Search results
Results from the WOW.Com Content Network
Lycopodium powder is a yellow-tan dust-like powder historically used as a flash powder. [1] Today, the principal use of the powder is to create flashes or flames that are large and impressive but relatively easy to manage safely in magic acts and for cinema and theatrical special effects .
Contrary to urban legend, an M-80 that contains 3,000 mg of powder is not equivalent to a quarter-stick of dynamite. Dynamite generally contains a stable nitroglycerin-based high explosive, whereas M-80s or any other kind of firecracker contain a low explosive powder, like flash powder or black powder. [10]
1909 flash-lamp 1903 view camera Crop of patent number 636,492. The electric flash-lamp uses electric current to start flash powder burning, to provide a brief sudden burst of bright light. It was principally used for flash photography in the early 20th century but had other uses as well.
Vintage AHA smokeless flash powder lamp kit, Germany. An alternative to magnesium ribbon was flash powder, a mixture of magnesium powder and potassium chlorate, was introduced by its German inventors Adolf Miethe and Johannes Gaedicke in 1887. A measured amount was put into a pan or trough and ignited by hand, producing a brief brilliant flash ...
A flash powder composition may specify multiple different fuels. Some fuels can also serve as binders. Common fuels include: Metals. Aluminium – most common fuel in many classes of mixtures, also a combustion instability suppressant. Less energy per mass than carbon but less gas evolution, retaining heat in the reaction mixture.
In pyrotechnics a salute is a device primarily designed to make a loud report (bang), rather than have a visual effect, although most salutes also have a bright flash. They most commonly consist of a 70:30 mixture of potassium perchlorate and dark aluminium powder and may have titanium added for a cloud of sparks (titanium salute). [1]
The same flash powder used for military tactical pyrotechnics can also be used for several theatrical special effects. [11] They are used to produce loud, bright flashes of light for effect. Though some flash powders are too volatile and dangerous to be safely used, there are milder compounds that are still incorporated into performances today.
Colors may vary. They contain 10 grams of flash powder that is ignited via a visco fuse positioned in the center or side of the tube. [1] In some cases, they are maxed out at 15 grams which is the physical limit for 2" x 3/4". These are the most common flash salutes you will see on the streets in and around the 4th of July.