moment | 1 moment | 2 moment | 3 moment | 4 moment | 5 moment | 6 moment | 7 moment | 8 moment | 9 moment | 10 moment | 11 moment | 12 moment | 13 moment | 14 moment | 15 moment | 16 moment | 17 moment | 18 moment | 19 moment | 20 moment | 21 moment | 22 moment | 23 moment | 24 moment | 25 moment | 26 moment | 27 moment | 28 moment | 29 moment | 30 moment | 31 moment | 32 moment | 33 moment | 34 moment | 35 moment | 36 moment | 37 moment | 38 moment | 39 moment | 40 moment | 41 moment | 42 moment | 43 moment | 44 moment | 45 moment | 46 moment | 47 moment | 48 moment | 49 moment | 50 moment | 51 moment | 52 moment | 53 moment | 54 moment | 55 moment | 56 moment | 57 moment | 58 moment | 59 moment | 60 moment | 61 moment | 62 moment | 63 moment | 64 moment | 65 moment | 66 moment | 67 moment | 68 moment | 69 moment | 70 moment | 71 moment | 72 moment | 73 moment | 74 moment | 75 moment | 76 moment | 77 moment | 78 moment | 79 moment | 80 moment | 81 moment | 82 moment | 83 moment | 84 moment | 85 moment | 86 moment | 87 moment | 88 moment | 89 moment | 90 moment | 91 moment | 92 moment | 93 moment | 94 moment | 95 moment | 96 moment | 97 moment | 98 moment | 99 moment | 100 moment |
attosecond | 9.0 × 1019 as | 1.8 × 1020 as | 2.7 × 1020 as | 3.6 × 1020 as | 4.5 × 1020 as | 5.4 × 1020 as | 6.3 × 1020 as | 7.2 × 1020 as | 8.1 × 1020 as | 9.0 × 1020 as | 9.9 × 1020 as | 1.08 × 1021 as | 1.17 × 1021 as | 1.26 × 1021 as | 1.35 × 1021 as | 1.44 × 1021 as | 1.53 × 1021 as | 1.62 × 1021 as | 1.71 × 1021 as | 1.8 × 1021 as | 1.89 × 1021 as | 1.98 × 1021 as | 2.07 × 1021 as | 2.16 × 1021 as | 2.25 × 1021 as | 2.34 × 1021 as | 2.43 × 1021 as | 2.52 × 1021 as | 2.61 × 1021 as | 2.7 × 1021 as | 2.79 × 1021 as | 2.88 × 1021 as | 2.97 × 1021 as | 3.06 × 1021 as | 3.15 × 1021 as | 3.24 × 1021 as | 3.33 × 1021 as | 3.42 × 1021 as | 3.51 × 1021 as | 3.6 × 1021 as | 3.69 × 1021 as | 3.78 × 1021 as | 3.87 × 1021 as | 3.96 × 1021 as | 4.05 × 1021 as | 4.14 × 1021 as | 4.23 × 1021 as | 4.32 × 1021 as | 4.41 × 1021 as | 4.5 × 1021 as | 4.59 × 1021 as | 4.68 × 1021 as | 4.77 × 1021 as | 4.86 × 1021 as | 4.95 × 1021 as | 5.04 × 1021 as | 5.13 × 1021 as | 5.22 × 1021 as | 5.31 × 1021 as | 5.4 × 1021 as | 5.49 × 1021 as | 5.58 × 1021 as | 5.67 × 1021 as | 5.76 × 1021 as | 5.85 × 1021 as | 5.94 × 1021 as | 6.03 × 1021 as | 6.12 × 1021 as | 6.21 × 1021 as | 6.3 × 1021 as | 6.39 × 1021 as | 6.48 × 1021 as | 6.57 × 1021 as | 6.66 × 1021 as | 6.75 × 1021 as | 6.84 × 1021 as | 6.93 × 1021 as | 7.02 × 1021 as | 7.11 × 1021 as | 7.2 × 1021 as | 7.29 × 1021 as | 7.38 × 1021 as | 7.47 × 1021 as | 7.56 × 1021 as | 7.65 × 1021 as | 7.74 × 1021 as | 7.83 × 1021 as | 7.92 × 1021 as | 8.01 × 1021 as | 8.1 × 1021 as | 8.19 × 1021 as | 8.28 × 1021 as | 8.37 × 1021 as | 8.46 × 1021 as | 8.55 × 1021 as | 8.64 × 1021 as | 8.73 × 1021 as | 8.82 × 1021 as | 8.91 × 1021 as | 9.0 × 1021 as |
A moment (momentum) was a medieval unit of time. The movement of a shadow on a sundial covered 40 moments in a solar hour.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
moment | ≡ 90 s | ≡ 90 s | Metric system SI |
moments | attoseconds | moments | attoseconds |
---|---|---|---|
1 | ≡ 9.0E+19 | 6 | ≡ 5.4E+20 |
2 | ≡ 1.8E+20 | 7 | ≡ 6.3E+20 |
3 | ≡ 2.7E+20 | 8 | ≡ 7.2E+20 |
4 | ≡ 3.6E+20 | 9 | ≡ 8.1E+20 |
5 | ≡ 4.5E+20 | 10 | ≡ 9.0E+20 |
Attosecond is equal to 10 second (unit of time), comes from a combination of the metric prefix atto (a) with the second (s). Plural name is attoseconds with symbol is as.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attosecond | as | ≡ 10-18 second | ≡ 10-18 second | Metric system SI |
attoseconds | moments | attoseconds | moments |
---|---|---|---|
1 | ≡ 1.1111111111111E-20 | 6 | ≡ 6.6666666666667E-20 |
2 | ≡ 2.2222222222222E-20 | 7 | ≡ 7.7777777777778E-20 |
3 | ≡ 3.3333333333333E-20 | 8 | ≡ 8.8888888888889E-20 |
4 | ≡ 4.4444444444444E-20 | 9 | ≡ 1.0E-19 |
5 | ≡ 5.5555555555556E-20 | 10 | ≡ 1.1111111111111E-19 |
moments | attoseconds |
---|---|
1 | ≡ 9.0 × 1019 |
1.1111111111111 × 10-20 | ≡ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |