ft [TNT](femtotonne)

In the field of energy, ft [TNT] (femtotonne) refers to a unit used to quantify the amount of energy released from explosives. It is based on the energy release of one tonne of TNT (trinitrotoluene), which is a standard measure of the explosive power of a material.

In this context, "femto" is a prefix that represents a factor of 10^(-15) or 0.000000000000001. So, a femtotonne of TNT represents an energy release 10^(-15) times smaller than the energy released by one tonne of TNT.

The ft [TNT] (femtotonne) unit is useful for discussing very small energy releases or explosions, such as those caused by micro-scale experiments or miniature energy-producing technologies.

µW h(microwatt hour)

A microwatt hour (µWh) is a unit of energy used to express small amounts of energy consumption or generation, especially in the context of low-power electronic devices or systems. It is a derived unit from the International System of Units (SI) and falls under the category of energy, work, or amount of heat.

The microwatt hour (µWh) represents one millionth (10^-6) of a watt-hour (Wh), which is a widely recognized energy unit. A watt-hour is the amount of energy consumed or generated by a one-watt device operating for one hour. Therefore, one microwatt hour is equivalent to a one-microwatt (µW) device operating for one hour or using one millionth of a watt's worth of energy for one hour.

This unit of measurement is often used in various applications such as analyzing the energy consumption of electronic components like integrated circuits, sensors, and other low-power devices that operate in the microwatt range.