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This is an accepted version of this page This is the latest accepted revision, reviewed on 25 February 2025. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...
Other cool features of this mid-priced sunset alarm clock are the variable duration of the sunrise or sunset simulations (20, 30, or 45 minutes), a light-sensitive clock display that brightens ...
A dawn simulation alarm clock. Dawn simulation is a technique that involves timing a light, often called a wake-up light, sunrise alarm clock, or natural light alarm clock, in the bedroom to come on gradually, over a period of 30 minutes to 2 hours, before awakening to simulate dawn.
In 1986, Kienzle developed the first solar watch with light conditions and a polycrystalline solar element. In the early 1990s, Kienzle developed the most water-resistant watch in the world which was resistant up to 12,000 metres. They also developed the world's first radio-controlled atomic alarm clock with an analogue alarm setting.
As a ‘smart’ alarm clock it has a 2.4 GHz WiFi connectivity for firmware and content download. Unlike traditional alarm clocks, Alarmo uses a 24 GHz mmWave presence sensor [5] to detect motion during sleep and waking up. [3] The longer the user stays in bed without moving, the louder and more intense the sound of the alarm will become.
Founded as the Utility Manufacturing Company in 1934, it produced a wide variety of products, including wall clocks, alarm clocks, electric shavers, analog cameras, and more. It sold these through a medley of brands—including Falcon, Spartus, Galter, Regal, Monarch, Spencer, among others. It was founded in 1934 by Jack Galter (1904–1993) as ...
The Zen Alarm Clock, [5] uses a series of progressive acoustic chimes to wake people gradually. [6] In 2001 the firm introduced a portable, digital version of its chiming alarm clock . [ 7 ] In 2005, the firm introduced an alarm clock and timer featuring a six-inch brass bowl- gong , called The Zen Timepiece.
The Ottoman engineer Taqi ad-Din described a weight-driven clock with a verge-and-foliot escapement, a striking train of gears, an alarm, and a representation of the Moon's phases in his book The Brightest Stars for the Construction of Mechanical Clocks (Al-Kawākib al-durriyya fī wadh' al-bankāmat al-dawriyya), written around 1565. [119]