Convert calorie (th)/second to femtowatt
Please provide values below to convert calorie (th)/second [cal(th)/s] to femtowatt [fW], or Convert femtowatt to calorie (th)/second.
How to Convert Calorie (Th)/second to Femtowatt
1 cal(th)/s = 4.184e+18 fW
Example: convert 15 cal(th)/s to fW:
15 cal(th)/s = 15 × 4.184e+18 fW = 6.276e+19 fW
Calorie (Th)/second to Femtowatt Conversion Table
| calorie (th)/second | femtowatt |
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Calorie (Th)/second
Calorie (th)/second (cal(th)/s) is a unit of power representing the rate at which thermal calories are transferred or converted per second.
History/Origin
The calorie (th), or thermochemical calorie, was historically used to quantify energy in thermodynamics and nutrition. Its use in power measurement, such as cal(th)/s, emerged in scientific contexts to express thermal energy transfer rates before the adoption of the watt as the standard SI unit.
Current Use
Today, cal(th)/s is rarely used in scientific practice, having been largely replaced by watts (W). It may still appear in specialized fields or historical references related to thermal energy transfer rates.
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.