Illustration of steel square.

Steel Square

Illustration of steel square.

Illustration of steel square with hypotenuse drawn.

Steel Square

Illustration of steel square with hypotenuse drawn.

Illustration of steel square with bevel/slant.

Steel Square

Illustration of steel square with bevel/slant.

This tailors measure is a measuring device for cloth cutters. A tailor is a person who makes, repairs, or alters clothing professionally.

Gradually Marked Tailors Measure

This tailors measure is a measuring device for cloth cutters. A tailor is a person who makes, repairs,…

"An instrument for the measurement of horizontal angles, consisting essentially of a telescope mounted so as to move on a pivot both horizontal and verticaly." — Williams, 1889

Theodolite

"An instrument for the measurement of horizontal angles, consisting essentially of a telescope mounted…

An instrument for measuring temperature, founded on the principal that changes of temperature in bodies are accompanied by proportional changes in their volume of dimensions.

Thermometer

An instrument for measuring temperature, founded on the principal that changes of temperature in bodies…

A long stub left in pruning. The wound cannot heal. The tape shows how far the trunk is hollow. The tree will soon blow over.

Stub of a limb of a tree

A long stub left in pruning. The wound cannot heal. The tape shows how far the trunk is hollow. The…

A volt-meter in a circuit.

Volt meter

A volt-meter in a circuit.

An illustration of a set containers measuring volume using liters.

Volume Measurements

An illustration of a set containers measuring volume using liters.

An illustration showing that 1 milliliter of water weighs the same as a 1 gram.

Weight Measures

An illustration showing that 1 milliliter of water weighs the same as a 1 gram.

Illustration comparing the fundamental units of measure ounces to grams and pounds to kilograms.

Comparison Of Units Of Weight

Illustration comparing the fundamental units of measure ounces to grams and pounds to kilograms.