Equipment: A flashlight connected in series with a wire coil, a small (~2L) dewar of liquid nitrogen, safety goggles and safety gloves. What it does: When the coil is at room temperature, the ...

To insulate the coil from the iron they use Kapton tape ... The soldering tips are simply made from thick copper wire sculpted into the correct shape. There are advantages to using a soldering ...

All you need is some iron, wire, and a power source ... of a name for himself involving project that use various coils of wire, too, like this project we featured recently which uses two ...

Iron ore futures fell on Monday as the latest tariff threat from US President Donald Trump triggered broad risk-off sentiment, although signs of recovering demand in top consumer China limited losses.

The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core makes a temporary electromagnet. It loses its ...