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In the mid-1960s, to defeat the advantage of the recently introduced computers for the then popular rally racing in the Midwest, competition lag times in a few events were given in centids (1 ⁄ 100 day, 864 seconds, 14.4 minutes), millids (1 ⁄ 1,000 day, 86.4 seconds), and centims (1 ⁄ 100 minute, 0.6 seconds) the latter two looking and ...
The original standard MC60 microcassette contained 43.2 m (142 ft) of tape for 30 minutes recording per side at 2.4 cm/s (about 15 ⁄ 16 ips, making it half the standard speed of a compact cassette). Most recorders also provide a slower speed of 1.2 cm/s, doubling the recording time but with poor sound quality. The only other common sizes are ...
The barrel was rifled for 8.122 metres (319.76 in). The rifling consisted of 60 grooves cut to a depth of 0.75 inches (1.9 cm) with a width of 0.295 inches (0.75 cm). [4] These grooves were cut with a uniform right hand twist of one every 25.59 inches (65.0 cm). The chamber volume was 5,595 cubic inches (in 3) (91.682 decimeters cubed (dm 3)). [5]
The system's characteristics are that density is expressed in g/cm 3, force expressed in dynes and mechanical energy in ergs. Thermal energy was defined in calories, one calorie being the energy required to raise the temperature of one gram of water from 15.5 °C to 16.5 °C.
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol ′, is a unit of angular measurement equal to 1 / 60 of one degree. [1] Since one degree is 1 / 360 of a turn, or complete rotation, one arcminute is 1 / 21 600 of a turn.
The angular resolution was 10° × 10°, with an effective area of 3 cm 2 (0.465 sq in), and a bandpass of 3–6 keV. The ASM was designed to fit a resource budget of 2 kg (4.4 lb), 1 bit per second, and 1 W. [ 8 ]
For 6/6 = 1.0 acuity, the size of a letter on the Snellen chart or Landolt C chart is a visual angle of 5 arc minutes (1 arc min = 1/60 of a degree), which is a 43 point font at 20 feet. [10] By the design of a typical optotype (like a Snellen E or a Landolt C), the critical gap that needs to be resolved is 1/5 this value, i.e., 1 arc min.
The Type 2 14-pounder James rifle measured 74 in (188.0 cm) from muzzle to the end of the knob and 69.75 in (177.2 cm) from muzzle to base, excluding the knob. Its bore length was 65 in (165.1 cm) and it measured 64 in (162.6 cm) from muzzle to vent.