Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Didymium> ?p ?o }
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- Didymium abstract "For the amoeboid species see Didymium wildpretii.Didymium (Greek: twin element) is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing, especially when a gas (propane) powered forge is used, where it provides a filter which selectively blocks the yellowish light at 589 nm emitted by the hot sodium in the glass, without having a detrimental effect on general vision, unlike dark welder's glasses. The strong ultraviolet light emitted by the superheated forge gases and insulation lining the forge walls is also blocked thereby saving the crafters' eyes from serious cumulative damage. (See also arc eye, also known as welder's flash or photokeratitis.) The usefulness of didymium glass for eye protection of this sort was discovered by Sir William Crookes.Didymium photographic filters are often used to enhance autumn scenery by making leaves appear more vibrant. It does this by removing part of the orange region of the color spectrum, acting as an optical band-stop filter. Unfiltered, this group of colors tends to make certain elements of a picture appear "muddy". The "Sodium Vapor Process" used in motion picture matte work included a didymium filtering prism in the camera.Didymium is also used in calibration materials for spectroscopy.".
- Didymium thumbnail Mendeleevs_periodic_table_(1869_year).jpgwidth=300.
- Didymium wikiPageID "758637".
- Didymium wikiPageLength "7264".
- Didymium wikiPageOutDegree "46".
- Didymium wikiPageRevisionID "643385792".
- Didymium wikiPageWikiLink Ammonium_nitrate.
- Didymium wikiPageWikiLink Amoeba.
- Didymium wikiPageWikiLink Amoeboid.
- Didymium wikiPageWikiLink Arc_eye.
- Didymium wikiPageWikiLink Band-stop_filter.
- Didymium wikiPageWikiLink Bastnäs.
- Didymium wikiPageWikiLink Blacksmith.
- Didymium wikiPageWikiLink Blacksmithing.
- Didymium wikiPageWikiLink Carl_Auer_von_Welsbach.
- Didymium wikiPageWikiLink Carl_Gustaf_Mosander.
- Didymium wikiPageWikiLink Carl_Mosander.
- Didymium wikiPageWikiLink Category:Neodymium_compounds.
- Didymium wikiPageWikiLink Category:Praseodymium_compounds.
- Didymium wikiPageWikiLink Category:Rare_earth_alloys.
- Didymium wikiPageWikiLink Cerium.
- Didymium wikiPageWikiLink Chemical_element.
- Didymium wikiPageWikiLink Corning_Glass_Museum.
- Didymium wikiPageWikiLink Corning_Museum_of_Glass.
- Didymium wikiPageWikiLink Czech_language.
- Didymium wikiPageWikiLink Didymium_wildpretii.
- Didymium wikiPageWikiLink Eye_protection.
- Didymium wikiPageWikiLink Filter_(optics).
- Didymium wikiPageWikiLink Forge.
- Didymium wikiPageWikiLink Fractional_crystallization_(chemistry).
- Didymium wikiPageWikiLink Glassblowing.
- Didymium wikiPageWikiLink Jöns_Jacob_Berzelius.
- Didymium wikiPageWikiLink Jöns_Jakob_Berzelius.
- Didymium wikiPageWikiLink Lanthanum.
- Didymium wikiPageWikiLink Matte_(filmmaking).
- Didymium wikiPageWikiLink Monazite.
- Didymium wikiPageWikiLink Morse_Code.
- Didymium wikiPageWikiLink Morse_code.
- Didymium wikiPageWikiLink Moser_(glass_company).
- Didymium wikiPageWikiLink Moser_Glass.
- Didymium wikiPageWikiLink Neodymium.
- Didymium wikiPageWikiLink Nitric_acid.
- Didymium wikiPageWikiLink Optical_filter.
- Didymium wikiPageWikiLink Per_Teodor_Cleve.
- Didymium wikiPageWikiLink Photographic_filter.
- Didymium wikiPageWikiLink Photokeratitis.
- Didymium wikiPageWikiLink Praseodymium.
- Didymium wikiPageWikiLink Prism.
- Didymium wikiPageWikiLink Prism_(optics).
- Didymium wikiPageWikiLink Propane.
- Didymium wikiPageWikiLink Sodium.
- Didymium wikiPageWikiLink Spectroscopy.
- Didymium wikiPageWikiLink Steenkampskraal_mine.
- Didymium wikiPageWikiLink Sweden.
- Didymium wikiPageWikiLink Ultraviolet.
- Didymium wikiPageWikiLink William_Crookes.
- Didymium wikiPageWikiLink File:Mendeleevs_periodic_table_(1869_year).jpg.
- Didymium wikiPageWikiLinkText ""didymia"".
- Didymium wikiPageWikiLinkText "Didymium".
- Didymium wikiPageWikiLinkText "didymium".
- Didymium hasPhotoCollection Didymium.
- Didymium wikiPageUsesTemplate Template:Citation_needed.
- Didymium wikiPageUsesTemplate Template:Lang-el.
- Didymium wikiPageUsesTemplate Template:Multiple_issues.
- Didymium wikiPageUsesTemplate Template:When.
- Didymium subject Category:Neodymium_compounds.
- Didymium subject Category:Praseodymium_compounds.
- Didymium subject Category:Rare_earth_alloys.
- Didymium hypernym Mixture.
- Didymium type Article.
- Didymium type ChemicalSubstance.
- Didymium type Article.
- Didymium type Element.
- Didymium comment "For the amoeboid species see Didymium wildpretii.Didymium (Greek: twin element) is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing, especially when a gas (propane) powered forge is used, where it provides a filter which selectively blocks the yellowish light at 589 nm emitted by the hot sodium in the glass, without having a detrimental effect on general vision, unlike dark welder's glasses.".
- Didymium label "Didymium".
- Didymium sameAs Didimi.
- Didymium sameAs Didym.
- Didymium sameAs Didimio.
- Didymium sameAs Didyme_(chimie).
- Didymium sameAs Didímium.
- Didymium sameAs Didimio.
- Didymium sameAs Дидим.
- Didymium sameAs Dydym.
- Didymium sameAs Didímio.
- Didymium sameAs m.038xn2.
- Didymium sameAs Дидим.
- Didymium sameAs Didym.
- Didymium sameAs Дідим.
- Didymium sameAs Q428912.
- Didymium sameAs Q428912.
- Didymium wasDerivedFrom Didymium?oldid=643385792.
- Didymium depiction Mendeleevs_periodic_table_(1869_year).jpg.
- Didymium isPrimaryTopicOf Didymium.