Often used in trade and commerce, a “gross” is a fascinating unit of measure that signifies a dozen dozens, or 144 items. This term has its roots in the French word “grosse douzaine,” which translates to “large dozen.” Widely used in industries like the printing and manufacturing of items such as pencils or eggs, this unit provides an efficient way to manage and standardize bulk quantities.
A captivating use of the gross came from its influence on “gross income” or “gross profit,” reflecting on the idea of a total before deductions. This unit’s consistency simplifies accounting and inventory, and its history is a testament to the practicality needed in the global development of trade practices.
The “couple” is an intriguing unit that measures torque, essentially describing a pair of equal and opposite forces acting on a body in parallel planes. Despite its relatively obscure use in modern contexts compared to units like the newton-meter, the concept of a couple is fundamental in engineering and physics. It is vital in the analysis of systems that require rotational movements, such as gears, engines, and propeller shafts, highlighting the unit’s significance in various mechanical and structural applications.
Interestingly, what’s unique about a couple is that its effectiveness is independent of the point of rotation. This property allows engineers to simplify complex systems, focusing purely on the magnitude and direction of rotation rather than the specific pivot point, making their calculations both practical and efficient.
| Gross | Couples |
|---|---|
0
gros
|
0
cp
|
0.5
gros
|
36
cp
|
1
gros
|
72
cp
|
1.5
gros
|
108
cp
|
2
gros
|
144
cp
|
2.5
gros
|
180
cp
|
3
gros
|
216
cp
|
3.5
gros
|
252
cp
|
4
gros
|
288
cp
|
4.5
gros
|
324
cp
|
5
gros
|
360
cp
|
5.5
gros
|
396
cp
|
6
gros
|
432
cp
|
6.5
gros
|
468
cp
|
7
gros
|
504
cp
|
7.5
gros
|
540
cp
|
8
gros
|
576
cp
|
8.5
gros
|
612
cp
|
9
gros
|
648
cp
|
9.5
gros
|
684
cp
|
10
gros
|
720
cp
|
10.5
gros
|
756
cp
|
11
gros
|
792
cp
|
11.5
gros
|
828
cp
|
12
gros
|
864
cp
|
12.5
gros
|
900
cp
|
13
gros
|
936
cp
|
13.5
gros
|
972
cp
|
14
gros
|
1008
cp
|
14.5
gros
|
1044
cp
|
15
gros
|
1080
cp
|
15.5
gros
|
1116
cp
|
16
gros
|
1152
cp
|
16.5
gros
|
1188
cp
|
17
gros
|
1224
cp
|
17.5
gros
|
1260
cp
|
18
gros
|
1296
cp
|
18.5
gros
|
1332
cp
|
19
gros
|
1368
cp
|
19.5
gros
|
1404
cp
|
20
gros
|
1440
cp
|
20.5
gros
|
1476
cp
|
21
gros
|
1512
cp
|
21.5
gros
|
1548
cp
|
22
gros
|
1584
cp
|
22.5
gros
|
1620
cp
|
23
gros
|
1656
cp
|
23.5
gros
|
1692
cp
|
24
gros
|
1728
cp
|
24.5
gros
|
1764
cp
|
25
gros
|
1800
cp
|
25.5
gros
|
1836
cp
|
26
gros
|
1872
cp
|
26.5
gros
|
1908
cp
|
27
gros
|
1944
cp
|
27.5
gros
|
1980
cp
|
28
gros
|
2016
cp
|
28.5
gros
|
2052
cp
|
29
gros
|
2088
cp
|
29.5
gros
|
2124
cp
|
30
gros
|
2160
cp
|
30.5
gros
|
2196
cp
|
31
gros
|
2232
cp
|
31.5
gros
|
2268
cp
|
32
gros
|
2304
cp
|
32.5
gros
|
2340
cp
|
33
gros
|
2376
cp
|
33.5
gros
|
2412
cp
|
34
gros
|
2448
cp
|
34.5
gros
|
2484
cp
|
35
gros
|
2520
cp
|
35.5
gros
|
2556
cp
|
36
gros
|
2592
cp
|
36.5
gros
|
2628
cp
|
37
gros
|
2664
cp
|
37.5
gros
|
2700
cp
|
38
gros
|
2736
cp
|
38.5
gros
|
2772
cp
|
39
gros
|
2808
cp
|
39.5
gros
|
2844
cp
|
40
gros
|
2880
cp
|
40.5
gros
|
2916
cp
|
41
gros
|
2952
cp
|
41.5
gros
|
2988
cp
|
42
gros
|
3024
cp
|
42.5
gros
|
3060
cp
|
43
gros
|
3096
cp
|
43.5
gros
|
3132
cp
|
44
gros
|
3168
cp
|
44.5
gros
|
3204
cp
|
45
gros
|
3240
cp
|
45.5
gros
|
3276
cp
|
46
gros
|
3312
cp
|
46.5
gros
|
3348
cp
|
47
gros
|
3384
cp
|
47.5
gros
|
3420
cp
|
48
gros
|
3456
cp
|
48.5
gros
|
3492
cp
|
49
gros
|
3528
cp
|
49.5
gros
|
3564
cp
|
50
gros
|
3600
cp
|
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