The temperature measured by a thermometer with its bulb covered by a wetted wick, showing the effect on the measured temperature of moisture in still air;  wet- and dry-bulb temperatures can be correlated on a psychrometric chart to determine relative humidity.

The season of the monsoon in the tropics.

A measure used to indicate the rate of heat loss from skin when exposed to  air (see also Heat Index).

The use of wind turbines to generate electricity. Also known as Wind Energy.

This is the coldest part of the year, and begins at the Winter Solstice (December 21st in the Northern Hemisphere, and June 21st in the Southern Hemisphere). Tropical climates do not strictly have a Winter, but have Dry and Wet Seasons.

Dimensioned, graphical information used to price, fabricate, assemble, install or construct a project.