hide | 1 hide | 2 hide | 3 hide | 4 hide | 5 hide | 6 hide | 7 hide | 8 hide | 9 hide | 10 hide | 11 hide | 12 hide | 13 hide | 14 hide | 15 hide | 16 hide | 17 hide | 18 hide | 19 hide | 20 hide | 21 hide | 22 hide | 23 hide | 24 hide | 25 hide | 26 hide | 27 hide | 28 hide | 29 hide | 30 hide | 31 hide | 32 hide | 33 hide | 34 hide | 35 hide | 36 hide | 37 hide | 38 hide | 39 hide | 40 hide | 41 hide | 42 hide | 43 hide | 44 hide | 45 hide | 46 hide | 47 hide | 48 hide | 49 hide | 50 hide | 51 hide | 52 hide | 53 hide | 54 hide | 55 hide | 56 hide | 57 hide | 58 hide | 59 hide | 60 hide | 61 hide | 62 hide | 63 hide | 64 hide | 65 hide | 66 hide | 67 hide | 68 hide | 69 hide | 70 hide | 71 hide | 72 hide | 73 hide | 74 hide | 75 hide | 76 hide | 77 hide | 78 hide | 79 hide | 80 hide | 81 hide | 82 hide | 83 hide | 84 hide | 85 hide | 86 hide | 87 hide | 88 hide | 89 hide | 90 hide | 91 hide | 92 hide | 93 hide | 94 hide | 95 hide | 96 hide | 97 hide | 98 hide | 99 hide | 100 hide |
barn | 5.0 × 1033 b | 1.0 × 1034 b | 1.5 × 1034 b | 2.0 × 1034 b | 2.5 × 1034 b | 3.0 × 1034 b | 3.5 × 1034 b | 4.0 × 1034 b | 4.5 × 1034 b | 5.0 × 1034 b | 5.5 × 1034 b | 6.0 × 1034 b | 6.5 × 1034 b | 7.0 × 1034 b | 7.5 × 1034 b | 8.0 × 1034 b | 8.5 × 1034 b | 9.0 × 1034 b | 9.5 × 1034 b | 1.0 × 1035 b | 1.05 × 1035 b | 1.1 × 1035 b | 1.15 × 1035 b | 1.2 × 1035 b | 1.25 × 1035 b | 1.3 × 1035 b | 1.35 × 1035 b | 1.4 × 1035 b | 1.45 × 1035 b | 1.5 × 1035 b | 1.55 × 1035 b | 1.6 × 1035 b | 1.65 × 1035 b | 1.7 × 1035 b | 1.75 × 1035 b | 1.8 × 1035 b | 1.85 × 1035 b | 1.9 × 1035 b | 1.95 × 1035 b | 2.0 × 1035 b | 2.05 × 1035 b | 2.1 × 1035 b | 2.15 × 1035 b | 2.2 × 1035 b | 2.25 × 1035 b | 2.3 × 1035 b | 2.35 × 1035 b | 2.4 × 1035 b | 2.45 × 1035 b | 2.5 × 1035 b | 2.55 × 1035 b | 2.6 × 1035 b | 2.65 × 1035 b | 2.7 × 1035 b | 2.75 × 1035 b | 2.8 × 1035 b | 2.85 × 1035 b | 2.9 × 1035 b | 2.95 × 1035 b | 3.0 × 1035 b | 3.05 × 1035 b | 3.1 × 1035 b | 3.15 × 1035 b | 3.2 × 1035 b | 3.25 × 1035 b | 3.3 × 1035 b | 3.35 × 1035 b | 3.4 × 1035 b | 3.45 × 1035 b | 3.5 × 1035 b | 3.55 × 1035 b | 3.6 × 1035 b | 3.65 × 1035 b | 3.7 × 1035 b | 3.75 × 1035 b | 3.8 × 1035 b | 3.85 × 1035 b | 3.9 × 1035 b | 3.95 × 1035 b | 4.0 × 1035 b | 4.05 × 1035 b | 4.1 × 1035 b | 4.15 × 1035 b | 4.2 × 1035 b | 4.25 × 1035 b | 4.3 × 1035 b | 4.35 × 1035 b | 4.4 × 1035 b | 4.45 × 1035 b | 4.5 × 1035 b | 4.55 × 1035 b | 4.6 × 1035 b | 4.65 × 1035 b | 4.7 × 1035 b | 4.75 × 1035 b | 4.8 × 1035 b | 4.85 × 1035 b | 4.9 × 1035 b | 4.95 × 1035 b | 5.0 × 1035 b |
The hide was an English unit of land measurement originally intended to represent the amount of land sufficient to support a household.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hide | ≈ 120 ac (variable) | ≈ 5×105 m2 | Other |
hides | barns | hides | barns |
---|---|---|---|
1 | = 5.0E+33 | 6 | = 3.0E+34 |
2 | = 1.0E+34 | 7 | = 3.5E+34 |
3 | = 1.5E+34 | 8 | = 4.0E+34 |
4 | = 2.0E+34 | 9 | = 4.5E+34 |
5 | = 2.5E+34 | 10 | = 5.0E+34 |
A barn (symbol: b) is a unit of area equal to 10−28 m2 (100 fm2). Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is also used in all fields of high-energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
barn | b | ≡ 10−28 m2 | ≡ 10−28 m2 | Nuclear Physics |
barns | hides | barns | hides |
---|---|---|---|
1 | = 2.0E-34 | 6 | = 1.2E-33 |
2 | = 4.0E-34 | 7 | = 1.4E-33 |
3 | = 6.0E-34 | 8 | = 1.6E-33 |
4 | = 8.0E-34 | 9 | = 1.8E-33 |
5 | = 1.0E-33 | 10 | = 2.0E-33 |
hides | barns |
---|---|
1 | = 5.0 × 1033 |
2.0 × 10-34 | = 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 …) |