In this video, I experiment with copper wire through the stem of a tomato plant to see if this prevents blight and other ...

was the same as iB the commencement of the experiment, excepting in three spots, where there was deep tirrositfn. The principal of these Mftg irourul the jioint, where the copper wire connected ...

When a length of copper or nichrome is heated, it lengthens due to thermal expansion. The wire is suspended between two posts and heated by a variac. A small weighted hook is placed in the middle of ...