Time
| |
seconds |
| 1 minute |
60 |
| 1 hour |
3600 |
| 1 day |
86400 |
| 1 week |
604800 |
| 1 month |
2629800 |
| 1 year |
315576000 |
Atomic Weights of Common Vacuum Materials
| Element |
Symbol |
Atomic weight |
| Aluminium |
Al |
26.98154 |
| Argon |
Ar |
39.948 |
| Copper |
Cu |
63.54600 |
| Gold |
Au |
196.9665 |
| Helium |
He |
4.0026 |
| Hydrogen |
H |
1.0079 |
| Indium |
In |
114.82 |
| Iridium |
Ir |
192.22 |
| Iron |
Fe |
55.847 |
| Molybdenum |
Mo |
95.94 |
| Neon |
Ne |
20.179 |
| Nickel |
Ni |
58.69 |
| Nitrogen |
N |
14.0067 |
| Oxygen |
O |
15.9994 |
| Platinum |
Pt |
195.08 |
| Silver |
Ag |
107.868 |
| Thorium |
Th |
232.0381 |
| Titanium |
Ti |
47.88 |
| Tungsten |
W |
183.85 |