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Shop Mark & Graham's Big Gift Event and save up to 50% off select items, 20% off clearance + free shipping Gift-giving isn't always easy. Some people just have the gift of giving, and others don't.
Ride1up Cafe Cruiser. $1,195 $1,395 Save $200. Ride1Up, a well-known company in the e-bike world, is offering multiple Earth Day deals on its bikes with most at least $100-$200 off. Shown here is ...
Droop speed control is a control mode used for AC electrical power generators, whereby the power output of a generator reduces as the line frequency increases. It is commonly used as the speed control mode of the governor of a prime mover driving a synchronous generator connected to an electrical grid. It works by controlling the rate of power ...
The 20% Project is responsible for the development of many Google services. Founders Sergey Brin and Larry Page advised that workers "spend 20% of their time working on what they think will most benefit Google". Google's email service 'Gmail' was created by the developer Paul Buchheit on his 20% time. In his project "Caribou", Buchheit used his ...
In November 2013, Alstom announced it planned to raise €1 to €2 billion through sale of some non-core assets, plus the possible sale of a stake in Alstom Transport, and cut 1,300 jobs. [48] [49] In 2014, Alstom sold its steam auxiliary components activities (air preheaters and gas-gas heaters for thermal power, other industrial heat ...
Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose.
A thermoelectric generator ( TEG ), also called a Seebeck generator, is a solid state device that converts heat (driven by temperature differences) directly into electrical energy through a phenomenon called the Seebeck effect [1] (a form of thermoelectric effect ). Thermoelectric generators function like heat engines, but are less bulky and ...
An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point , exposing the air to desiccants , using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.