I
Iceland spar
126; "The Book of..." 133; Iceland spar is a calcite, which gets its name from "chalix" the Greek word for lime, a most amazing and yet, most common mineral. It is one of the most common minerals on the face of the Earth, comprising about 4% by weight of the Earth's crust and is formed in many different geological environments. Iceland spar is basically clear cleaved fragments of completely colorless (ice-like) calcite, originally discovered and named after Eskifjord, Iceland where the calcite is found in basalt cavities. It best demonstrates the unique property of calcite called double refraction where, when a ray of light enters the crystal and due to calcite's unique optical properties, the ray is split into fast and slow beams. As these two beams exit the crystal they are bent into two different angles (known as angles of refraction) because the angle is affected by the speed of the beams. A person viewing into the crystal will see two images ... of everything. From this website
I.G.L.O.O.
122; Inter-Group Laboratory for Opticomagnetic Observation, a "radiational clearinghouse in Northern Alaska"
Imbottigliata
28; Italian = bottled;
Inconvenience, The
3; Chums of Chance's hydrogen skyship
Inner American Sea
71;
Interface
53-54;
inukshuk
126;
Invisibility
43; "a sacred condition" 43; desks, 39; hawk, 55; "intervals of" 61; "emerged from" 62; "the pale invisible" 64; detectives at Colorado mines, 92; duster, 94; "window into" for Kit Traverse, 99; "...distance" 106; Islands disappearing, 108; fireworks, 112; "imperceptable war" 122; extra man, 125; 127; invisible heckler, 133; Hidden People, 134; 135; 142; 144; 150; 153; 160; 163; Fleetwood, 164; home, 165; 176;
Ipsow, Ray
29;
Ironworkers Union
43;
Isafjoror
125;
Isandhlwana
22; "massacre of British troops at"; On January 22, 1879, Isandlwana was the site of the Battle of Isandlwana, where over 20,000 Zulu warriors defeated a contingent of British soldiers in the first engagement of the Anglo-Zulu War. Almost the entire column of about 1,200 British soldiers was killed, and the regimental colours were lost; Wikipedia entry
