New posts in Metals

Why don't dielectric materials have coloured reflections like conductors?

Is there any material that is NOT conductive and IS magnetically attractive?

Why does a gold leaf appear blue if made very thin?

Can metal rods detect underground wires?

Why don't metals bond when touched together?

What causes stress concentration (aka stress risers/raisers) at corners?

What are some dense elements I can use for a demonstration?

Why is quicksilver (mercury) liquid at room temperature?