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Orrefors (Swedish pronunciation: [ɔrɛˈfɔʂː]) [2] is a locality situated in southern Sweden and part of Nybro Municipality, Kalmar County, with 719 inhabitants in 2010. [1] The township belongs to Hälleberga parish and is primarily famous for its glassworks with the same name.
Orrefors glassworks was founded in 1898 on the site of an older iron works. Up until 1913, the company produced mainly window glass and bottles. When Consul Johan Ekman bought the factory in 1913, Orrefors started to produce drinking glasses, vases and other house-ware items.
These keep time by counting the oscillations of a calibrated tuning fork with a specific frequency. These were only made in battery-powered form. Battery-powered clocks have been made using the schemes above with the obvious exception of a synchronous movement. All battery-powered clocks have been largely replaced by the lower cost quartz movement.
The first Metamec model was a mains-powered mantle clock numbered "701" (approx. 1947). All clocks produced by Metamec were produced to a high standard, and the factory expanded with the purchase of new machines to allow them to create their own movements, rather than import the movements from other clock companies.
The National School of Glass in Orrefors (Swedish: Riksglasskolan) is an educational center focused on glass arts, design and entrepreneurship in the field of It was located next to the Orrefors glassworks in the Orrefors with the same name, at the center of what is known as the Kingdom of Crystal in Småland in Southern Sweden .
The next 3 decades saw the development of quartz clocks as precision time standards in laboratory settings; the bulky delicate counting electronics, built with vacuum tubes, limited their use elsewhere. In 1932 a quartz clock was able to measure tiny variations in the rotation rate of the Earth over periods as short as a few weeks. [39]
A flip clock (also known as a "flap clock") is an electromechanical, digital time keeping device with the time indicated by numbers that are sequentially revealed by a split-flap display. The study, collection and repair of flip clocks is termed horopalettology (from horology – the study and measurement of time and palette – and the Italian ...
The electric clock was patented in 1840, and electronic clocks were introduced in the 20th century, becoming widespread with the development of small battery-powered semiconductor devices. The timekeeping element in every modern clock is a harmonic oscillator , a physical object ( resonator ) that vibrates or oscillates at a particular ...