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<http://schema.org/description>
"Safely demonstrate open and closed series circuits without any danger of electric shocks! When the tube is &amp;#34;turned on&amp;#34;, the red, green, and blue lights light up and it makes an eerie fluttering tone. Activating the tube is the fun part - just touch the metal ends with both hands. Your body forms the conducting material that bridges the gap between the two metal strips and closes the circuit! 7&amp;#34; x 1.5&amp;#34;.         Read more on our Blog &amp;ndash; The Power of Electricity, Magnetism&amp;hellip; and Infomercials!          Read more on our Blog - An Introduction to the Plasma Globe "
<https://www.teachersource.com/product/energy-tube/>