I am really taken by the "Safe-T" design embellished fire extinguishers, but not the price. There are no reviews online that I can find to give me insight into what the product is like, not that I'd be in a position to buy one anyway.. so I would like to make one.
ref: https://safe-t.us
Now, I...
Recent concept art for induction powered plugs to replace fixed plugs like the BS1363 proposed a feature which would lock the plug in place by passing a current through the socket area to create a magnetic field to keep it in place (much like a door lock) - I would like to know how feasible this...
If two touching planks of wood are kept in place with opposing magnets in each plank, can one set have their polarity changed by passing an electrical current through them, allowing the other plank to move easily, and when the electricity switched off the plank now remain firmly in a new...
