Facsimile Machine
In both early and modern faxes, the sending and receiving process revolves around the same basic concept: The machine scans the document. It transfers the image of that document into a signal. ... The other machine decodes the signal and reproduces the document.
Arun Thomas
Dynamo
Dynamo - a device that makes direct current electric power using electromagnetism. It is also known as a generator, however the term generator normally refers to an "alternator" which creates alternating current power
Water Frame
The water frame is a spinning frame that is powered by a water-wheel. Water frames in general have existed since ancient Egypt times. Richard Arkwright, who patented the technology in 1769, designed a model for the production of cotton thread; this was first used in 1765.
Postage Stamp
A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage, who then affix the stamp to the face or address-side of any item of mail—an envelope or other postal cover —that they wish to send.
Mauveine
Mauveine, also known as aniline purple and Perkin's mauve, was one of the first synthetic dyes. It was discovered serendipitously by William Henry Perkin in 1856 while he was attempting to create a cure for malaria. It is also among the first chemical dyes to have been mass-produced.
Rechargeable Storage battery
A rechargeable battery, storage battery, secondary cell, or accumulator is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use
Semaphore
A semaphore is simply a variable. This variable is used to solve critical section problems and to achieve process synchronization in the multi processing environment. A trivial semaphore is a plain variable that is changed (for example, incremented or decremented, or toggled) depending on programmer-defined conditions.
Syphon
Sometimes a pump is used to force higher pressure into the bottle. For portable 1 litre bottles, the head of the siphon bottle is removed for filling. ... When the sound of the gas bubbling into the water is heard, the bottle is shaken, then left to rest. Within seconds, the trigger pull will release seltzer water.
Blood Transfusion
A blood transfusion is a way of adding blood to your body after an illness or injury. If your body is missing one or more of the components that make up healthy blood, a transfusion can help supply what your body is missing. Depending on how much blood you need, a transfusion can take between 1 and 4 hours
Pneumatic Tyre
A pneumatic, or air-filled, tire is made of an airtight inner core filled with pressurized air. A tread, usually reinforced with steel belting or other materials, covers this inner core and provides the contact area with the road.
Safety Match
Safety matches are a common item in every household's kitchen drawer. They're a simple enough concept – strike the match head against the strip and voila. ... There are two types of matches: ones that are considered safe, and ones that can be ignited using any surface.
Hydraulic Crane
What is a hydraulic crane? TNT Crane & Rigging knows a hydraulic crane is a type of heavy-duty equipment used for lifting and hoisting. Unlike smaller cranes, which rely on electric or diesel-powered motors, hydraulic cranes include an internal hydraulic system that allows the crane to lift heavier loads.