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NGC 6826 (also known as Caldwell 15) is a planetary nebula located in the constellation Cygnus.It is commonly referred to as the "Blinking Planetary", although many other nebulae exhibit such "blinking".
Fluorescence intermittency, or blinking, is the phenomenon of random switching between ON (bright) and OFF (dark) states of the emitter under its continuous excitation.It is a common property of the nanoscale emitters (molecular fluorophores, colloidal quantum dots) related to the competition between the radiative and non-radiative relaxation pathways.
A fog display, fog screen, vapor screen or vapor display is a system that uses haze machines or water vapor to create a semi-transparent wall, or "curtain" of suspended particles which trapped in a thin sheet (laminar flow) of air and are illuminated by a projector, [1] in order to produce a display whose images seem to float in mid air. [2]
A 175-watt mercury-vapor light approximately 15 seconds after starting. A closeup of a 175-W mercury-vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized mercury to produce ...
At high peak currents, bright blue-white. Used by artists for special-purpose lighting. Xenon: Gray or blue-gray dim white. At high peak currents, very bright green-blue. Used in flashlamp, xenon HID headlamps, and xenon arc lamps. Nitrogen: Similar to argon but duller, more pink; at high peak currents bright blue-white. used in the Moore lamp ...
Although there were similar parts in the episode with red and blue flashes, two anime techniques, called paka paka [a] and "flash", [b] made the scene particularly intense. [2] These flashes were bright strobe lights, with blinks at a rate of about 12 Hz for approximately six seconds. [7]
A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.
A vapor cone (also known as a Mach diamond, [1] shock collar, or shock egg) is a visible cloud of condensed water that can sometimes form around an object moving at high speed through moist air, such as an aircraft flying at transonic speeds. When the localized air pressure around the object drops, so does the air temperature.