your Brain
planimeter
http://en.wikipedia.org/wiki/Planimeter
A sextant.
by turds
Miles measures distance. Square miles measures area. Therefore, you can not compare the two. It is like comparing feet and cups.
The area of square is : 36.0
There is not an instrument designed to measure the volume of a rectangular box. You would use a ruler or tape measure or similar to measure its linear dimensions and a brain to multiply them together.
thermometer
Try a tape measure and a calculator to measure surface area.
A rain gauge is a weather instrument that measures precipitation in inches, typically used to measure rainfall.
A seismograph is an instrument used to measure movement of earthquake. It measures the seismic waves of that area.
This instrument is a balance.
An instrument that measures heat and cold is called a thermometer.
A calorimeter measures heat. In contrast, a thermometer measures temperature.A thermometer bolometer - an instrument that measures heat radiation; extremely sensitive calorimeter - a measuring instrument that determines quantities of heatHeat is measured with a ThermometerThermometerThermometer or calorimeterThermometerthermometerHeat is measured with a thermometer.
An anemometer is the instrument that measures wind direction using a wind vane.
A thermometer measures molecular energy.
a calender
ruler
An aeroplane