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Revamp your sleep space. Create a cave-like environment to obtain optimal sleep. Sleep experts recommend a cool temperature of about 65*F, pitch darkness (blackout curtains can help), and a sound ...
Water clocks or clepsydra measure a gain or loss of water by using drops of uniform size and frequency. The Persian fenjaan made use of the constant time it took for the sinking of a floating bowl with a hole in its underside. It is unknown when or where the oil-lamp clock was first introduced. This clock was mainly used during the mid-18th ...
A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.
Former Lava Lamp factory, at 1650 Irving Park Road, Chicago. British entrepreneur Edward Craven Walker had the idea for the lava lamp in 1963 after watching a homemade egg timer, made from a cocktail shaker filled with liquids, as it bubbled on a stovetop in a pub. [8] This precursor was designed and patented GB patent 703924 by Donald Dunnet. [9]
A hands-free faucet in Japan. An automatic faucet or tap (also hands-free faucet, touchless faucet, electronic faucet, motion-sensing faucet, sensor faucet, or infrared faucet) is a faucet equipped with a proximity sensor and mechanism that opens its valve to allow water to flow in response to the presence of a user's hands in close proximity.
Water clock (representing a clock at the royal court in Paris, c.1250) The first innovations to improve on the accuracy of the hourglass and the water clock occurred in the 10th century, when attempts were made to slow their rate of flow using friction or the force of gravity. [ 78 ]