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Mellish, Bob. "Chromatic aberration lens diagram". 6 March 2006. https://upload.wikimedia.org/wikipedia/commons/a/aa/Chromatic_aberration_lens_diagram.svg.
Hosken, R. W. (2007). "Circle of least confusion of a spherical reflector". Applied Optics. 46 (16): 3107–17. Nonetheless, more than 40 years after the band broke up, millennials continue to stream, boogie and replicate ABBA’s expressive and colourful clothing —perhaps courtesy of the films, an appreciation for retro fashion and general chatter on social media. Oh and also the fact that they released new, and groundbreaking, music over the past year. Therefore, it should come as little surprise that ABBA has been nominated for two of the top categories at the 2023 Grammys —Record of the Year category, for ‘Don’t Shut Me Down’ and Album of the Year for Voyages. While they face some stiff (and equally stylish) competition, including Adele, Beyoncé, Harry Styles, Lizzo and more —I certainly think ABBA’s in for a good chance. Please ‘Take A Chance’ on them Recording Academy? Günther, Norbert. “Abbe, Ernst”. Dictionary of Scientific Biography. Charles Scribner’s Sons. New York, NY, 1970. Each piece captures the essence and flair of ABBA's renewed style, blending iconic 70s vibes with modern fashion twists. Step into the spotlight and transform into a bona fide 'Super Trooper' when you take center stage as the 'Dancing Queen' at any 70's themed soirée!
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Figure 2. Chromatic aberration results in a single beam of light to have a different focal point for each wavelength. [4] Chromatic Dispersion
Ultraviolet light can be broadly categorized into UVA (400-320 nm), UVB (320-290 nm), and UVC (290 nm to 10 nm). Ultraviolet light makes up 5% of all solar radiation falling on the Earth; among the 5%, 90% is composed of UVA and 10% of UVB. Nearly all UVC is absorbed by the ozone layer of the atmosphere. UVC exposure typically occurs from manufactured resources. Ultraviolet light can cause damage to tissue by disrupting molecular bonds and incapacitating their function. These molecules can also be damaged by action of free radicals produced as a byproduct of ultraviolet light in the presence of oxygen and a photosensitizing pigment. [16] But like most groovy looks from the disco era, ABBA was at the forefront. They sang about ‘Dancing Queen'[s] after all. Mellish, Bob. "Abbe diagram". 28 May 2010. https://upload.wikimedia.org/wikipedia/commons/b/bd/Abbe-diagram_2.svgIn the eight years that followed, the group achieved legendary success, with eight consecutive number-one albums and nine chart-topping singles in the UK alone. ABBA also topped the pop charts at least once in nine other countries overseas. Their success in the US was more mild, but they still had 20 songs that placed on the Billboard 100 in their brief 8-year tenure. American Academy of Ophthalmology. “Section 3: Clinical Optics” Basic and Clinical Science Course: 2017 - 2018(2017). Specific gravity is a ratio of a material’s density to the density of water at 4 degrees Celsius. Density and specific gravity can both compare substances in terms to the amount of mass per unit volume. Density is simply mass per unit volume, however specific gravity is a ratio and thus has no units. A lens with a low specific gravity means that an identically sized lens of a high specific gravity would be heavier. This property is relevant in designing lenses as a lighter lens is preferable for eyeglass wearers. [16] Ultraviolet Absorption Wang, L; Oku, H; Ishikawa, M. “An adaptive achromatic doublet design by double variable focus lenses”. Novel Optical Systems Design and Optimization XVII(2014). doi:10.1117/12.2061203.
Nave, Carl Rod. "Refraction of Light". Hyperphysics - Georgia State University, 2009. hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html. Celebrate the timeless style of ABBA with outfits that pay homage to their unparalleled legacy and their exciting new chapter. Join the voyage and shine on the dance floor!
In their first five years, ABBA barely toured with Andersson claiming the band had performed live no more than two dozen times before embarking on their only international tour in 1979. Wohlever, Richard. The Indispensable Dispensing Guide: The Eyecare Professional's Basic Dispensing Handbook. Optical Laboratories Association, 2004. Zhang, John X. J., and Kazunori Hoshino. Molecular Sensors and Nanodevices: Principles, Designs and Applications in Biomedical Engineering. 2nd ed., Academic Press, an Imprint of Elsevier, 2019. Flint glasses are optical glasses with high chromatic aberration (Abbe number below 50) which tend to have a high refractive index (typically greater than 1.55). [12] Corrective glass lenses are often made from flint glass as the higher refractive index allows for a lighter weight. Dispersive prisms are also often constructed from flint glass to achieve a high angular dispersion. [12] Chromatic Dispersion Correction Our dazzling array of Abba fancy dress attire is a vibrant tribute to an era that will have you humming 'Gimme! Gimme! Gimme!' Abba, undoubtedly one of the most iconic pop acts of the 1970s, notched up an impressive tally of over twenty top-ten hits during that unforgettable decade. Even today, their music continues to resonate worldwide, with a staggering 385 million records sold and a constant presence on the airwaves. But Abba's allure extended beyond their musical prowess; they were also renowned as style trailblazers, inspiring countless fans to emulate their legendary costumes showcased in their music videos.
The band name is a member-centric acronym – Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. High index polycarbonate lenses were popularized in the 1980s due to light weight, thin profile, superior impact resistance, and ultraviolet protection. These lenses are often recommended for children, young adults, individuals with active lifestyles, and as safety eyewear. They are very durable and can be up to 30% thinner than regular glass or plastic lenses. [17] Disadvantages include high chromatic aberration indicated by its low Abbe number, which results in color fringing most noticeable in strong prescriptions. Additionally, polycarbonate is the most easily scratched plastic, thus requiring a scratch-resistant coating. [16] Trivex Figure 3. Calculation of the Abbe number to describe the amount of chromatic dispersion for a medium. [8] ABBA are one of the greatest pop outfits in history. Their blend of lush orchestrations and light, bouncy europop was both unique and commercially appealing, taking much of the world by storm.In the late 1800s, German physicist Ernst Abbe, a colleague of Carl Zeiss, created the Abbe number, a measure of the magnitude of chromatic dispersion for the visible spectrum. [9] Also known as the V-number, the Abbe number combines the refractive indices of a material at three wavelengths (486.1 nm blue from hydrogen, 589.2 nm yellow from sodium, and 656.3 nm red from hydrogen) to approximate the amount of chromatic aberration a material will have when visible light passes through it (Figure 3). [8] The Abbe number is inversely related to the amount of chromatic aberration. A high Abbe number indicates low chromatic aberration, and a low Abbe number indicates high chromatic aberration. Naturally, Madonna also wore an ABBA-inspired ensemble during the music video, which included a pink spandex leotard and a bright sequinned belt, as well as a ’70s shag hairstyle. FYI the shag is a la mode again this year. Paschotta, Rüdiger. Encyclopedia of Laser Physics and Technology: Optical Glasses. Wiley-VCH, 2008.
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