When I bump one end of a long metal bar, the other end instantaneously moves. Can I use this to send messages faster than light? | Science Questions with Surprising Answers
Online Metal Supply A36 Hot Rolled Steel Flat Bar, 1/2" x 1-1/2" x 36" : Amazon.in: Home & Kitchen
Round Bar | Cut To Size | Metal Supermarkets
A metal bar to demonstrate one atmosphere.
Varnished Hot-rolled steel Round Bar, (L)2m (Dia)6mm | DIY at B&Q