The meter, adopted in 1799, is the fundamental unit of length in the International System of Units (SI). Originally based on a fraction of the Earth’s meridian, its definition evolved with technological advancements. It is now precisely defined by the distance light travels in a vacuum in 1/299,792,458 of a second, linking it to the universal constant of the speed of light. This ensures unparalleled accuracy and consistency in scientific measurements across the globe.
Interestingly, the concept of a meter has influenced daily life far beyond science. It is essential in urban planning, architecture, and sports. For instance, track lengths in athletics are meticulously designed using meters, ensuring fair competition and record standards worldwide. The meter’s universality promotes consistency and understanding in a wide array of disciplines.
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.
| Meters | Nanometers |
|---|---|
0
m
|
0
nm
|
1
m
|
1e+9
nm
|
2
m
|
2e+9
nm
|
3
m
|
3e+9
nm
|
4
m
|
4e+9
nm
|
5
m
|
5e+9
nm
|
6
m
|
6e+9
nm
|
7
m
|
7e+9
nm
|
8
m
|
8e+9
nm
|
9
m
|
9e+9
nm
|
10
m
|
1e+10
nm
|
11
m
|
1.1e+10
nm
|
12
m
|
1.2e+10
nm
|
13
m
|
1.3e+10
nm
|
14
m
|
1.4e+10
nm
|
15
m
|
1.5e+10
nm
|
16
m
|
1.6e+10
nm
|
17
m
|
1.7e+10
nm
|
18
m
|
1.8e+10
nm
|
19
m
|
1.9e+10
nm
|
20
m
|
2e+10
nm
|
21
m
|
2.1e+10
nm
|
22
m
|
2.2e+10
nm
|
23
m
|
2.3e+10
nm
|
24
m
|
2.4e+10
nm
|
25
m
|
2.5e+10
nm
|
26
m
|
2.6e+10
nm
|
27
m
|
2.7e+10
nm
|
28
m
|
2.8e+10
nm
|
29
m
|
2.9e+10
nm
|
30
m
|
3e+10
nm
|
31
m
|
3.1e+10
nm
|
32
m
|
3.2e+10
nm
|
33
m
|
3.3e+10
nm
|
34
m
|
3.4e+10
nm
|
35
m
|
3.5e+10
nm
|
36
m
|
3.6e+10
nm
|
37
m
|
3.7e+10
nm
|
38
m
|
3.8e+10
nm
|
39
m
|
3.9e+10
nm
|
40
m
|
4e+10
nm
|
41
m
|
4.1e+10
nm
|
42
m
|
4.2e+10
nm
|
43
m
|
4.3e+10
nm
|
44
m
|
4.4e+10
nm
|
45
m
|
4.5e+10
nm
|
46
m
|
4.6e+10
nm
|
47
m
|
4.7e+10
nm
|
48
m
|
4.8e+10
nm
|
49
m
|
4.9e+10
nm
|
50
m
|
5e+10
nm
|
51
m
|
5.1e+10
nm
|
52
m
|
5.2e+10
nm
|
53
m
|
5.3e+10
nm
|
54
m
|
5.4e+10
nm
|
55
m
|
5.5e+10
nm
|
56
m
|
5.6e+10
nm
|
57
m
|
5.7e+10
nm
|
58
m
|
5.8e+10
nm
|
59
m
|
5.9e+10
nm
|
60
m
|
6e+10
nm
|
61
m
|
6.1e+10
nm
|
62
m
|
6.2e+10
nm
|
63
m
|
6.3e+10
nm
|
64
m
|
6.4e+10
nm
|
65
m
|
6.5e+10
nm
|
66
m
|
6.6e+10
nm
|
67
m
|
6.7e+10
nm
|
68
m
|
6.8e+10
nm
|
69
m
|
6.9e+10
nm
|
70
m
|
7e+10
nm
|
71
m
|
7.1e+10
nm
|
72
m
|
7.2e+10
nm
|
73
m
|
7.3e+10
nm
|
74
m
|
7.4e+10
nm
|
75
m
|
7.5e+10
nm
|
76
m
|
7.6e+10
nm
|
77
m
|
7.7e+10
nm
|
78
m
|
7.8e+10
nm
|
79
m
|
7.9e+10
nm
|
80
m
|
8e+10
nm
|
81
m
|
8.1e+10
nm
|
82
m
|
8.2e+10
nm
|
83
m
|
8.3e+10
nm
|
84
m
|
8.4e+10
nm
|
85
m
|
8.5e+10
nm
|
86
m
|
8.6e+10
nm
|
87
m
|
8.7e+10
nm
|
88
m
|
8.8e+10
nm
|
89
m
|
8.9e+10
nm
|
90
m
|
9e+10
nm
|
91
m
|
9.1e+10
nm
|
92
m
|
9.2e+10
nm
|
93
m
|
9.3e+10
nm
|
94
m
|
9.4e+10
nm
|
95
m
|
9.5e+10
nm
|
96
m
|
9.6e+10
nm
|
97
m
|
9.7e+10
nm
|
98
m
|
9.8e+10
nm
|
99
m
|
9.9e+10
nm
|
100
m
|
1e+11
nm
|
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