lycopodium powder การใช้

• Because of the very small size of its particles, lycopodium powder can be used to demonstrate Brownian motion.
• Lycopodium powder, the dried spores of the common clubmoss, was used in Victorian theater to produce flame-effects.
• In special effects pyrotechnics, lycopodium powder and non-dairy creamer are two common means of producing safe, controlled fire effects.
• This species was also once one of the principal clubmoss species used for collection of Lycopodium powder, used as a primitive flashpowder.
• The fuels included mixtures of Lycopodium powder ( the spores of Lycopodium, or clubmoss ), finely crushed coal dust, and resin.
• The Pyr閛lophore ran on controlled dust explosions of various experimental fuels, including various mixtures of finely crushed coal dust, Lycopodium powder, and resin.
• A microscope slide, with or without a well, is prepared with a droplet of water, and a fine dusting of lycopodium powder is applied.
• They removed the slide, sprinkled lycopodium powder to the sulfur surface, softly blew the excess away, and transferred the image to a sheet of wax paper.
• In physics experiments and demonstrations, lycopodium powder is used to make sound waves in air visible for observation and measurement, and to make a pattern of electrostatic charge visible.
• Birkeland turned on the lights during a s閍nce, snatched her trumpets and discovered that the " spirit " noises were caused by chemical explosions induced by potassium and water and in other cases by lycopodium powder.
• Wriedt was exposed as a fraud by the physicist Kristian Birkeland when he discovered the noises produced by her trumpet were caused by chemical explosions induced by potassium and water and in other cases by lycopodium powder.
• The powder is also highly hydrophobic; if the surface of a cup of water is coated with lycopodium powder, a finger or other object inserted straight into the cup will come out dusted with the powder but remain perfectly dry.
• The Ni閜ces'Pyr閛lophore was fuelled by a mixture of Lycopodium powder ( dried spores of the Lycopodium plant ), finely crushed coal dust and resin that were mixed with oil, whereas de Rivaz used a mixture of hydrogen and oxygen.
• The German musician and physicist Ernst Chladni noticed in the eighteenth century that the modes of vibration of a membrane or a plate can be observed by sprinkling the vibrating surface with a fine dust ( e . g ., lycopodium powder, flour or fine sand ).
• He was particularly impressed by an observation that imposing a vocalization in ancient Sanskrit of Om ( regarded by Hindus and Buddhists as the sound of creation ) the lycopodium powder formed a circle with a centre point, one of the ways in which Om had been represented.