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Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound. Sonoluminescence was first discovered in 1934 at the University of Cologne . It occurs when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly, emitting a burst of light.
Image credits: milwbrewsox #7. My wife and I have this ceiling fan/light in our bedroom in the house we moved into two years ago. It has a remote control for the fan and lights.
A common dual dimmer module used in stage lighting A dimmer. A dimmer is a device connected to a light fixture and used to lower the brightness of the light.By changing the voltage waveform applied to the lamp, it is possible to lower the intensity of the light output.
Downlights, often referred to as a "light kit", which add ambient light to a room and can be used to replace any ceiling-mounted lamps that were displaced by the installation of a ceiling fan Decorative lights mounted inside the motor housing—in this type of setup, the motor housing side-band often has glass or acrylic panel sections, which ...
It is typically a floor lamp but may be wall-mounted like a sconce. Further interior light fixtures include chandeliers, pendant lights, ceiling fans with lights, close-to-ceiling or flush lights, and various types of lamps [15] The portable or table lamp is probably the most common fixture, found in many homes and offices. The standard lamp ...
If a nightlight is used within a sleeping area, it is recommended to choose a dim reddish or amber light to minimize disruptive effects on sleep cycles. [ 10 ] [ 1 ] In addition, nightlights may be useful in locations other than sleeping areas, such as hallways, bathrooms, or kitchens, to allow late night trips to be made without turning on the ...
The first documented occurrence was in 1952, after the death of actress Gertrude Lawrence, though the house lights inside the theater were dimmed. [ 3 ] [ 4 ] The practice was initially very rare and was repeated only twice in the following quarter-century: for Oscar Hammerstein II in 1960 (involving the dimming of marquee lights, which became ...
Alone, she couldn’t make her kinsmen see themselves as she saw them; she couldn’t make them understand that it is they who stand accused. As the wavering sun sank completely below the waves, a streak of neon light flared across the water—an atmospheric phenomenon known as the “green flash.” “Look at that!” Monica exclaimed. “Look!