Meters Per Hour to Millimeters Per Second
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1 meter per hour (m/h) = 0.277777778 millimeter per second (mm/s). Meter Per Hour (m/h) is a unit of Speed used in Metric system. Millimeter Per Second (mm/s) is a unit of Speed used in Metric system.

Meters Per Hour

Definition of Meters Per Hour

Meters per hour (m/h) is a unit of speed that measures how fast something is moving in terms of meters per unit of time. It is a metric unit that is derived from the base unit of length, the meter, and the base unit of time, the hour. It is rarely used however, as the units of meters per second and kilometers per hour are considered sufficient for most situations.

One meter per hour is equal to 0.00027777777777778 meters per second, or 0.001 kilometers per hour. It can also be converted to other units of speed, such as feet per second, miles per hour, or knots, by using appropriate conversion factors.

How to Convert Meters Per Hour

To convert meters per hour to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert meters per hour to feet per second, we need to multiply by 0.0009113444153, since there are 0.0009113444153 feet in one meter. To convert meters per hour to kilometers per hour, we need to multiply by 0.001, since there are 0.001 kilometers in one meter.

Here are some examples of how to convert meters per hour to other units of length in the US Standard system and the SI system:

• To convert 10 m/h to feet per second (fps), we multiply by 0.0009113444153: 10 m/h x 0.0009113444153 = 0.009113444153 fps
• To convert 20 m/h to miles per hour (mph), we multiply by 0.0006213711922, since there are 0.0006213711922 miles in one meter: 20 m/h x 0.0006213711922 = 0.012427423844 mph
• To convert 30 m/h to knots (kn), we multiply by 0.0005399568035, since there are 0.0005399568035 nautical miles in one meter: 30 m/h x 0.0005399568035 = 0.016198704105 kn
• To convert 40 m/h to meters per second (m/s), we divide by 3600, since there are 3600 seconds in one hour: 40 m/h / 3600 = 0.011111111111 m/s
• To convert 50 m/h to meters per minute (m/min), we divide by 60, since there are 60 minutes in one hour: 50 m/h / 60 = 0.833333333333 m/min
• To convert 60 m/h to centimeters per second (cm/s), we multiply by 100, since there are 100 centimeters in one meter, and divide by 3600: 60 m/h x 100 / 3600 = 1.666666666667 cm/s

Where Meters Per Hour Are Used

Meters per hour are mainly used for measuring very slow speeds or velocities of objects or phenomena that move in terms of meters per unit of time. They are often used in scientific fields such as geology, biology, astronomy, and physics, where the speed or velocity of an object or phenomenon is very small compared to the usual units of speed.

For example, a glacier may have a speed of a few meters per hour, which means that it moves a few meters in one hour. A snail may have a speed of up to 47 meters per hour, which means that it can travel up to 47 meters in one hour. A planet may have an orbital velocity of thousands of meters per hour, which means that it covers thousands of meters along its orbit in one hour.

Meters per hour are also used in some other fields where the speed or velocity of an object or phenomenon is measured in terms of meters per unit of time.

History of Meters Per Hour

The origin of meters per hour as a unit of speed can be traced back to the development of the metric system and the meter as a unit of length in the late eighteenth century. The meter was defined as one ten-millionth of the distance from the equator to the North Pole along a meridian through Paris.

The term meter first appeared in English in 1797, but it was not until later in the early nineteenth century that the use of meters per hour became more common; before that, other units such as feet per hour or leagues per hour were preferred for expressing speed.

Meters per hour have been used ever since as a standard unit of speed for measuring very slow speeds or velocities of objects or phenomena that move in terms of meters per unit of time. They have also been adopted by some international organizations and conventions, such as the International System of Units and the International Astronomical Union.

Example Conversions of Meters Per Hour to Other Units

Here are some examples of how to convert meters per hour to other units of speed, using the conversion factors given above:

• To convert 100 m/h to feet per second, we multiply by 0.0009113444153: 100 m/h x 0.0009113444153 = 0.09113444153 fps
• To convert 200 m/h to miles per hour, we multiply by 0.0006213711922: 200 m/h x 0.0006213711922 = 0.12427423884 mph
• To convert 300 m/h to knots, we multiply by 0.0005399568035: 300 m/h x 0.0005399568035 = 0.16198704105 kn
• To convert 400 m/h to meters per second, we divide by 3600: 400 m/h / 3600 = 0.11111111111 m/s
• To convert 500 m/h to meters per minute, we divide by 60: 500 m/h / 60 = 8.33333333333 m/min
• To convert 600 m/h to centimeters per second, we multiply by 100 and divide by 3600: 600 m/h x 100 / 3600 = 16.66666666667 cm/s
• To convert 700 m/h to millimeters per minute, we multiply by 1000, since there are 1000 millimeters in one meter, and divide by 60: 700 m/h x 1000 / 60 = 11666.666666667 mm/min

How to convert millimeters per second

Millimeters per second can be converted to other units of speed or velocity by using simple conversion factors. Here are some common units and their conversion factors:

• Meters per second (m/s): To convert from mm/s to m/s, divide by 1000. To convert from m/s to mm/s, multiply by 1000. For example, 1 mm/s is equal to 0.001 m/s, and 10 m/s is equal to 10000 mm/s.
• Kilometers per hour (km/h): To convert from mm/s to km/h, multiply by 0.0036. To convert from km/h to mm/s, divide by 0.0036. For example, 1 mm/s is equal to 0.0036 km/h, and 50 km/h is equal to 13888.89 mm/s.
• Miles per hour (mph): To convert from mm/s to mph, multiply by 0.00223694. To convert from mph to mm/s, divide by 0.00223694. For example, 1 mm/s is equal to 0.00223694 mph, and 30 mph is equal to 13411.2 mm/s.
• Knots (kn): To convert from mm/s to kn, multiply by 0.00194384. To convert from kn to mm/s, divide by 0.00194384. For example, 1 mm/s is equal to 0.00194384 kn, and 15 kn is equal to 7716.12 mm/s.
• Feet per second (ft/s): To convert from mm/s to ft/s, multiply by 0.00328084. To convert from ft/s to mm/s, divide by 0.00328084. For example, 1 mm/s is equal to 0.00328084 ft/s, and 40 ft/s is equal to 12192 mm/s.
• Inches per second (in/s): To convert from mm/s to in/s, multiply by 0.0393701. To convert from in/s to mm/s, divide by 0.0393701. For example, 1 mm/s is equal to 0.0393701 in/s, and 20 in/s is equal to 508 mm/s.

Where millimeters per second are used

Millimeters per second are mainly used in microbiology and nanotechnology to measure the speed or velocity of microscopic organisms and processes.

For example, the average speed of a bacterium such as Escherichia coli is about 10-20 micrometers per second, which is equivalent to 0.01-0.02 mm/s.

The average speed of a virus such as influenza A virus is about 1 micrometer per second, which is equivalent to 0.001 mm/s.

The average speed of a nanorobot such as a DNA origami walker is about 4 nanometers per second, which is equivalent to 0.000004 mm/s.

Definition of millimeters per second

According to the SI definition, one millimeter per second is the speed of a body that covers a distance of one millimeter in a time of one second.

Mathematically, it can be expressed as:

v = s / t

where v is the speed or velocity in millimeters per second, s is the distance traveled in millimeters, and t is the time taken in seconds.

History of millimeters per second

The concept of speed or velocity has been studied since ancient times by philosophers and scientists such as Aristotle, Galileo, Newton, etc.

The millimeter was originally derived from the meter in the late 18th century as one thousandth of a meter.

The second was originally defined in terms of the Earth’s rotation as one eighty-six thousand four hundredth of a mean solar day.

The combination of these two units resulted in the millimeter per second as a unit of speed or velocity.

The millimeter per second was officially adopted as part of the SI system in 1960.

Example conversions of millimeters per second to other units

Here are some examples of converting millimeters per second to other units of speed or velocity:

• 1 mm/s = 0.001 m/s = 0.0036 km/h = 0.00223694 mph = 0.00194384 kn = 0.00328084 ft/s = 0.0393701 in/s
• 2 mm/s = 0.002 m/s = 0.0072 km/h = 0.00447388 mph = 0.00388768 kn = 0.00656168 ft/s = 0.0787402 in/s
• 5 mm/s = 0.005 m/s = 0.018 km/h = 0.0111847 mph = 0.0097192 kn = 0.0164042 ft/s = 0.196851 in/s
• 10 mm/s = 0.01 m/s = 0.036 km/h = 0.0223694 mph = 0.0194384 kn = 0.0328084 ft/s = 0.393701 in/s
• 20 mm/s = 0.02 m/s = 0.072 km/h = 0.0447388 mph = 0.0388768 kn = 0.0656168 ft/s = 0.787402 in/s
• 50 mm/s = 0.05 m/s = 0.18 km/h = 0.111847 mph = 0.097192 kn = 0.164042 ft/s = 1.9685 in/s
• 100 mm/s = 0.1 m/s = 0.36 km/h = 0.223694 mph = 0.194384 kn = 0.328084 ft/s = 3.93701 in/s