As long as the magnet is moving relative to the mercury, then it should generate an eddy current.Would a magnet moving or spinning submerged in mercury create electrical currents in the (conductor) mercury ?
The mercury is forming the rotor of a DC motor. The description explains the setup.Thank you gentlemen.
1.- Do not understand the video. Is there a motor - where- doing what ? Spinning the mercury ?
2.- Did a test which am unsure is proper, with negative results.
Placed two probes in seawater as conductive liquid instead of mercury. Moved a powerful neodymium magnet in it. No effect registered on a 20mV/div
Is that a wrong way to 'design' the test ?
The video for the above is 22 MB; do not know how to shrink it to fit here. Am clumsy to link it; perhaps will work :
----> https://www.dropbox.com/s/k8pyawdbm9kp149/P1010946.MOV?dl=0
That mercury toxicity is where the term ,"mad as a hatter" comes from. Mercury was used to make top hats.I assume most of us are aware of the toxic effects of Mercury fumes.?
That mercury toxicity is where the term ,"mad as a hatter" comes from. Mercury was used to make top hats.
https://www.history.com/news/where-did-the-phrase-mad-as-a-hatter-come-from
I appreciate your caution Eric. It makes sense to be specially careful with something that can poison you irreversibly and incrementally. The safe handling of mercury does include handling it only when necessary. Safe handling procedures changed radically for mercury over the years but room temperature liquid mercury has physics that say otherwise than the warnings now repeated.Hi,
Please take care:
At room temperature, exposed elemental mercury can evaporate to become an invisible, odorless toxic vapor. If heated, it is a colorless, odorless gas. Learn about how people are most often exposed to elemental mercury and about the adverse health effects that exposures to elemental mercury can produce.21 Dec 2021
Basic Information about Mercury | US EPA
https://www.dw.com/en/just-how-dangerous-is-mercury-anyway/a-16522491
This liquid form of mercury is especially dangerous because it vaporizes at room temperature. And when it vaporizes, it fills the air with tiny, invisible mercury atoms that are both scentless and soluble in oils or fats
It was worse where I went to grade school. Our teacher (4th grade) had a bottle of mercury and we were all made to take a copper penny and rub it with mercury to turn it a silver color!Yes back then it was far worst. Our school for example was once evacuated and then closed down for several weeks after some precocious teenager either spilled or poured it on the floor of one of the classrooms
Hi Eric,Hi,
I assume most of us are aware of the toxic effects of Mercury fumes.?
E
https://www.who.int/news-room/fact-sheets/detail/mercury-and-health
Clip:
The inhalation of mercury vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fatal. The inorganic salts of mercury are corrosive to the skin, eyes and gastrointestinal tract, and may induce kidney toxicity if ingested.31 Mar 2017
I had a ton of mercury thermometers now i have none and it's hard to find one now.It was worse where I went to grade school. Our teacher (4th grade) had a bottle of mercury and we were all made to take a copper penny and rub it with mercury to turn it a silver color!