THIS DAY IN SCIENCE: Penicillin Is Discovered - Sir Alexander Fleming in 1928

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The sonic boom problem – Katerina Kaouri

The sonic boom problem – Katerina Kaouri

Objects that fly faster than the speed of sound (like really fast planes) create a shock wave accompanied by a thunder-like noise: the sonic boom. These epic sounds can cause distress to people and animals and even damage nearby buildings. Katerina Kaouri details how...
SciNews Feb 26

SciNews Feb 26

Stem cells, 3d printers, hadrons I have known, and Mars science mysteries – cool stories to share with your science students.  This eclectic collection of current science news stories is brought to you by STAOBlog. SciNews is published every Monday and Thursday....
Exothermic Reactions

Exothermic Reactions

Overview Several components in a plastic bag are exposed to water. Upon mixing, a slow and steady evolution of heat occurs due to the oxidation of iron and reduction of oxygen in the presence of sodium chloride and calcium chloride catalysts. Curriculum Connection:...
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