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Ball point pen draws electrical circuits. (Original Post)
rug
Nov 2013
OP
Callmecrazy
(3,065 posts)1. Cool product...
As I am an electrician, I could get into a lot of mischief with that thing.
rug
(82,333 posts)2. It looks so easy they better keep it out of middle schools.
hunter
(38,310 posts)3. Seems like an awesome tool for playing with high frequency antenna designs.
For example:
http://en.wikipedia.org/wiki/Fractal_antenna
Wounded Bear
(58,647 posts)4. That's kind of cool...
but it's not the pen, it's the ink.
As an old engineer since retired, I wish we'd had something like that years ago.
Brother Buzz
(36,416 posts)5. We did have pencil line resistors
Although it had no practical use, it was a good tool for demonstrating resistance.
Ptah
(33,024 posts)6. What if I draw a capacitor?
jmowreader
(50,554 posts)7. Depends on how far apart you draw the two plates, prob.
I wonder if this ink sticks to glass. If so, they'd be able to also sell the pen to the lucrative market of people whose rear window defrosters are broken.