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DIY sun imaging telescope and Schlieren imaging
Color to Voice Tool (an Aid...View Instructable »
About waffle makers: Many years ago, a few days after Christmas, I spotted a small white waffle maker on sale at Walmart for $4. It still works perfectly! This just points out that waffle makers are very simple appliances with less parts than a toaster. They should last many years and need not cost much. Just don't submerge them in water to clean.
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Uh, he specifies isopropyl alcohol which is available at any drug store or Walmart.
The reason you don't feel the discharge is because the current generated in the plasma ball is very high frequency AC and this is subject to the Skin Effect. AC tends to travel on the outside of conductors. That is one reason why stranded wire is prefered for AC. It has more surface area than solid wire. See this link for more info.https://en.wikipedia.org/wiki/Skin_effect
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