The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine, developed sporadically from 1763 to 1775, was the next great step in the.. Read More..
A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages.A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure (HP) cylinder, then having given up heat and losing pressure, it exhausts directly into one or more larger volume low-pressure (LP) cylinders. Multiple-expansion engines .. Read More..
Around 1800 Richard Trevithick and, separately, Oliver Evans in 1801 introduced engines using high-pressure steam; Trevithick obtained his high-pressure engine patent in 1802.These were much more powerful for a given cylinder size than previous engines and could be made small enough for transport applications. Thereafter, technological developments and improvements in.. Read More..
A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that there is a net conversion of heat energy to mechanical work.More specifically, the Stirling engine is a closed-cycle regenerative heat engine with a permanently gaseous working fluid. Closed-cycle, in this co.. Read More..
Freezing food preserves it from the time it is prepared to the time it is eaten. Since early times, farmers, fishermen, and trappers have preserved their game and produce in unheated buildings during the winter season.When we crave fresh fruits and vegetables in the middle of winter, we can thank Clarence Birdseye for the next best thing. Clarence Birdseye invented, d.. Read More..
Although various forms of internal combustion engines were developed before the 19th century, their use was hindered until the commercial drilling and production of petroleum began in the mid-1850s. By the late 19th century, engineering advances led to their widespread adoption in a variety of applications.The French inventor, Jean-Joseph-Étienne Lenoir was born at M.. Read More..
A two-stroke, or two-cycle, engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution. This is in contrast to a "four-stroke engine", which requires four strokes of the piston to complete a power cycle. In a two-stroke engine, the end of the combustion strok.. Read More..
The Aerowagon or aeromotowagon was an experimental high-speed railcar fitted with an aircraft engine and propeller traction invented by Valerian Abakovsky, a Russian engineer from Latvia. It was originally intended to carry Soviet officials.Valerian Abakovsky was a Russian inventor who died when his invention, the high-speed Aerowagon train engine, derailed on a test .. Read More..
Water chlorination is the process of adding chlorine (Cl2) or hypochlorite to water. This method is used to kill certain bacteria and other microbes in tap water as chlorine is highly toxic. In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, jaundice, typhoid etc.Procedure:When dissolved in water, chlorine conv.. Read More..
Nuclear power is the use of nuclear reactors to release nuclear energy,and thereby generate electricity. The term includes nuclear fission, nuclear decay and nuclear fusion. The Inventors Hall of Fame states that, "Enrico Fermi and Leo Szilard discovered the first nuclear reactor in which nuclear chain reactions are initiated, controlled, and sustained at a steady ob.. Read More..
7 Up is a brand of lemon-lime flavored, non-caffeinated soft drink. The rights to the brand are held by Dr Pepper Snapple Group in the United States, and PepsiCo (or its licensees) in the rest of the world. The U.S. version of the 7 Up logo includes a red cherry between the "7" and "Up"; this red cherry has been animated and used as a mascot for the brand as Cool Spot.. Read More..
A reaction engine is an engine or motor which provides propulsion (thrust) by expelling reaction mass, in accordance with Newton's third law of motion. This law of motion is most commonly paraphrased as: "For every action force there is an equal, but opposite, reaction force".Alexandru Ciurcu was a Romanian inventor and publisher, famous for his invention with Jus.. Read More..
In May, 1886, Coca Cola was invented by Doctor John Pemberton a pharmacist from Atlanta, Georgia. John Pemberton concocted the Coca Cola formula in a three legged brass kettle in his backyard. The name was a suggestion given by John Pemberton's bookkeeper Frank Robinson.Invention of Coca-ColaIn April 1865 while serving as lieutenant colonel of the Confederate Army.. Read More..
An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorized method of propelling small watercraft. As well as providing propulsion, outboards provide steering control, as they are designed to piv.. Read More..
A carburetor is a device that blends air and fuel for an internal combustion engine. It is sometimes colloquially shortened to carb in North America or carby in Australia.To carburate is to blend the air and fuel or to equipment (an engine) with a carburetor for that purpose.Carburetors have largely been supplanted in the automotive industry by fuel injection. They ar.. Read More..
Soup is a primarily liquid food, generally served warm, that is made by combining ingredients such as meat and vegetables with stock, juice, water, or another liquid. Hot soups are additionally characterized by boiling solid ingredients in liquids in a pot until the flavors are extracted, forming a broth.HistoryJohn Thompson Dorrance invented the process of condensing.. Read More..