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What is the difference between laser red, green and blue?
I see that red is the cheapest, it costs a little green and blue is more expensive. Then, What is the difference?
You ask about the color or the device? about the color, the only difference in frequency. Red is a frequency less than green, and green lower than Blue. Approximately 390 THz Red, Green and Blue 540 THz 700 THz (Tera Hertz) About the device: They are all types of semiconductor LEDs (light emitting diode), working as a laser, (very inverted electron population), which requires more energy than common led to obtain the laser. And made of different materials, depending on the quantum level difference in order to obtain the appropriate wavelength for light. Wave length is related with the frequency and the speed of light. Approx. Red 750 nm, Green 550 nm, Blue 350 nm (nano meters) emission wavelength (or frequency) depends on the quantum difference between the orbits of electrons "in the diode 'union'. When the electrons fall from the upper to the lower level, a photon is emitted. The wavelength of the photons depends on the quantum level the difference. In order to "produce the quantum level difference" has to choose different materials to construct the junction of the diode. Red lasers are easy to build and are produced in large quantities to lower their prices. LASER green little harder ro to construct and which cost a little more. blue laser was sought for many years, finally get the right mix to build "blue union. It is more difficult to build, and there enoguht production yet, so the cost is higher. Additionally, each year the diode are built with more 'power' which is another challenge to build the union with adequate current capacity is sufficient. Current must flow through the junction in order to "elevate" the level of electrons.
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Margaritaville DM1000 Frozen Concoction Maker List Price: $299.99 Sale Price: Too low to display Average Rating:   |
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Cool down as you dip your feet into the warm crystal waters of Margaritaville. This easy-to-use appliance makes all your favorite frozen drinks, shaving ice and automatically mixing the perfect proportion into the other ingredients. One-year limited warranty. |
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Margaritaville DM0500 Bahamas 36-Ounce Frozen-Concoction Maker List Price: $199.99 Sale Price: Too low to display Average Rating: |
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FoodSaver Margaritaville Frozen Concoction Maker Bahamas, Bahamas Frozen Concoction Maker The Bahamas Margaritaville Frozen Concoction Maker is the right party enhancer for your next "spur of the moment" party! At the touch of a button, the Shave-N-Blend control automatically makes a picture-perfect 36 ounces of margaritas in one easy step. The Bahamas Frozen Concoction Maker allows you to "shave only" and "blend only" to create customized concoctions. The ice reservoir holds enough ice to make one full pitcher of margaritas in one cycle. Simply fill the ice hopper with ice, add ingredients to the blending jar and fire it up! The Bahamas Frozen Concoction Maker does all the work... you take all the credit! Specifications: - Shaves ice and blends up to 36 ounces - Automatic settings mix the right proportion of ice with ingredients - Manual controls let you shave or blend to your ideal consistency - Tropical color design, chrome accents, maritime markings & compass rose indicator light - Durable powder-coated housing, sturdy blending jar & stainless steel accent trim - 1 Year Limited Warranty - 450 Watts, Mfg No: DM0500, Manufacturer: FoodSaver |
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Appalachia Waltz / Ma, Meyer, O'Connor List Price: $11.99 Sale Price: $9.52 Average Rating: |
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Oh Happy Day List Price: $17.98 Sale Price: $6.97 Average Rating: |
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You don't just hear gospel music, you feel it. At the heights of its power, this uniquely American art form connects the spirit of the writer, performer and listener with a truth much higher than presents travails. The notes, rhythms, and lyrics paint a picture of the ongoing tale of struggle, persecution, redemption and freedom. Blues, rock and roll, r&b, country and even modern hip hop and rap music have all been influenced by the sound and soul of gospel. It has faced down the bleak days of slavery, depression, violence and fear with a tear in its eye and a promise on its lips. On Oh Happy Day, a wide array of contemporary artists has been paired with some of today's leading gospel voices and legendary choirs. Together they explore a batch of gospel standards and main-stream hits that were clearly inspired by the old soulful sound and feel of gospel. It's an all-star celebration that just might take you someplace higher if you let it. Track listing: 1. I Believe - Jonny Lang (with the Fisk Jubilee Singers) 2. Presence Of The Lord - 3 Doors Down (with Soul Children of Chicago) 3. Higher Ground - Robert Randolph & The Clark Sisters 4. Keep The Faith - Jon Bon Jovi (with Washington Youth Choir) 5. People Get Ready - Al Green & Heather Headley 6. Waiting For My Child To Come Home - Mavis Staples & Patty Griffin 7. Storm Before The Calm - Michael McDonald (with West Angeles Cogic Mass Choir) 8. Redemption Song - Angelique Kidjo 9. A Change Is Gonna Come - Aaron Neville (with Mt. Zion Mass Choir) 10. Oh Happy Day - Queen Latifah (with Jubilation) 11. This Little Light Of Mine - Joss Stone & Buick Audra |
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