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Tooth Study Reveals Diets of Early Humans
Tooth Study Reveals Diets of Early Humans National Geographic News, Reporting Your World Daily Thursday, October 28, 2010 MAIN ANIMAL NEWS ANCIENT WORLD ENVIRONMENT NEWS CULTURES NEWS SPACE/TECH NEWS WEIRD PHOTOS VIDEO Tooth Study Reveals Diets of Early Humans...
 Common Minerals and Why They are Important
abrasives; bond for abrasive wheels; cements and concretes; insulating compositions; fertilizer; poultry grit; tarred roof- ing materials; and as a sizing (or ller) in textiles and paper. Fluorite (!uorspar): used in produc- tion of hydrofluoric acid, which is used in the pottery, cer...
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abrasives; bond for abrasive wheels; cements and concretes; insulating compositions; fertilizer; poultry grit; tarred roof- ing materials; and as a sizing (or ller) in textiles and paper. Fluorite (!uorspar): used in produc- tion of hydrofluoric acid, which is used in the pottery, ceramics, optical, electroplating, and plastics industries; in the metallurgical treatment of bauxite, which is the ore of alumina; as a !ux in open hearth steel furnaces and in metal smelting; in carbon electrodes; emery wheels
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http://www.mii.org/pdfs/mineraluses.pdf#page=1
www.mii.org/pdfs/mineraluses.pdf#page=1
abrasives; bond for <span class="highlight">abrasive</span> wheels; cements and concretes; insulating compositions; fertilizer; poultry grit; tarred roof- ing materials; and as a sizing (or ller) in textiles and paper. Fluorite (!uorspar): used in produc- tion <span class="highlight">of</span> hydrofluoric acid, which is used in the pottery, ceramics, optical, electroplating, and plastics industries; in the metallurgical treatment <span class="highlight">of</span> bauxite, which is the ore <span class="highlight">of</span> alumina; as a !ux in open hearth <span class="highlight">steel</span> furnaces and in metal smelting; in carbon electrodes; emery wheels
Neandertals Had Long Childhoods, Tooth Study Suggests
the extinct species had similarly lengthy childhoods. Printer Friendly Email to a Friend What's This? SHARE Digg StumbleUpon Reddit RELATED Neandertal Advance: First Fully Jointed Skeleton Built Neandertals Beaten by Rivals' Word Skills, Study Says Neandertals, Hyenas Fought for Caves,...
Radiation in Teeth Can Help Date, ID Bodies, Experts Say
of nuclear testing, in human tooth enamel. The process can determine the age of a tooth to within 18 months, far more precise than other methods of evaluating skeletal remains. "Tooth enamel preserves a permanent record of the amount of...
Dinosaur Tooth Found in Flying Reptile's Spine
been found to have a spinosaur tooth stuck in its spine. The discovery adds to the evidence that spinosaurs may have feasted on a wider variety of prey. "It's very uncommon to find the tooth of a dinosaur actually embedded in the bones of its prey," said...
Building Big: Home Insurance Building
Brick Engineer(s): William LeBaron Jenney Considered the first American skyscraper, the 10-story Home Insurance Building in Chicago was the first tall building to be supported by a metal skeleton of vertical columns and horizontal beams. Engineer William LeBaron Jenney discovered that t...
'Weird' Bucktoothed Dino Found in China
nests—hatching, not eating the eggs. A lizard skeleton found in the gut of one fossil suggested that they were indeed carnivores. But the tooth structure and wear patterns of the Incisivosaurus show the best evidence found to date for herbivory among theropods, sai...
New Primate Fossils Support 'Out of Africa' Theory
study, which was reported last week in the journal Science. Nocturnal Animals The well-preserved pieces of teeth, jaw, and facial bones belong to two new species, named Biretia fayumensis and Biretia megalopsis. The fossils were discovered at a site in the Fayum desert region in northern Eg...
A Classroom Full of Resources
22Mineral Information Institute Littleton, Colorado www.mii.org Your door knobs, locks and hinges are brass or steel (copper, zinc, iron ore, and alloys). Your electrical wiring is of copper or aluminum (bauxite). Your plumbing ! xtures may be made of brass (copper and zinc)...
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22Mineral Information Institute Littleton, Colorado www.mii.org Your door knobs, locks and hinges are brass or steel (copper, zinc, iron ore, and alloys). Your electrical wiring is of copper or aluminum (bauxite). Your plumbing ! xtures may be made of brass (copper and zinc) or stainless steel (iron, nickel and chrome). Your toilets, sinks and bathtubs are made of porcelain (clay) over iron, or plastic (petroleum). Your sewer system is made of clay or iron pipe (plastic pipes are made
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http://www.mii.org/pdfs/classroom.pdf#page=4
www.mii.org/pdfs/classroom.pdf#page=4
22Mineral Information Institute Littleton, Colorado www.mii.org Your door knobs, locks and hinges are brass or <span class="highlight">steel</span> (copper, zinc, iron ore, and alloys). Your electrical wiring is <span class="highlight">of</span> copper or aluminum (bauxite). Your plumbing ! xtures may be made <span class="highlight">of</span> brass (copper and zinc) or stainless <span class="highlight">steel</span> (iron, nickel and chrome). Your toilets, sinks and bathtubs are made <span class="highlight">of</span> porcelain (clay) over iron, or plastic (petroleum). Your sewer system is made <span class="highlight">of</span> clay or iron pipe (plastic pipes are made
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