The Great Gross is a fascinating old-world unit of measure that might surprise many with its sheer scale. Representing 12 Gross (or 144 dozens), a Great Gross equals a whopping 1,728 individual items! Used historically in wholesale trade, especially during the medieval and early modern periods in Europe, this unit provided efficiency in large-scale commerce, allowing for easy calculation and transaction in bulk goods like candles, eggs, or textiles.
While not commonly used in modern trade, the Great Gross underscores historical trade practices and quantification in a world before digital analytics. Imagine being a merchant in a bustling market, selling your goods in Great Grosses—an image that conjures the vibrant rhythms of bygone eras and highlights the evolution of our measurement systems over time.
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.
| Great Gross | Couples |
|---|---|
0
gr-gr
|
0
cp
|
0.5
gr-gr
|
432
cp
|
1
gr-gr
|
864
cp
|
1.5
gr-gr
|
1296
cp
|
2
gr-gr
|
1728
cp
|
2.5
gr-gr
|
2160
cp
|
3
gr-gr
|
2592
cp
|
3.5
gr-gr
|
3024
cp
|
4
gr-gr
|
3456
cp
|
4.5
gr-gr
|
3888
cp
|
5
gr-gr
|
4320
cp
|
5.5
gr-gr
|
4752
cp
|
6
gr-gr
|
5184
cp
|
6.5
gr-gr
|
5616
cp
|
7
gr-gr
|
6048
cp
|
7.5
gr-gr
|
6480
cp
|
8
gr-gr
|
6912
cp
|
8.5
gr-gr
|
7344
cp
|
9
gr-gr
|
7776
cp
|
9.5
gr-gr
|
8208
cp
|
10
gr-gr
|
8640
cp
|
10.5
gr-gr
|
9072
cp
|
11
gr-gr
|
9504
cp
|
11.5
gr-gr
|
9936
cp
|
12
gr-gr
|
10368
cp
|
12.5
gr-gr
|
10800
cp
|
13
gr-gr
|
11232
cp
|
13.5
gr-gr
|
11664
cp
|
14
gr-gr
|
12096
cp
|
14.5
gr-gr
|
12528
cp
|
15
gr-gr
|
12960
cp
|
15.5
gr-gr
|
13392
cp
|
16
gr-gr
|
13824
cp
|
16.5
gr-gr
|
14256
cp
|
17
gr-gr
|
14688
cp
|
17.5
gr-gr
|
15120
cp
|
18
gr-gr
|
15552
cp
|
18.5
gr-gr
|
15984
cp
|
19
gr-gr
|
16416
cp
|
19.5
gr-gr
|
16848
cp
|
20
gr-gr
|
17280
cp
|
20.5
gr-gr
|
17712
cp
|
21
gr-gr
|
18144
cp
|
21.5
gr-gr
|
18576
cp
|
22
gr-gr
|
19008
cp
|
22.5
gr-gr
|
19440
cp
|
23
gr-gr
|
19872
cp
|
23.5
gr-gr
|
20304
cp
|
24
gr-gr
|
20736
cp
|
24.5
gr-gr
|
21168
cp
|
25
gr-gr
|
21600
cp
|
25.5
gr-gr
|
22032
cp
|
26
gr-gr
|
22464
cp
|
26.5
gr-gr
|
22896
cp
|
27
gr-gr
|
23328
cp
|
27.5
gr-gr
|
23760
cp
|
28
gr-gr
|
24192
cp
|
28.5
gr-gr
|
24624
cp
|
29
gr-gr
|
25056
cp
|
29.5
gr-gr
|
25488
cp
|
30
gr-gr
|
25920
cp
|
30.5
gr-gr
|
26352
cp
|
31
gr-gr
|
26784
cp
|
31.5
gr-gr
|
27216
cp
|
32
gr-gr
|
27648
cp
|
32.5
gr-gr
|
28080
cp
|
33
gr-gr
|
28512
cp
|
33.5
gr-gr
|
28944
cp
|
34
gr-gr
|
29376
cp
|
34.5
gr-gr
|
29808
cp
|
35
gr-gr
|
30240
cp
|
35.5
gr-gr
|
30672
cp
|
36
gr-gr
|
31104
cp
|
36.5
gr-gr
|
31536
cp
|
37
gr-gr
|
31968
cp
|
37.5
gr-gr
|
32400
cp
|
38
gr-gr
|
32832
cp
|
38.5
gr-gr
|
33264
cp
|
39
gr-gr
|
33696
cp
|
39.5
gr-gr
|
34128
cp
|
40
gr-gr
|
34560
cp
|
40.5
gr-gr
|
34992
cp
|
41
gr-gr
|
35424
cp
|
41.5
gr-gr
|
35856
cp
|
42
gr-gr
|
36288
cp
|
42.5
gr-gr
|
36720
cp
|
43
gr-gr
|
37152
cp
|
43.5
gr-gr
|
37584
cp
|
44
gr-gr
|
38016
cp
|
44.5
gr-gr
|
38448
cp
|
45
gr-gr
|
38880
cp
|
45.5
gr-gr
|
39312
cp
|
46
gr-gr
|
39744
cp
|
46.5
gr-gr
|
40176
cp
|
47
gr-gr
|
40608
cp
|
47.5
gr-gr
|
41040
cp
|
48
gr-gr
|
41472
cp
|
48.5
gr-gr
|
41904
cp
|
49
gr-gr
|
42336
cp
|
49.5
gr-gr
|
42768
cp
|
50
gr-gr
|
43200
cp
|
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