The lightness or darkness of a color is called its value.
You can find the values of a color by making its tints and shades.
Tints are light values that are made by mixing a color with white. For…
(350 or more miles long)Alabama-Coosa (600 mi.; 966 km): From junction of Oostanula and Etowah R. in Georgia to Mobile R.Altamaha-Ocmulgee (392 mi.; 631 km): From junction of Yellow R. and South R…
(Encyclopedia) nitrogen mustard, any of various poisonous compounds originally developed for military use (see poison gas). Like mustard gas and lewisite, it is a vesicant (blistering agent). In the…
(Encyclopedia) Ross, Alexander, 1783–1856, Canadian fur trader and pioneer, b. Scotland. He went to Canada in 1805, taught school in Upper Canada, and in 1810 left for Oregon as a clerk in John Jacob…
(Encyclopedia) Uslar Pietri, ArturoUslar Pietri, Arturoärt&oomacr;ˈrō &oomacr;sˈlär pyāˈtrē [key], 1906–2001, Venezuelan novelist and essayist. Uslar Pietri is considered one of the most…
(Encyclopedia) Ibizan houndIbizan houndēbēˈzŏn, ĭbˈə– [key], also called Ibizan Podenco, breed of tall, swift dog of ancient origin now found chiefly in the Balearic Islands and other areas of Spain…
(Encyclopedia) Permian periodPermian periodpûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290…
National Poetry Month Features, raves, and an Election Haiku Contest
APRIL is National Poetry Month! Celebrate this month-long holiday with a collection of features on poets…
THE HUMAN SKELETON BONES JOINTS FIND OUT MORE
The body is supported and its internal parts protected by a strong yet flexible framework of BONES called the skeleton. These bones meet at…
ARE ALGAE AND SEAWEED THE SAME THING? DO ALGAE LIVE ONLY IN WATER? ALGAE CLASSIFICATIONFIND OUT MOREAlgae are plantlike organisms that make food by photosynthesis. All algae contain chlorophyll,…
