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When you press Flic, it can turn LIFX lights on or off, change the color and more. [27] LIFX lights can be controlled using the SmartThings and Logitech Harmony ecosystem. LIFX light bulbs can be controlled via Amazon echo or echo dot using Alexa voice control to turn on off or dim. LIFX can be controlled via Google Home device as of March 28 ...
The Crookes radiometer (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity.
Luxo Jr. is a semi-anthropomorphic toy desk lamp character used as the primary mascot of Pixar Animation Studios.He is the protagonist of the short film Luxo Jr. and appears on the production logo of every Pixar film, hopping into view and jumping on the capital letter "I" in "PIXAR" to flatten it ever since 1995.
A twinkle bulb is a special type of light bulb which blinks on and off for decorative effect. They are most commonly used on Christmas lights and other string lights, but can also be used for other ornamental purposes like electric jack-o-lanterns for Halloween and replica traffic lights .
The Centennial Light is an incandescent light bulb recognized as the oldest known continuously operating light bulb. It was first illuminated in 1901, and has only been turned off a few brief times since. It is located at 4550 East Avenue, Livermore, California, and is open to public viewing. [1]
The bulb's "turn on" voltage V b is higher than its "turn off" voltage V e. This property, called hysteresis , allows the bulb to function as an oscillator. Hysteresis is due to the bulb's negative resistance , the fall in voltage with increasing current after breakdown, [ 7 ] [ 14 ] which is a property of all gas-discharge lamps .
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The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo, supplying electric current to an incandescent bulb or light-emitting diode. The flashlight must be pumped continuously during use, with the flywheel turning the generator between squeezes to keep the light going continuously.