|
Day-glo
The Day-Glo Color Corp. (also styled as DayGlo) is a privately held American paint and pigments manufacturer based in Cleveland, Ohio. It was founded in 1946 by brothers Joseph and Robert Switzer and is currently owned by RPM International. It specializes in fluorescent paint and pigments, such as those used in safety applications, artwork and signage. It invented black-light fluorescent and daylight fluorescent paints and nondestructive testing methods using fluorescent dyes. History Robert and Joseph Switzer of Berkeley, California began investigating fluorescence in the 1930s using a black light to identify naturally occurring fluorescent compounds.Ensminger, David. "Black Light Panthers: The Politics of Fluorescence," ''Art in Print'' Vol. 5 No. 2 (July–August 2015). By mixing these compounds with shellac, they invented the first black light fluorescent paints. Joseph used these paints in his amateur magic show and sold magic kits based on the black light fluoresce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bob Switzer
Robert C. Switzer (19 May 1914 – 20 August 1997) was an American inventor, businessman and environmentalist. Switzer was co-inventor of the first black light fluorescent paint along with his brother Joseph Switzer and the inventor of the Magnaglo process for nondestructive flaw-detection in machined parts. The brothers founded the Day-Glo Color Corp. in 1946 to develop and manufacture fluorescent paints, pigments and other products. Biography Early life Switzer was born in Fromberg, Montana, to parents Maud (Slocum) and Emmet Switzer and was raised in Berkeley California. In 1932, he received a scholarship from the Scaife Scholarship Foundation of Oakland, California, so he attended the College of Chemistry at the University of California, Berkeley, in hopes of becoming a physician. During the summer of 1933, while working to unload tomatoes from a freight car at a H. J. Heinz Company laboratory in Berkeley, California, Switzer fell and suffered several serious injur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorescence
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore a lower photon energy, than the absorbed radiation. A perceptible example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the electromagnetic spectrum (invisible to the human eye), while the emitted light is in the visible region; this gives the fluorescent substance a distinct color that can only be seen when the substance has been exposed to UV light. Fluorescent materials cease to glow nearly immediately when the radiation source stops, unlike phosphorescent materials, which continue to emit light for some time after. Fluorescence has many practical applications, including mineralogy, gemology, medicine, chemical sensors (fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, cosmic-ray detection, vacu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blacklight Paint
Black light paint or black light fluorescent paint is luminous paint that glows under a black light. It is based on pigments that respond to light in the ultraviolet segment of the electromagnetic spectrum. The paint may or may not be colorful under ordinary light. Black light paint should not be confused with phosphorescent (glow-in-the-dark) or daylight fluorescent paint. History The invention of black light paint is attributed to brothers Joseph and Robert Switzer in the 1930s. After a fall, Robert suffered a severe head injury that resulted in a severed optic nerve. His doctor confined him to a dark room while he waited for his sight to recover. Joseph, who was a chemistry major at the University of California, Berkeley, worked with Robert to investigate fluorescent compounds. They brought a black light into the storeroom of their father's drugstore looking for naturally fluorescing organic compounds and mixed those compounds with shellac to develop the first black light f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berkeley, California
Berkeley ( ) is a city on the eastern shore of San Francisco Bay in northern Alameda County, California, United States. It is named after the 18th-century Irish bishop and philosopher George Berkeley. It borders the cities of Oakland and Emeryville to the south and the city of Albany and the unincorporated community of Kensington to the north. Its eastern border with Contra Costa County generally follows the ridge of the Berkeley Hills. The 2020 census recorded a population of 124,321. Berkeley is home to the oldest campus in the University of California System, the University of California, Berkeley, and the Lawrence Berkeley National Laboratory, which is managed and operated by the university. It also has the Graduate Theological Union, one of the largest religious studies institutions in the world. Berkeley is considered one of the most socially progressive cities in the United States. History Indigenous history The site of today's City of Berkeley was the territo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manufacturing Companies Based In Cleveland
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range of human activity, from handicraft to high-tech, but it is most commonly applied to industrial design, in which raw materials from the primary sector are transformed into finished goods on a large scale. Such goods may be sold to other manufacturers for the production of other more complex products (such as aircraft, household appliances, furniture, sports equipment or automobiles), or distributed via the tertiary industry to end users and consumers (usually through wholesalers, who in turn sell to retailers, who then sell them to individual customers). Manufacturing engineering is the field of engineering that designs and optimizes the manufacturing process, or the steps through which raw materials are transformed into a final ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historic Chemical Landmarks
The National Historic Chemical Landmarks program was launched by the American Chemical Society in 1992 to recognize significant achievements in the history of chemistry and related professions. The program celebrates the The central science, centrality of chemistry. The designation of such generative achievements in the history of chemistry demonstrates how chemists have benefited society by fulfilling the ACS vision: Improving people's lives through the transforming power of chemistry. The program occasionally designates International Historic Chemical Landmarks to commemorate "chemists and chemistry from around the world that have had a major impact in the United States". List of landmarks 1993 *Bakelite, the world's first completely synthetic plastic, developed by Leo Baekeland around 1907 1994 *List of Lehigh University buildings#Chandler-Ullmann Hall (1883, 1938), Chandler Chemistry Laboratory at Lehigh University, constructed in 1884 *Joseph Priestley House, U.S. home of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disraeli Gears
''Disraeli Gears'' is the second studio album by the British rock band Cream. It was released in November 1967 and reached No. 5 on the UK Albums Chart. Search "Cream" in ''Name of Artist'', and No. 1 on the Swedish and Finnish charts. The album was also No. 1 for two weeks on the Australian album chart and was listed as the No. 1 album of 1968 by ''Cash Box'' in the year-end album chart in the United States. The album features the singles "Strange Brew" and " Sunshine of Your Love", as well as their respective B-sides "Tales of Brave Ulysses" and " SWLABR". The original 11-track album was remastered in 1998, and then subsequently released as a two-disc ''Deluxe Edition'' in 2004. Production The album was recorded at Atlantic Studios in New York between 11 and 15 May 1967, following the band's nine shows as part of Murray the K's "Music in the 5th Dimension" concert series. Cream's American label, ATCO, was a wholly owned subsidiary of Atlantic Records. The sessions were pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cream (band)
Cream were a British rock band formed in London in 1966. The group consisted of bassist Jack Bruce, guitarist Eric Clapton, and drummer Ginger Baker. Bruce was the primary songwriter and vocalist, although Clapton and Baker also sang and contributed songs. Formed from members of previously successful bands, they are widely regarded as the world's first supergroup. Cream were highly regarded for the instrumental proficiency of each of their members. During their brief three-year career together, the band produced four albums, ''Fresh Cream'' (1966), ''Disraeli Gears'' (1967), ''Wheels of Fire'' (1968), and ''Goodbye'' (1969). Beginning with ''Disraeli Gears'', the band was joined in the studio by producer and multi-instrumentalist Felix Pappalardi, who became an important influence on the band's sound. Cream's music spanned many genres of rock music, including blues rock (" Crossroads", "Born Under a Bad Sign"), psychedelic rock (" Tales of Brave Ulysses", " White Room ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychedelic Art
Psychedelic art (also known as psychedelia) is art, graphics or visual displays related to or inspired by psychedelic experiences and hallucinations known to follow the ingestion of psychedelic drugs such as LSD, psilocybin, and DMT. The word "psychedelic" (coined by British psychologist Humphry Osmond) means "mind manifesting". By that definition, all artistic efforts to depict the inner world of the psyche may be considered "psychedelic". In common parlance "psychedelic art" refers above all to the art movement of the late 1960s counterculture, featuring highly distorted or surreal visuals, bright colors and full spectrums and animation (including cartoons) to evoke, convey, or enhance psychedelic experiences. Psychedelic visual arts were a counterpart to psychedelic rock music. Concert posters, album covers, liquid light shows, liquid light art, murals, comic books, underground newspapers and more reflected not only the kaleidoscopically swirling colour patterns of LSD hal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-visibility Clothing
High-visibility clothing, sometimes shortened to hi vis or hi viz, is any clothing worn that is highly luminescent in its natural matt property or a color that is easily discernible from any background. It is most commonly worn on the torso and arm area of the body. Health and safety regulations often require the use of high visibility clothing as it is a form of personal protective equipment. Many colors of high visibility vests are available, with yellow and orange being the most common examples. Colors other than yellow or orange may not provide adequate luminescence for conformity to standards such as ISO 20471. As a form of personal protective equipment, high-visibility clothing is worn to increase a person's visibility and therefore prevent accidents caused by persons not being seen. As a result, it is often worn in occupations where hazardous situations are created by moving vehicles or low lighting conditions. These occupations include railway and road workers, airpor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Sign
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones. Later, signs with directional arms were introduced, for example the fingerposts in the United Kingdom and their wooden counterparts in Saxony. With traffic volumes increasing since the 1930s, many countries have adopted pictorial signs or otherwise simplified and standardized their signs to overcome language barriers, and enhance traffic safety. Such pictorial signs use symbols (often silhouettes) in place of words and are usually based on international protocols. Such signs were first developed in Europe, and have been adopted by most countries to varying degrees. International conventions Various international conventions have helped to achieve a degree of uniformity in Traffic Signing in various countries. Categories Traffic signs can be grouped into several types. For example, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Day-glo")
