Convert calorie (IT)/second to femtowatt
Please provide values below to convert calorie (IT)/second [cal/s] to femtowatt [fW], or Convert femtowatt to calorie (IT)/second.
How to Convert Calorie (It)/second to Femtowatt
1 cal/s = 4.1868e+18 fW
Example: convert 15 cal/s to fW:
15 cal/s = 15 × 4.1868e+18 fW = 6.2802e+19 fW
Calorie (It)/second to Femtowatt Conversion Table
| calorie (IT)/second | femtowatt |
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Calorie (It)/second
Calorie per second (cal/s) is a unit of power representing the rate at which energy in calories is transferred or converted per second.
History/Origin
The calorie, originally defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius, has been used in various contexts including nutrition and thermodynamics. The use of calories per second as a power unit became common in scientific and engineering fields to quantify energy transfer rates before the adoption of the SI unit watt.
Current Use
Calorie per second is primarily used in scientific research, thermodynamics, and certain engineering applications to measure power, especially in contexts where energy transfer in calories is relevant. It is less common in everyday use, having been largely replaced by the watt (W) in SI units.
Femtowatt
A femtowatt (fW) is a unit of power equal to 10^-15 watts, representing an extremely small amount of power.
History/Origin
The femtowatt was introduced as part of the SI prefixes to measure very small quantities of power, particularly in scientific and technological contexts, gaining recognition as the need to quantify minute power levels grew.
Current Use
Femtowatts are used in fields such as quantum physics, nanotechnology, and optical measurements, where precise measurement of extremely low power levels is required.