No you can not bring any type of sharpe item. You can place it in your check-in luggage.
Safety pins doesn't contain carbon dioxide.
insulators
Yes, of course it is illegal to bring BB guns on planes.
it was inside his room with he and his safety pins
No.
The safety pin was invented by Walter Hunt who received a patent for it on April 10, 1849. Safety pins have been used for everything from fastening diapers to fashion statements
the refridgerator
steel
They are a variety of uses for pins. Safety pins are used to hold things in place such as clothing. Push-pins are used in a cork board for flyers and other forms of paper.
Castellated nuts are used with bolts that have holes drilled in them for cotter pins or safety wire. To torque one, first you bring the fastener to the published torque...say it's 90 lb-ft. You then tighten it just enough more to make the holes accessible to the cotter pins or the safety wire, and install the locking device.
It was invented during the industrial revolution
they can barely rust and that is in water