| Name | Expertise | Status |
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Ralph Salier-Hellendag
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| Science Fair Judge for many years and experience with robotics, biology, chemistry, industrial processes, metalurgy and metal forming. | Available
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Marnie
U.S.
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| I can answer elementary and middle school level general science questions, as well as questions on high school level biology, environmental science, and animal science. | Available
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Sue Kayton
U.S.
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| I can answer almost any student science question! I especially like ones involving silkworms, spacecraft and computers. | Available
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Dan Fink
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| Though my experience is mostly in the fields of electricity, magnetism, and physics, I have a broad science background. My career is in the field of alternative power sources -- solar, wind, water and battery power. But any questions about electricity, magnetism, energy conservation, power generation, electric motors, and even general physics are very welcome--especially from kids. They ask the best questions of all! I pride myself in answering science questions accurately, with ideas for SAFE, easy experiments that kids can perform by themselves--and that let them prove the answers to their own satisfaction. I think science should be fun, and available to everyone, regardless of age. | Available
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2008-12-01 heat and freeze: Hi Adri -- If you freeze the Coke, and the container stays intact (no leaks of liquid or gas), everything will be just like it was before, fizz and all, when you thaw it out. Usually, though, the container...
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2008-11-29 Bridges: I assume you mean the span of the bridge (width from one end to the other) is 27 cm. The arch can be shallow or deep - look at the photos. If the arch is deep the Masonite is longer. If the arch is...
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2008-11-29 Bridges: I think you are describing an "arch bridge" and here are some links that will be useful. Keep in mind that Masonite is strong, but brittle. It crackes easily when bent, but holds a lot of weight when...
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2008-11-28 chemistry: Beryllium is a metal. It's poisonous, very expensive, and is very strong even at high temperatures. When I was working as a spacecraft designer, sometimes we used beryllium to make parts that had to...
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2008-11-27 soler panels: Hi Shawn -- Most solar chargers are for 12 volt batteries, because these are the most common in vehicles. But if your wattage needs are not very high, there are lots of small solar panels out there intended...
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