Magnetic weapons

[Rivkin]

The only reference to coralls I remember is from Maqrizi who says that coralls are like steel in the way that like Allah made steel soft for David so he would make mails, coralls are a stone but can be made soft to make jewelry. Something like this .

I did not like the "miracles of the world". It just has this small segment about weapons, the rest is about other miracles.