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Betavolt claims it to be the first such miniaturised device ever developed. [14] It gains its energy from a sheet of nickel-63 located in a module the size of a very small coin. [12] [14] The isotope decays into stable, non-radioactive Cu-63, which pose no additional environmental threat.
Betacel is considered to be the first commercially successful betavoltaic battery. [1] [2] [3] It was developed in the early 1970s by Larry C. Olsen at the American corporation McDonnell Douglas, using the radioisotope Promethium-147 as the beta-electron source coupled to silicon semiconductor cells.
Water meter in Belo Horizonte. Displacement meters are commonly referred to as Positive Displacement, or "PD" meters. Two common types are oscillating piston meters and nutating disk meters. Either method relies on the water to physically displace the moving measuring element in direct proportion to the amount of water that passes through the ...
Diamond battery is the name of a nuclear battery concept proposed by the University of Bristol Cabot Institute during its annual lecture [1] held on 25 November 2016 at the Wills Memorial Building.
The Chinese startup Betavolt claimed in January 2024 to have a miniature device in the pilot testing stage. [13] It is allegedly generating 100 microwatts of power and a voltage of 3V and has a lifetime of 50 years without any need for charging or maintenance. [13] Betavolt claims it to be the first such miniaturised device ever developed. [13]
The term smart meter often refers to an electricity meter, but it also may mean a device measuring natural gas, water or district heating consumption. [1] [2] More generally, a smart meter is an electronic device that records information such as consumption of electric energy, voltage levels, current, and power factor.
Mason developed experimental methods and results that indicate the first reaction of alkali metals and water was coulombic (that is, electrical charge forces) in nature which shatters and drives the metal in an extremely pure state into the water, causing both further coulombic and water dissociation.
Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.