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04/22/2025
posted in Electrical Engineering
by Anonymous Poster
This is a dual-incomer panel (see the image), but only one contactor should be ON at any given time. Why is a timer necessary in this setup? I underst...
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04/17/2025
posted in Electrical Engineering
by Anonymous Poster
Are there any drawbacks to using an Ex-rated panel in an application where a standard indoor industrial panel would be adequate? I understand that cos...
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04/16/2025
posted in General Discussion
by SolarEagle
Geothermal or fusion, which do you think is more attainable in a timely manner...?? Which one makes better economic sense at this time..?
If you had...
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04/16/2025
posted in General Discussion
by Randall
Set epoxy is very hard at room temperature, but, if you warm it up a bit by say putting it in boiling water briefly it becomes soft enough to easily t...
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04/14/2025
posted in General Discussion
by HiTekRedNek
IMHO:(To which I am currently entitled):
The reason the Titanic sank so fast, and so many people perished was because of accountants. The original pl...
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04/10/2025
posted in General Discussion
by HiTekRedNek
Toroidal propellers are great at reducing noise and increasing efficiency, currently being used in boat and drone props. I realize making wind turbine...
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04/08/2025
posted in BioMech & BioMed
by phoenix911
We’ve heard about frozen mammoths being discovered, with plant material still in their stomachs, and possible genetics still viable to bring the...
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04/05/2025
posted in General Discussion
by gaiatechnician
I did a solar cooker on equatorial mount last year and used it to steam soil and boil weeds, to kill seeds and pests in them (could use them directly...
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04/05/2025
posted in General Discussion
by HiTekRedNek
I must be getting somewhat senile or there is a bubble in my think tank.
I remember a math symbol that was like a square symbol ,but at the bottom of...
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04/05/2025
posted in General Discussion
by HiTekRedNek
I have asked this question before, I think, but did not get a direct answer. If an explosion is detonated in the core of an iceberg, will the ice abso...
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04/03/2025
posted in General Discussion
by NSS
Just thinking here. Ok unless somehow we invent WARP speed. And even if we do, everything is sooo far away in space, even if we traveled with Star Tre...
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04/03/2025
posted in General Discussion
by BruceFlorida
Using a Roku or Amazon Fire Stick in a hotel is easier with a travel router.
My wife and I spend about 10 nights a year in hotels. Some hotels, like...
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03/31/2025
posted in Challenge Questions
The accompanying diagram depicts 35 matches arranged in a spiral. Move 4 matches to create 3 squares.
03/31/2025
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02/28/2025
posted in Challenge Questions
Delroy the cat is taking a snooze on the couch.
He dreams he is encircled by 13 mice; 12 of them brown, 1 of them white.
Delroy's owner says that he...
02/28/2025
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01/31/2025
posted in Challenge Questions
A square snow fort contains 40 children.There are 3 defensive positions along each fort wall (8 total).
They have vowed to defend their fort against...
01/31/2025
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