(Encyclopedia) Spode, Josiah, I, 1733–97, English potter. He founded a pottery firm in 1770 at Stoke-on-Trent in the Staffordshire pottery district. Creating many of his patterns after Japanese…
(Encyclopedia) Characteristics of Spectral Classes for Main Sequence Stars
Class
Color
Surface Temperature
Strong Lines
O
blue-white
35,000℃
ionized helium
B
blue-white
21,000℃
helium
A
white…
(Encyclopedia) berylberylbĕrˈĭl [key], mineral, a silicate of beryllium and aluminum, Be3Al2Si6O18, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white…
(Encyclopedia) hyacinth, any plant of the genus Hyacinthus, bulbous herbs of the family Liliaceae (lily family) native to the Mediterranean region and South Africa. The common, or Dutch, hyacinth of…
(Encyclopedia) cupric sulfatecupric sulfatek&oomacr;ˈprĭk sŭlˈfāt, ky&oomacr;ˈ– [key] or copper (II) sulfate, chemical compound, CuSO4, taking the form of white rhombohedral crystals or…
(Encyclopedia) woad, name for a perennial plant (Isatis tinctoria) of the family Cruciferae (or Brassicaceae; mustard family) and for a blue dye obtained from its leaves. The plant is believed to be…
Encountering Expressions
Algebra
Encountering Expressions Introducing Variables Translating Words into Math Behold the Power of Exponents Living Large with Scientific Notation Dastardly…
