The inch, once the size of a barleycorn kernel, has fascinating origins. Early English measurement systems based it on the width of a man’s thumb. In the 14th century, King Edward II of England formalized it, defining an inch as the length of three barleycorns laid end to end. Historically, the inch was crucial for countless innovations, especially in Anglo-Saxon countries, influencing everything from watchmaking to industrial design.
Today, the inch still plays an integral role in areas like screen sizes and standardized paper dimensions, delighting both tech enthusiasts and everyday users. Interestingly, in surveying, an inch is divided into hundredths in the US, showing its adaptability in precision tasks. Despite the global shift towards the metric system, the inch endures, showcasing its resilience and continued relevance.
A nanometer is an incredibly small unit of length in the metric system, representing one billionth of a meter (1 nm = 1 x 10^-9 meters). To put it into perspective, if a human hair were as wide as the Earth, a nanometer would be about the size of a marble. This unit is essential in fields like nanotechnology and biology, where it measures atomic and molecular structures.
Historically, scientists have delved into the nanometer scale to manipulate materials at the atomic level, leading to groundbreaking innovations such as quantum dots and targeted drug delivery systems. Interestingly, the wavelength of visible light ranges from about 400 to 700 nanometers, which is why nanotechnology can manipulate light for applications like creating more vivid screen displays.
| Inches | Nanometers |
|---|---|
0
in
|
0
nm
|
1
in
|
2.54e+7
nm
|
2
in
|
5.08e+7
nm
|
3
in
|
7.62e+7
nm
|
4
in
|
1.016e+8
nm
|
5
in
|
1.27e+8
nm
|
6
in
|
1.524e+8
nm
|
7
in
|
1.778e+8
nm
|
8
in
|
2.032e+8
nm
|
9
in
|
2.286e+8
nm
|
10
in
|
2.54e+8
nm
|
11
in
|
2.794e+8
nm
|
12
in
|
3.048e+8
nm
|
13
in
|
3.302e+8
nm
|
14
in
|
3.556e+8
nm
|
15
in
|
3.81e+8
nm
|
16
in
|
4.064e+8
nm
|
17
in
|
4.318e+8
nm
|
18
in
|
4.572e+8
nm
|
19
in
|
4.826e+8
nm
|
20
in
|
5.08e+8
nm
|
21
in
|
5.334e+8
nm
|
22
in
|
5.588e+8
nm
|
23
in
|
5.842e+8
nm
|
24
in
|
6.096e+8
nm
|
25
in
|
6.35e+8
nm
|
26
in
|
6.604e+8
nm
|
27
in
|
6.858e+8
nm
|
28
in
|
7.112e+8
nm
|
29
in
|
7.366e+8
nm
|
30
in
|
7.62e+8
nm
|
31
in
|
7.874e+8
nm
|
32
in
|
8.128e+8
nm
|
33
in
|
8.382e+8
nm
|
34
in
|
8.636e+8
nm
|
35
in
|
8.89e+8
nm
|
36
in
|
9.144e+8
nm
|
37
in
|
9.398e+8
nm
|
38
in
|
9.652e+8
nm
|
39
in
|
9.906e+8
nm
|
40
in
|
1.016e+9
nm
|
41
in
|
1.0414e+9
nm
|
42
in
|
1.0668e+9
nm
|
43
in
|
1.0922e+9
nm
|
44
in
|
1.1176e+9
nm
|
45
in
|
1.143e+9
nm
|
46
in
|
1.1684e+9
nm
|
47
in
|
1.1938e+9
nm
|
48
in
|
1.2192e+9
nm
|
49
in
|
1.2446e+9
nm
|
50
in
|
1.27e+9
nm
|
51
in
|
1.2954e+9
nm
|
52
in
|
1.3208e+9
nm
|
53
in
|
1.3462e+9
nm
|
54
in
|
1.3716e+9
nm
|
55
in
|
1.397e+9
nm
|
56
in
|
1.4224e+9
nm
|
57
in
|
1.4478e+9
nm
|
58
in
|
1.4732e+9
nm
|
59
in
|
1.4986e+9
nm
|
60
in
|
1.524e+9
nm
|
61
in
|
1.5494e+9
nm
|
62
in
|
1.5748e+9
nm
|
63
in
|
1.6002e+9
nm
|
64
in
|
1.6256e+9
nm
|
65
in
|
1.651e+9
nm
|
66
in
|
1.6764e+9
nm
|
67
in
|
1.7018e+9
nm
|
68
in
|
1.7272e+9
nm
|
69
in
|
1.7526e+9
nm
|
70
in
|
1.778e+9
nm
|
71
in
|
1.8034e+9
nm
|
72
in
|
1.8288e+9
nm
|
73
in
|
1.8542e+9
nm
|
74
in
|
1.8796e+9
nm
|
75
in
|
1.905e+9
nm
|
76
in
|
1.9304e+9
nm
|
77
in
|
1.9558e+9
nm
|
78
in
|
1.9812e+9
nm
|
79
in
|
2.0066e+9
nm
|
80
in
|
2.032e+9
nm
|
81
in
|
2.0574e+9
nm
|
82
in
|
2.0828e+9
nm
|
83
in
|
2.1082e+9
nm
|
84
in
|
2.1336e+9
nm
|
85
in
|
2.159e+9
nm
|
86
in
|
2.1844e+9
nm
|
87
in
|
2.2098e+9
nm
|
88
in
|
2.2352e+9
nm
|
89
in
|
2.2606e+9
nm
|
90
in
|
2.286e+9
nm
|
91
in
|
2.3114e+9
nm
|
92
in
|
2.3368e+9
nm
|
93
in
|
2.3622e+9
nm
|
94
in
|
2.3876e+9
nm
|
95
in
|
2.413e+9
nm
|
96
in
|
2.4384e+9
nm
|
97
in
|
2.4638e+9
nm
|
98
in
|
2.4892e+9
nm
|
99
in
|
2.5146e+9
nm
|
100
in
|
2.54e+9
nm
|
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