Well, they used to make a light meter that was used by photographers back in the day to take a meter reading so they could adjust the settings on the camera. Most of the ones I saw and owned back in the day did not use batteries. They were handheld and had a window usually made of plastic and a meter.
Now-a-days everything is computed for you with the use of computer chips that do all the legwork. You can still buy cameras that you can set the aperture, speed, etc. and bypass the chips so that you have more control over your picture. The problem today is that we rely on electronics so much that one instance of electromagnetic shock could well knock us into the dark ages in a matter of hours. It's good to know the old ways because one day you may find yourself wishing you knew how to keep food cold without a fridge or light a fire with flint and steel......
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.
discriminant validity
A spring scale measures weight.
dewpoint apparatus
A ruler or measuring tape
A pyranometer is the instrument used for measuring the intensity of sunlight. It measures the total solar radiation flux density in watts per square meter.
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 creep meter
A ruler
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Rulers...
a franglais. :)
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