The “Glas” is an intriguing, though lesser-known, unit of volume, traditionally used in the Netherlands to measure wine and spirits. Dating back to the 1800s, one Glas was approximately equivalent to 150 milliliters, aligning closely with a standard modern wine glass. Its historical use highlights how cultures have tailored measurement systems to fit specific social practices, such as enjoying wine in communal settings, thus embodying the close relationship between cultural traditions and measurement systems.
While it has mostly fallen out of use today, the Glas provides a fascinating glimpse into historical consumption habits and the evolution of standard units. It reminds us that units of measurement are not merely mathematical constructs but are also deeply influenced by the lifestyles and practices of their time.
A cubic kilometer might sound abstract, but it’s a colossal unit of volume measurement that fires the imagination. Imagine a giant cube stretching a kilometer – that’s 1,000 meters – long on each side, containing one billion cubic meters! To visualize, picture over 400,000 Olympic-size swimming pools packed into that space. Cubic kilometers are often used to gauge the volume of large water bodies, like net water storage in massive reservoirs or the extent of vast glaciers.
Additionally, the mighty oceans of Earth collectively hold around 1.332 billion cubic kilometers of water. Despite their size covering 71% of Earth’s surface, converting ocean volumes into cubic kilometers provides a more graspable scale of our planet’s vast aquatic expanse, helping scientists track changes over time.
| Glas | Cubic kilometers |
|---|---|
0
glas
|
0
km³
|
0.5
glas
|
1e-13
km³
|
1
glas
|
2e-13
km³
|
1.5
glas
|
3e-13
km³
|
2
glas
|
4e-13
km³
|
2.5
glas
|
5e-13
km³
|
3
glas
|
6e-13
km³
|
3.5
glas
|
7e-13
km³
|
4
glas
|
8e-13
km³
|
4.5
glas
|
9e-13
km³
|
5
glas
|
1e-12
km³
|
5.5
glas
|
1.1e-12
km³
|
6
glas
|
1.2e-12
km³
|
6.5
glas
|
1.3e-12
km³
|
7
glas
|
1.4e-12
km³
|
7.5
glas
|
1.5e-12
km³
|
8
glas
|
1.6e-12
km³
|
8.5
glas
|
1.7e-12
km³
|
9
glas
|
1.8e-12
km³
|
9.5
glas
|
1.9e-12
km³
|
10
glas
|
2e-12
km³
|
10.5
glas
|
2.1e-12
km³
|
11
glas
|
2.2e-12
km³
|
11.5
glas
|
2.3e-12
km³
|
12
glas
|
2.4e-12
km³
|
12.5
glas
|
2.5e-12
km³
|
13
glas
|
2.6e-12
km³
|
13.5
glas
|
2.7e-12
km³
|
14
glas
|
2.8e-12
km³
|
14.5
glas
|
2.9e-12
km³
|
15
glas
|
3e-12
km³
|
15.5
glas
|
3.1e-12
km³
|
16
glas
|
3.2e-12
km³
|
16.5
glas
|
3.3e-12
km³
|
17
glas
|
3.4e-12
km³
|
17.5
glas
|
3.5e-12
km³
|
18
glas
|
3.6e-12
km³
|
18.5
glas
|
3.7e-12
km³
|
19
glas
|
3.8e-12
km³
|
19.5
glas
|
3.9e-12
km³
|
20
glas
|
4e-12
km³
|
20.5
glas
|
4.1e-12
km³
|
21
glas
|
4.2e-12
km³
|
21.5
glas
|
4.3e-12
km³
|
22
glas
|
4.4e-12
km³
|
22.5
glas
|
4.5e-12
km³
|
23
glas
|
4.6e-12
km³
|
23.5
glas
|
4.7e-12
km³
|
24
glas
|
4.8e-12
km³
|
24.5
glas
|
4.9e-12
km³
|
25
glas
|
5e-12
km³
|
25.5
glas
|
5.1e-12
km³
|
26
glas
|
5.2e-12
km³
|
26.5
glas
|
5.3e-12
km³
|
27
glas
|
5.4e-12
km³
|
27.5
glas
|
5.5e-12
km³
|
28
glas
|
5.6e-12
km³
|
28.5
glas
|
5.7e-12
km³
|
29
glas
|
5.8e-12
km³
|
29.5
glas
|
5.9e-12
km³
|
30
glas
|
6e-12
km³
|
30.5
glas
|
6.1e-12
km³
|
31
glas
|
6.2e-12
km³
|
31.5
glas
|
6.3e-12
km³
|
32
glas
|
6.4e-12
km³
|
32.5
glas
|
6.5e-12
km³
|
33
glas
|
6.6e-12
km³
|
33.5
glas
|
6.7e-12
km³
|
34
glas
|
6.8e-12
km³
|
34.5
glas
|
6.9e-12
km³
|
35
glas
|
7e-12
km³
|
35.5
glas
|
7.1e-12
km³
|
36
glas
|
7.2e-12
km³
|
36.5
glas
|
7.3e-12
km³
|
37
glas
|
7.4e-12
km³
|
37.5
glas
|
7.5e-12
km³
|
38
glas
|
7.6e-12
km³
|
38.5
glas
|
7.7e-12
km³
|
39
glas
|
7.8e-12
km³
|
39.5
glas
|
7.9e-12
km³
|
40
glas
|
8e-12
km³
|
40.5
glas
|
8.1e-12
km³
|
41
glas
|
8.2e-12
km³
|
41.5
glas
|
8.3e-12
km³
|
42
glas
|
8.4e-12
km³
|
42.5
glas
|
8.5e-12
km³
|
43
glas
|
8.6e-12
km³
|
43.5
glas
|
8.7e-12
km³
|
44
glas
|
8.8e-12
km³
|
44.5
glas
|
8.9e-12
km³
|
45
glas
|
9e-12
km³
|
45.5
glas
|
9.1e-12
km³
|
46
glas
|
9.2e-12
km³
|
46.5
glas
|
9.3e-12
km³
|
47
glas
|
9.4e-12
km³
|
47.5
glas
|
9.5e-12
km³
|
48
glas
|
9.6e-12
km³
|
48.5
glas
|
9.7e-12
km³
|
49
glas
|
9.8e-12
km³
|
49.5
glas
|
9.9e-12
km³
|
50
glas
|
1e-11
km³
|
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