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Bubble Light
A bubble light is a decorative device consisting of a liquid-filled vial that is heated and illuminated by an incandescent light bulb. Because of the liquid's low boiling point, 39.6°C (103.3°F), the modest heat generated by the lamp causes the liquid to boil and Liquid bubble, bubble up from the vial's base thus creating a decorative effect. Process The liquid is almost always Dichloromethane, methylene chloride, a solvent that is toxic and possibly carcinogenic. It is generally sealed in a glass vial or capsule to prevent its release; if it is broken, the area should be evacuated until the fumes have dissipated. Some early bubble lights instead used a lightweight oil or camphor (a white substance used in some moth balls) to create the low boiling point. In these older lamps, one can often see a white piece floating at the top of the vial, until the heat of the lamp dissolves it and it starts to bubble. The light from the lamp illuminates the bubbles from underneath, causing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bubble Light In Christmas Tree (6567963279)
Bubble, Bubbles or The Bubble may refer to: Common uses * Bubble (physics), a globule of one substance in another, usually gas in a liquid ** Soap bubble * Economic bubble, a situation where asset prices are much higher than underlying fundamentals Arts, entertainment and media Fictional characters * Bubble, List of Absolutely Fabulous characters#Bubble and Katy Grin, a character in ''Absolutely Fabulous'' * Bubbles, an oriole from the ''Angry Birds'' franchise * Bubble, in the video game ''Clu Clu Land'' * Bubbles (The Wire), Bubbles (''The Wire'') * Bubbles (Trailer Park Boys), Bubbles (''Trailer Park Boys'') * Bubbles, a yellow tang fish in the Finding Nemo (franchise), ''Finding Nemo'' franchise * Bubbles, in ''Jabberjaw#Characters, Jabberjaw'' * Bubbles Utonium, in ''The Powerpuff Girls'' ** Bubbles (Miyako Gotokuji), in ''Powerpuff Girls Z'' * Bubbles (The Adventures of Little Carp), Bubbles (''The Adventures of Little Carp'') * Bubbles, in ''The Adventures of Timmy the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jack-o'-lantern
A jack-o'-lantern (or jack o'lantern) is a carved lantern, most commonly made from a pumpkin or a root vegetable such as a rutabaga or turnip. Jack-o'-lanterns are associated with the Halloween holiday. Its name comes from the reported phenomenon of strange lights flickering over peat bogs, called ''will-o'-the-wisp, will-o'-the-wisps'' or ''jack-o'-lanterns''. The name is also tied to the Irish mythology, Irish legend of Stingy Jack, a drunkard who bargains with Satan and is doomed to roam the Earth with only a hollowed turnip to light his way. Jack-o'-lanterns carved from pumpkins are a yearly Halloween tradition that developed in the United States when Irish Americans, Irish immigrants brought their root vegetable carving tradition with them. It is common to see jack-o'-lanterns used as external and internal decorations prior to and on Halloween. To make a jack-o'-lantern, the top of a pumpkin or turnip is cut off to form a lid, the inside flesh is scooped out, and an image ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drinking Bird
Drinking birds, also known as insatiable birdies, dunking birds, drinky birds, water birds, dipping birds, and “Sippy Chickens” are toy heat engines that mimic the motions of a bird drinking from a water source. They are sometimes incorrectly considered examples of a perpetual motion device. Construction and materials A drinking bird consists of two glass bulbs joined by a glass tube (the bird's neck). The tube extends nearly all the way into the bottom bulb, and attaches to the top bulb but does not extend into it. The space inside the bird contains a fluid, usually colored to make the liquid more visible. The dye might fade when exposed to light, with the rate depending on the dye/color. The fluid is typically dichloromethane (DCM), also known as methylene chloride. Earlier versions contained trichlorofluoromethane. Miles V. Sullivan's 1945 patent suggested ether, alcohol, carbon tetrachloride, or chloroform. Air is removed from the apparatus during manufacture, so the spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christmas Lights
Christmas lights (also known as fairy lights, festive lights or string lights) are lights often used for decoration in celebration of Christmas, often on display throughout the Christmas season including Advent and Christmastide. The custom goes back to when Christmas trees were decorated with candles, which symbolized Christ being the light of the world. The Christmas trees were brought by Christians into their homes in early modern Germany. Christmas trees displayed publicly and illuminated with electric lights became popular in the early 20th century. By the mid-20th century, it became customary to display strings of electric lights along streets and on buildings; Christmas decorations detached from the Christmas tree itself. In the United States and Canada, it became popular to outline private homes with such Christmas lights in tract housing beginning in the 1960s. By the late 20th century, the custom had also been adopted in other nations, including outside the Western w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NOMA (company)
NOMA was a company best known for making Christmas lights. It was once the largest manufacturer of holiday lighting in the world. As of 2021, the rights to the brand in Canada and the United States are owned by Canadian Tire, which sells NOMA-branded products through its namesake stores in Canada, and through an e-commerce website in the United States. History Background Electric Christmas lights were first used in 1882, but were not commercially available until around 1901, with pre-wired sets available by 1903. By 1920 they were popular, with a range of small and large manufacturers. The lighting sets, or "outfits," were of fixed length, with only limited and difficult to use options available to use more than one string together. In 1921, Lester Haft filed a patent for a system to interconnect multiple strings. Several small companies licenses the patent from Haft's employer, C. D. Wood Electric. Morris Propp, whose company was the largest manufacturer of the Christmas l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Pump
An air pump is a pump for pushing air. Examples include a bicycle pump, pumps that are used to aerate an aquarium or a pond via an airstone; a gas compressor used to power a pneumatic tool, air horn or pipe organ; a bellows used to encourage a fire; a vacuum cleaner and a vacuum pump. All air pumps contain a part that moves (vane, piston, impeller, diaphragm etc.) which drives the flow of air. When the air gets moved, an area of low pressure gets created which fills up with more air. Pumps and compressors use very similar mechanisms, and basically perform the same action, but in different fluid regimes. At some point there is a crossover point in terminology, but here are some stereotypes: • Compressors operate on compressible fluids, typically gases. Pumps operate on fluids, typically liquids, approximated as in-compressible. • Compressors are intended to develop a very high pressure rise against a closed system; pumps are designed to develop relatively little pressure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airstone
An airstone, also called an aquarium bubbler, is a piece of aquarium furniture, traditionally a piece of limewood or porous stone, whose purpose is to gradually diffuse air into the tank, eliminating the noise and large bubbles of conventional air filtration systems, and providing other benefits to the health of the fish. "Airstone" is also a brand name stone or brick veneer used by homebuilders. Airstones are sold in a very wide variety of shapes, sizes, and levels of coarseness – from extremely rough, producing larger (though still typically unnoticeable) bubbles and letting in more oxygen – to very fine, producing minuscule bubbles. Airstones are increasingly being made from bonded glass beads and synthetic products like fiberglass. There is some controversy as to the efficiency of airstones versus the conventional powerhead system when used in uplift tubes as part of an under-gravel filter. Arguments can be made in favor of both systems, and both possess certain advantages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distilled Water
Distilled water is water that has been boiled into vapor and condensed back into liquid in a separate container. Impurities in the original water that do not boil below or near the boiling point of water remain in the original container. Thus, distilled water is a type of purified water. History Drinking water has been distilled from seawater since at least about AD 200, when the process was clearly described by Alexander of Aphrodisias. Its history predates this, as a passage in Aristotle's ''Meteorologica'' refers to the distillation of water. Captain Israel Williams of the ''Friendship'' (1797) improvised a way to distill water, which he described in his journal. Applications In chemical and biological laboratories, as well as in industry, in some appliances deionised water can be used instead of distilled water as a cheaper alternative. If exceptionally high-purity water is required, double distilled water is used. In general, non-purified water could cause or interfere wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buoyancy
Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. The pressure difference results in a net upward force on the object. The magnitude of the force is proportional to the pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the submerged volume of the object, i.e. the displaced fluid. For this reason, an object whose average density is greater than that of the fluid in which it is submerged tends to sink. If the object is less dense than the liquid, the force can keep the object afloat. This can occur only in a no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymethyl Methacrylate
Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite, Astariglas, Lucite, Perclax, and Perspex, among several others ( see below). This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many other purposes. Although not a type of familiar silica-based glass, the substance, like many thermoplastics, is often technically classified as a type of glass, in that it is a non-crystalline vitreous substance—hence its occasional historic designation as ''acrylic glass''. Chemically, it is the synthetic polymer of methyl methacrylate. It was developed in 1928 in several different laboratories by many chemists, such as William Chalmers, Otto Röhm, and Walter Bauer, and first brought t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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