How do we make artifact bombs better?

[aloe]

I gotta admit, I like the big artbombs existing. I would like to see them around so that traitors can use them on occasion, because fighting someone for control of a bulky object while you both have 30 seconds before you explode is honestly really fun. Still, to make them more noticeable/manageable I'd suggest:

1. Scale the range of the bomb activation noise with the range of the bomb. Sure, rookie scientists can't be trusted to use an ejector, but surely someone on station will know. If a bomb is going to explode half the station, make sure half the station hears it. This is sort of the same fix as the announcement thing, but I prefer the noise to a full announcement.
   
2. Also scale the detonation timer with the volume. Big bombs can be spaced more easily, as more people will have time to respond, and small bombs can still serve as cautionary tales to artifact technicians.
   
3. Finally, blacklist touch/borg touch as activation methods. People will often go around just tapping on artifacts even without understanding them (as evidenced by the massive damage a borger left in the halls can do), and having a bomb armed in the middle of the station because a random crewmember tapped on a statue isn't really fun for anyone. People who have a greater understanding of how arts activate and what they can do will still be able to activate them via other methods, but hopefully if they know how to activate them, they also know how to space them (or how to drag them to center station mass if they're a baddie, I guess).