Inches per hour (iph) might seem like a peculiar unit of speed, but it plays a critical role in specific fields such as meteorology and engineering. This unit is often employed to measure precipitation rates, as it provides a precise gauge for predicting flooding events and soil absorption rates. By understanding precipitation in inches per hour, meteorologists can issue timely warnings and help communities prepare for extreme weather conditions.
Beyond weather, inches per hour can also be significant in manufacturing. For instance, when a machine needs to move with precision while applying adhesives or paints, the speed may be calibrated in iph to ensure accurate application and quality control. It’s a reminder of how even seemingly simple units have complex and vital applications across various industries.
The knot, a unit of speed equal to one nautical mile per hour, has its origins in the age of sail. Mariners used a device known as the “common log” to measure a ship’s speed. This involved a wooden log attached to a rope with knots tied at uniform intervals. By counting the knots that passed through a sailor’s hands over a set period, they could determine the ship’s speed. Today, knots remain an essential measure in aviation and maritime contexts, underscoring how deeply it is embedded in navigation traditions.
Interestingly, the nautical mile, corresponding to one minute of latitude, is roughly 1.1508 miles. This makes the knot not only a unique unit for speed but also a reminder of the Earth’s curvature and ancient navigation skills.
| Inches per hour | Knots |
|---|---|
0
in/h
|
0
knot
|
100
in/h
|
0.00137125
knot
|
200
in/h
|
0.00274249
knot
|
300
in/h
|
0.00411374
knot
|
400
in/h
|
0.00548498
knot
|
500
in/h
|
0.00685623
knot
|
600
in/h
|
0.00822747
knot
|
700
in/h
|
0.00959872
knot
|
800
in/h
|
0.01097
knot
|
900
in/h
|
0.0123412
knot
|
1000
in/h
|
0.0137125
knot
|
1100
in/h
|
0.0150837
knot
|
1200
in/h
|
0.0164549
knot
|
1300
in/h
|
0.0178262
knot
|
1400
in/h
|
0.0191974
knot
|
1500
in/h
|
0.0205687
knot
|
1600
in/h
|
0.0219399
knot
|
1700
in/h
|
0.0233112
knot
|
1800
in/h
|
0.0246824
knot
|
1900
in/h
|
0.0260537
knot
|
2000
in/h
|
0.0274249
knot
|
2100
in/h
|
0.0287961
knot
|
2200
in/h
|
0.0301674
knot
|
2300
in/h
|
0.0315386
knot
|
2400
in/h
|
0.0329099
knot
|
2500
in/h
|
0.0342811
knot
|
2600
in/h
|
0.0356524
knot
|
2700
in/h
|
0.0370236
knot
|
2800
in/h
|
0.0383949
knot
|
2900
in/h
|
0.0397661
knot
|
3000
in/h
|
0.0411374
knot
|
3100
in/h
|
0.0425086
knot
|
3200
in/h
|
0.0438798
knot
|
3300
in/h
|
0.0452511
knot
|
3400
in/h
|
0.0466223
knot
|
3500
in/h
|
0.0479936
knot
|
3600
in/h
|
0.0493648
knot
|
3700
in/h
|
0.0507361
knot
|
3800
in/h
|
0.0521073
knot
|
3900
in/h
|
0.0534786
knot
|
4000
in/h
|
0.0548498
knot
|
4100
in/h
|
0.056221
knot
|
4200
in/h
|
0.0575923
knot
|
4300
in/h
|
0.0589635
knot
|
4400
in/h
|
0.0603348
knot
|
4500
in/h
|
0.061706
knot
|
4600
in/h
|
0.0630773
knot
|
4700
in/h
|
0.0644485
knot
|
4800
in/h
|
0.0658198
knot
|
4900
in/h
|
0.067191
knot
|
5000
in/h
|
0.0685623
knot
|
5100
in/h
|
0.0699335
knot
|
5200
in/h
|
0.0713047
knot
|
5300
in/h
|
0.072676
knot
|
5400
in/h
|
0.0740472
knot
|
5500
in/h
|
0.0754185
knot
|
5600
in/h
|
0.0767897
knot
|
5700
in/h
|
0.078161
knot
|
5800
in/h
|
0.0795322
knot
|
5900
in/h
|
0.0809035
knot
|
6000
in/h
|
0.0822747
knot
|
6100
in/h
|
0.0836459
knot
|
6200
in/h
|
0.0850172
knot
|
6300
in/h
|
0.0863884
knot
|
6400
in/h
|
0.0877597
knot
|
6500
in/h
|
0.0891309
knot
|
6600
in/h
|
0.0905022
knot
|
6700
in/h
|
0.0918734
knot
|
6800
in/h
|
0.0932447
knot
|
6900
in/h
|
0.0946159
knot
|
7000
in/h
|
0.0959872
knot
|
7100
in/h
|
0.0973584
knot
|
7200
in/h
|
0.0987296
knot
|
7300
in/h
|
0.100101
knot
|
7400
in/h
|
0.101472
knot
|
7500
in/h
|
0.102843
knot
|
7600
in/h
|
0.104215
knot
|
7700
in/h
|
0.105586
knot
|
7800
in/h
|
0.106957
knot
|
7900
in/h
|
0.108328
knot
|
8000
in/h
|
0.1097
knot
|
8100
in/h
|
0.111071
knot
|
8200
in/h
|
0.112442
knot
|
8300
in/h
|
0.113813
knot
|
8400
in/h
|
0.115185
knot
|
8500
in/h
|
0.116556
knot
|
8600
in/h
|
0.117927
knot
|
8700
in/h
|
0.119298
knot
|
8800
in/h
|
0.12067
knot
|
8900
in/h
|
0.122041
knot
|
9000
in/h
|
0.123412
knot
|
9100
in/h
|
0.124783
knot
|
9200
in/h
|
0.126155
knot
|
9300
in/h
|
0.127526
knot
|
9400
in/h
|
0.128897
knot
|
9500
in/h
|
0.130268
knot
|
9600
in/h
|
0.13164
knot
|
9700
in/h
|
0.133011
knot
|
9800
in/h
|
0.134382
knot
|
9900
in/h
|
0.135753
knot
|
10000
in/h
|
0.137125
knot
|
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