAM 128×64 pixels
For others, there would be 50 decimal minutes per decimal hour, and 100 decimal seconds per decimal minute. His new hours, minutes, and seconds would thus be more similar to the old units. [14] C.A. Prieur (of the Côte-d'Or), read at the National Convention on Ventôse 11, year III (March 1, 1795):