Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Keim silicate paint, 14,000 sq. ft. Architect: Zimmer Gunsel Frasca Partnership.
Noon-Day Rest in Marble Canyon, after an original sketch by Thomas Moran, from J. W. Powell, ...
Photographic Mock-up of the East Pediment of the Parthenon Using Photographs of the Extant Marble
What is the total number of valence electrons in a silicate ion, SiO32-?