I'm trying to blow my friend up on our server to get back at him :) The problem is, it doesn't work for some reason. My TNT is connected to a detector track, but it isn't activated by minecart going over that detector. Here's a video of my setup. In the video, I put the minecart on the detector. I then show you the circuit and how it doesn't ignite the TNT. I found that when the minecart stays on the trigger, it actually activates 2nd batch of TNT, which was quite a surprise, since I tested it by riding the minecart and it didn't trigger anything.
So the question is: Where is the problem on the non-exploded side of the trap? and why doesn't minecart trigger the trap at all when it just runs over the detector track?