Invisible here means: Not detectable by metal detection portals at airports.
That's right, I wanted to find out what non metal knifes and non metal slingshot ammo can do to a block of ballistic gelatin.
I started out with the gorgeous flint knife Ad'lan (from the Zombie forum) made for me (we traded a while ago), and then went on and tested a dogwood knife (my own handiwork), a Cold Steel "Grivory" knife (plastics) and a Kyocera ceramics knife. Then, I tested what pebbles do to the gelatin, in comparison to steel and lead.
All of the knifes proved to be dangerous, even the wooden one. The Cold Steel was the best stabber, the ceramics knife the best slasher. The pebbles penetrated the gelatin about two inches deep (the metal balls went straight through).
http://www.youtube.com/watch?v=itd3eIaWSn4
My conclusion: Either allow everybody to take a knife aboard, or increase security. It is simply too easy for criminals and terrorists to smuggle weapons through security.
Now lots of people commented that there is metal in the ceramics and grivory knife. That is a myth. Cold Steel attached a (removable) key ring to the knife, that is all. The whole knife (w/o the key ring) weighs only about 30 gramms, just twice as much as my wedding ring. Not heavy enough to trigger the detectors even if HALF the knife would be metal.
And there is NO metal in the small Kyocera ceramics knife. I checked.
What do YOU think should be done? Increase security, or legalize on board weapons?
That's right, I wanted to find out what non metal knifes and non metal slingshot ammo can do to a block of ballistic gelatin.
I started out with the gorgeous flint knife Ad'lan (from the Zombie forum) made for me (we traded a while ago), and then went on and tested a dogwood knife (my own handiwork), a Cold Steel "Grivory" knife (plastics) and a Kyocera ceramics knife. Then, I tested what pebbles do to the gelatin, in comparison to steel and lead.
All of the knifes proved to be dangerous, even the wooden one. The Cold Steel was the best stabber, the ceramics knife the best slasher. The pebbles penetrated the gelatin about two inches deep (the metal balls went straight through).
http://www.youtube.com/watch?v=itd3eIaWSn4
My conclusion: Either allow everybody to take a knife aboard, or increase security. It is simply too easy for criminals and terrorists to smuggle weapons through security.
Now lots of people commented that there is metal in the ceramics and grivory knife. That is a myth. Cold Steel attached a (removable) key ring to the knife, that is all. The whole knife (w/o the key ring) weighs only about 30 gramms, just twice as much as my wedding ring. Not heavy enough to trigger the detectors even if HALF the knife would be metal.
And there is NO metal in the small Kyocera ceramics knife. I checked.
What do YOU think should be done? Increase security, or legalize on board weapons?