• grad   arcmin
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The gradian, also known as a gon, is a fascinating and less commonly used unit of angular measurement. It divides a circle into 400 equal parts, unlike the more familiar degrees or radians. Interestingly, its use is more prevalent in surveying and engineering because it simplifies calculations—each right angle is exactly 100 gradians.

The gradian was introduced during the French Revolution as part of the metric system’s attempt to decimalize units of measurement. Though it didn’t gain widespread adoption, gradian remains a testament to innovative efforts in standardizing measurements. Its legacy continues, offering an intriguing alternative for those looking to simplify complex angular calculations or explore history’s impact on our mathematical tools.

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The arcminute, a unit of angular measurement, is an intriguing relic from astronomy and navigation. One arcminute equals 1/60th of a degree, and there are 60 arcminutes in a degree. To grasp its precision, consider that the human eye can typically perceive an angular resolution of about one arcminute, which is roughly the apparent size of a dime viewed from 75 feet away. This unit is essential in celestial mapping; for instance, the star Sirius has an apparent diameter of about six arcseconds, a subdivision of the arcminute, spotlighting just how detailed our measurement tools need to be.

Interestingly, the arcminute laid the groundwork for innovations like lunar distance in celestial navigation. Sailors in the 18th century used this unit to calculate longitudes, revolutionizing global exploration. Its precision helped navigate the vast oceans, turning the arcminute into a metric of discovery and adventure, not just measurement.

> Gradians to Arcminutes Conversion Table

Gradians Arcminutes
0 grad 0 arcmin
5 grad 270 arcmin
10 grad 540 arcmin
15 grad 810 arcmin
20 grad 1080 arcmin
25 grad 1350 arcmin
30 grad 1620 arcmin
35 grad 1890 arcmin
40 grad 2160 arcmin
45 grad 2430 arcmin
50 grad 2700 arcmin
55 grad 2970 arcmin
60 grad 3240 arcmin
65 grad 3510 arcmin
70 grad 3780 arcmin
75 grad 4050 arcmin
80 grad 4320 arcmin
85 grad 4590 arcmin
90 grad 4860 arcmin
95 grad 5130 arcmin
100 grad 5400 arcmin
105 grad 5670 arcmin
110 grad 5940 arcmin
115 grad 6210 arcmin
120 grad 6480 arcmin
125 grad 6750 arcmin
130 grad 7020 arcmin
135 grad 7290 arcmin
140 grad 7560 arcmin
145 grad 7830 arcmin
150 grad 8100 arcmin
155 grad 8370 arcmin
160 grad 8640 arcmin
165 grad 8910 arcmin
170 grad 9180 arcmin
175 grad 9450 arcmin
180 grad 9720 arcmin
185 grad 9990 arcmin
190 grad 10260 arcmin
195 grad 10530 arcmin
200 grad 10800 arcmin
205 grad 11070 arcmin
210 grad 11340 arcmin
215 grad 11610 arcmin
220 grad 11880 arcmin
225 grad 12150 arcmin
230 grad 12420 arcmin
235 grad 12690 arcmin
240 grad 12960 arcmin
245 grad 13230 arcmin
250 grad 13500 arcmin
255 grad 13770 arcmin
260 grad 14040 arcmin
265 grad 14310 arcmin
270 grad 14580 arcmin
275 grad 14850 arcmin
280 grad 15120 arcmin
285 grad 15390 arcmin
290 grad 15660 arcmin
295 grad 15930 arcmin
300 grad 16200 arcmin
305 grad 16470 arcmin
310 grad 16740 arcmin
315 grad 17010 arcmin
320 grad 17280 arcmin
325 grad 17550 arcmin
330 grad 17820 arcmin
335 grad 18090 arcmin
340 grad 18360 arcmin
345 grad 18630 arcmin
350 grad 18900 arcmin
355 grad 19170 arcmin
360 grad 19440 arcmin
365 grad 19710 arcmin
370 grad 19980 arcmin
375 grad 20250 arcmin
380 grad 20520 arcmin
385 grad 20790 arcmin
390 grad 21060 arcmin
395 grad 21330 arcmin
400 grad 21600 arcmin