Didymium (Greek: δίδυμο, twin) is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing...

chemist Carl Gustav Mosander extracted a rare-earth oxide residue he called didymium from a residue he called "lanthana", in turn separated from cerium salts...

lanthanum oxide and a pinkish third component which he called "didymium" meaning "twin". Didymium was accepted as an element for many years, appearing in Dmitri...

Didymium is a genus of slime molds in the family Didymiaceae. Didymium aquatilis Didymium difforme Didymium squamulosum Didymium wildpretii Leontyev, Dmitry...

cinereum (Batsch) Pers. (1794) Synonyms Lycoperdon cinereum Batsch (1783) Didymium cinereum (Batsch) Fr. (1822 (1829) Badhamia cinerea (Batsch) J.Kickx f...

Didymium wildpretii is a species of slime mold which feeds on the decaying remains of various species of cacti. It was first described in 2007 and has...

Didymium difforme is a species of slime mold belonging to the family Didymiidae. "IRMNG - Didymium difforme (Pers.) Gray, 1821". www.irmng.org. Retrieved...

acid. The metals that formed these oxides were thus named lanthanum and didymium, officially discovered in Vienna in 1885 by Carl Gustaf Mosander. Von Welsbach...

a so-called "element" that was even given the chemical name of "didymium". "Didymium" was found some years later to be simply a mixture of two genuine...

expand the ability to see violet and blue hues, similar to didymium glass. However, didymium glasses are superior for this purpose as it absorbs less light...

TTAGGG Filamentous fungi Neurospora crassa TTAGGG Slime moulds Physarum, Didymium TTAGGG Dictyostelium AG(1-8) Kinetoplastid protozoa Trypanosoma, Crithidia...

example, Squamuloderma nullifila is actually a species from the genus Didymium. The following classification is based on Adl et al. (2005) while the classes...

astronomical filters similarly use didymium in heavier concentration. Even astronomical filters which don't use didymium typically are some kind of narrow...

and on bryophytes. Most Myxogastria are terrestrial, though some, like Didymium aquatilis are aquatic, and D. nigripes is semi-aquatic. Myxogastria are...

Douglas. "cereal". Online Etymology Dictionary. Retrieved 2011-01-02. didymium was originally mistaken for an element, later it was discovered that it...

solvents and flames to view the test flame through a cobalt blue glass or didymium glass to filter the interfering light of contaminants such as sodium. Flame...

known rare-earth elements had reached six: yttrium, cerium, lanthanum, didymium, erbium, and terbium. Nils Johan Berlin and Marc Delafontaine tried also...

forms very light grayish-blue hexagonal crystals. The rare-earth mixture didymium, previously believed to be an element, partially consists of neodymium(III)...

difficult one, and those were formerly thought to be just one element didymium – but that is an alloy of the two.[citation needed] There are two series...

name for promethium. D Didymium 59/60 Mixture of the elements praseodymium and neodymium. Mosander wrongly believed didymium to be an element. Da Davyum...

curriculum design Di, a prefix used in organic chemistry nomenclature Didymium, a mixture of the elements praseodymium and neodymium once thought to be...

Welsbach in 1901, was an Austrian scientist and inventor, who separated didymium into the elements neodymium and praseodymium in 1885. He was also one of...

to −4 °C, with an average minimum temperature of 10 °C. The slime mold, Didymium wildpretii feeds on the decaying remains of F. latispinus in Mexico. Biología...

55 25.09 Cerium oxide (Ce2O3) 31.38 29.20 36.64 Lanthanum oxide (La2O3) Didymium oxide (Di2O3) } {\displaystyle {\Big \}}} 30.88 26.26 30.21 Yttrium oxide...

professor of general and agricultural chemistry. In 1874 he theorised that didymium was in fact two elements; this theory was confirmed in 1885 when Carl Auer...

lanthanum, a tetravalent cerium, and a pentavalent didymium. However, the higher valency for didymium had not been established, and Mendeleev tried to do...

pp. 1248–9 Mosander, C. G. (1843). "On the new metals, Lanthanium and Didymium, which are associated with Cerium; and on Erbium and Terbium, new metals...

contained in it have been divided among the genera Physarum, Stemonitis and Didymium. Julia Walochnik; Rolf Michel; Horst Aspöck (2004). "A molecular biological...

a second element from cerium, and this he called didymium. Although he did not realise it, didymium too was a mixture, and in 1885 it was separated into...

dielectric in combination with silicon. Praseodymium-doped glass, called didymium glass, turns yellow and is used in welding goggles because it blocks infrared...