Iron filings fall between two pieces of plexiglass while ghostly numbers appear, counting down 30 seconds. Just as quickly as they appear, the numbers disappear – dropping down to the bottom of ...
Metal dental fillings leak mercury if they are exposed to a new powerful type of medical scan, scientists have found. They studied the effect of ultra-high-strength MRI - the latest in scanning ...
If you have metal fillings and you've accidently put tin foil in your mouth then you'll know it isn't a great feeling. The reason it hurts is because you get a galvanic shock which is when your ...
The coherer is a tube consisting of two electrodes with metal filings between them. By applying the radio frequency across the electrodes, the filings cling together, actually forming tiny micro ...
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