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Egg timer

 
Egg Timer

 
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Egg timer
 
 
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An egg timer is a device whose primary function is to measure a set amount of time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
. Its primary purpose was to assist in cooking an egg in water. Some later designs allowed adjustments to measure many other cookery tasks.

itionally these have been made as small hourglass
Hourglass

An hourglass, also known as a sandglass, sand timer, sand clock or egg timer, is a device for the measurement of time. It consists of two glass bulbs placed one above the other which are connected by a narrow tube....
es and the name has come to be synonymous with this form. Later mechanical
Clockwork

A clockwork is the inner workings of either a mechanical clock or a device that operates in a similar fashion. Specifically, the term refers to a device powered by the energy of a wound spring released through a series of gears....
 countdown timers were introduced which had an adjustable dial and could be applied to a wide range of timed cooking tasks.






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An egg timer is a device whose primary function is to measure a set amount of time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
. Its primary purpose was to assist in cooking an egg in water. Some later designs allowed adjustments to measure many other cookery tasks.

Technology

Traditionally these have been made as small hourglass
Hourglass

An hourglass, also known as a sandglass, sand timer, sand clock or egg timer, is a device for the measurement of time. It consists of two glass bulbs placed one above the other which are connected by a narrow tube....
es and the name has come to be synonymous with this form. Later mechanical
Clockwork

A clockwork is the inner workings of either a mechanical clock or a device that operates in a similar fashion. Specifically, the term refers to a device powered by the energy of a wound spring released through a series of gears....
 countdown timers were introduced which had an adjustable dial and could be applied to a wide range of timed cooking tasks. Most recently digital timers
Timer

A timer is a specialized type of clock. A timer can be used to control the sequence of an event or process. Whereas a stopwatch counts upwards from zero for measuring elapsed time, a timer counts down from a specified time interval, like an hourglass....
 have also been manufactured and a wide selection of software is available to perform this task on a computer or mobile phone, and the task is simple to perform on most microwaves and oven timers.

The hourglass was invented at some time during the 14th century in medieval Europe. The first reliable pictorial representation dates from AD 1338, whilst the earliest written records come from the same period and appear in lists of ships stores. From the 15th century onwards they were being used in a wide range of applications at sea, in the church , in industry and in cookery. They were the first dependable, reusable and reasonably accurate measure of time. The rate of flow of the sand is independent of the depth in the upper reservoir, and the instrument is not liable to freeze.

Egg boiling

The set time is usually three minutes, that being the approximate time it takes to cook
Cooking

Cooking is the process of preparing food by applying heat, selecting, measuring and combining of ingredients in an ordered procedure for producing safe and edible food....
 an average-sized hen's
Chicken

The chicken is a Domestication fowl. Recent evidence suggests that domestication of the chicken was under way in Vietnam over 10,000 years ago....
 egg
Egg (food)

An egg is a round or oval body laid by the female of many animals, consisting of an ovum surrounded by layers of membranes and an outer casing, which acts to nourish and protect a developing embryo and its nutrient reserves....
 in water. Hard-boiled eggs take longer to cook. The three-minute egg timer is for soft-boiled eggs
Boiled eggs

Boiled eggs are eggs cooked by immersion in boiling water with their shells unbroken. Eggs cooked in water without their shells are known as poached eggs....
. The egg changes rapidly during the first few minutes of cooking. The changes cannot be seen through the eggshell
Eggshell

An eggshell is the outer covering of a hard-shelled egg term and of some forms of eggs with soft outer coats.The generalized eggshell structure, which varies widely among species, is a protein matrix lined with mineral crystals, usually of a calcium compound such as calcium carbonate....
. Therefore timing is important.