Japanese infrastructure company Kandenko, who is involved in many fields including electrical and telecommunication, has released a new video featuring an AgIC pen, which allows you to draw ink that ...
Kids love building electric circuits, but connecting light bulbs to batteries with fiddly wires is tricky for young hands. Play dough and light-emitting diodes (LEDs) solve the problem beautifully.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback