Saturday, November 25, 2017
Ruthenium-106 Cloud
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In October 2017 the German Federal Office for Radiation Protection detected a radioactive cloud containing ruthenium-106 wafting over Europe...
Friday, November 17, 2017
Iron from Used Toner Cartridges
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Students and teachers all do a lot of printing and photocopying. If your laser printer or photocopier is like ours, it probably has a sign ...
Saturday, November 4, 2017
Energy Content of Food
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As I read the"nutritional information" panel on my box of cereal this morning I wondered how you would measure the "energy co...
Thursday, November 2, 2017
Spud Lite?
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"Spud Lite", the advertising poster said, "25% less carbs", followed in fine print by "than other potatoes". ...
Thursday, September 14, 2017
Food From Toxic Cycads
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The Chamorro people of Guam were suffering from a terrible disease that resulted in paralysis, dementia and death. As the Chamorro be...
Sunday, September 10, 2017
I Hate STEM Education!
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You might think it strange that I hate STEM education since I spend my life encouraging people to study chemistry. It's not the educatio...
Thursday, September 7, 2017
Graphene from Graphite
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In 2004, University of Manchester researchers isolated graphene by applying sticky tape to a piece of graphite and peeling off a layer, then...
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