Measurement Collection (page 7)

C17 Sand Glass
The SAND GLASS, also known as CLEPSAMMIA, measures time by how long sand takes to filter from the upper bulb into the lower; different apertures measure different periods

Egyptian Clepsydra
The CLEPSYDRA, used throughout the Near/Middle East in ancient times, measures time by how long it takes the upper bowl to fill the lower one

Greek Hemicycle Dial
The GREEK HEMICYCLE DIAL is an early form of sundial, using the movement of a shadow to measure the passage of time

Roman Polos
The ancient Roman POLOS, or HELIOTROPION, is a staff standing in a basin, time being measured by the movement of the shadow from one point to another

Shadow Timekeeper
The ancient Greeks are said to have used shadows to measure time, the length of a persons shadow, varying at different times of day, giving a rough indication as to the time

Candle Timer
King Alfred is credited with the invention use of CANDLES as timekeepers, time being measured by how long it takes for the candle to burn from one mark to the next

Wick Timekeeper
WICK TIMEKEEPER of the ancient Chinese and Japanese : time is measured by how long it takes for the smouldering wick to burn from one knot to the next

Indian Clepsydra
An ancient clepsydra from Southern India : the bowl has a small hole in it, and gradually fills, at which point the watching boy strikes a gong

Adding Machines / Fortune
An array of adding machines

Metric Series - Length
Length - a metre

Metric Series - Contents
Contents - a litre

Metric Series - Surface
Surface - a square metre

Metric Series - Weight
Weight - a gram

Metric Series - Money
Money - a franc

Metric Series - Volume
Volume - a cubic metre

Watch & 2nd Pendulum
The mechanisms of the watch and second pendulum

Chinese Clepsydra / 14Thc
A Chinese clepsydra or water clock

Various Clock Faces
Lots of clock faces

German Watchmakers
A man and a woman, watchmakers or clockmakers, Black Forest, Germany

Table Alarm Clock C17
A table alarum clock from central Europe, designed to strike a light at the appointed time

Act of Parliament Clock
When Pitt taxed clocks, Act of Parliament clocks were made with large faces for the convenience of persons who couldn t afford one of their own

Globe Clock C17
Globe or falling-ball clock by Jacob Beham of Vienna, now in the British Museum, London

German Alarm Clock
German alarm clock, now in the Victoria & Albert museum

Newsam Clock 1590
Clock made by Bartholomew Newsam, clockmaker to queen Elizabeth I

German Ship Clock
Ship clock made at Augsburg for the emperor Rudolph

Clock at Venice
Clock in the piazza San Marco, Venice

Wimborne Clock
The astronomical clock at Wimborne Minster, Dorset

Hour Glasses
17th century Hour-Glasses in Greenwich parish church

Water Clock Egypt
Egyptian water clock : the passage of time was measured by water gradually emptying from the bowl through a hole

Watch Factory / Iln / 1884
WATCH AND CLOCK MANUFACTURE A watch and clock factory workshop in the rear of Bensons showrooms

Standard Metre
After the introduction of the metric system during the French revolution, this STANDARD METRE was placed at the Petit-Luxembourg, Paris

Metric System Introduced
Usage des nouveaux poids et mesures - the Metric System is introduced in France by the Revolutionary government

Ancient Mexican Calendar
Ancient Mexican calendar

AMPERE (1775 - 1836)
ANDRE-MARIE AMPERE French scientist, notable for his work in magnetism and electricity. The unit ampere as a measurement of current bears his name

Exact Time, France
The unification and distribution of time using pneumatic chronometers, France

Candle Clock
CANDLE CLOCK

Euclid / Wilcox / 1732
EUCLID Mathematician of Alexandria

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