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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.

Did you know?

An arcsecond is a fascinating unit of angular measurement used extensively in astronomy and geodesy. To grasp its minuteness, consider that an arcsecond is 1/3600th of a degree, and there are 360 degrees in a full circle. For practical perspective, the apparent size of a U.S. dime viewed from about 4 kilometers (or 2.5 miles) away roughly equals an arcsecond.

In the realm of astronomy, arcseconds are crucial for measuring celestial events and distances. The Hubble Space Telescope’s resolution power is often celebrated for its ability to distinguish details as tiny as about 0.05 arcseconds—akin to seeing a bumblebee 800 kilometers away! This unit’s precision is vital for understanding the cosmos, from determining stellar positions to mapping distant galaxies.

> Gradians to Arcseconds Conversion Table

Gradians Arcseconds
0 grad 0 arcsec
5 grad 16200 arcsec
10 grad 32400 arcsec
15 grad 48600 arcsec
20 grad 64800 arcsec
25 grad 81000 arcsec
30 grad 97200 arcsec
35 grad 113400 arcsec
40 grad 129600 arcsec
45 grad 145800 arcsec
50 grad 162000 arcsec
55 grad 178200 arcsec
60 grad 194400 arcsec
65 grad 210600 arcsec
70 grad 226800 arcsec
75 grad 243000 arcsec
80 grad 259200 arcsec
85 grad 275400 arcsec
90 grad 291600 arcsec
95 grad 307800 arcsec
100 grad 324000 arcsec
105 grad 340200 arcsec
110 grad 356400 arcsec
115 grad 372600 arcsec
120 grad 388800 arcsec
125 grad 405000 arcsec
130 grad 421200 arcsec
135 grad 437400 arcsec
140 grad 453600 arcsec
145 grad 469800 arcsec
150 grad 486000 arcsec
155 grad 502200 arcsec
160 grad 518400 arcsec
165 grad 534600 arcsec
170 grad 550800 arcsec
175 grad 567000 arcsec
180 grad 583200 arcsec
185 grad 599400 arcsec
190 grad 615600 arcsec
195 grad 631800 arcsec
200 grad 648000 arcsec
205 grad 664200 arcsec
210 grad 680400 arcsec
215 grad 696600 arcsec
220 grad 712800 arcsec
225 grad 729000 arcsec
230 grad 745200 arcsec
235 grad 761400 arcsec
240 grad 777600 arcsec
245 grad 793800 arcsec
250 grad 810000 arcsec
255 grad 826200 arcsec
260 grad 842400 arcsec
265 grad 858600 arcsec
270 grad 874800 arcsec
275 grad 891000 arcsec
280 grad 907200 arcsec
285 grad 923400 arcsec
290 grad 939600 arcsec
295 grad 955800 arcsec
300 grad 972000 arcsec
305 grad 988200 arcsec
310 grad 1004400 arcsec
315 grad 1020600 arcsec
320 grad 1036800 arcsec
325 grad 1053000 arcsec
330 grad 1069200 arcsec
335 grad 1085400 arcsec
340 grad 1101600 arcsec
345 grad 1117800 arcsec
350 grad 1134000 arcsec
355 grad 1150200 arcsec
360 grad 1166400 arcsec
365 grad 1182600 arcsec
370 grad 1198800 arcsec
375 grad 1215000 arcsec
380 grad 1231200 arcsec
385 grad 1247400 arcsec
390 grad 1263600 arcsec
395 grad 1279800 arcsec
400 grad 1296000 arcsec