I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction that I'm aware of that would cause organics to ignite preferentially. In metals however, microwave frequency photon induce an electric current on the metal surface that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on any metal with lots of edges for the microwaves to bounce off of and interact with neighboring surfaces, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.

I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction that I'm aware of that would cause organics to ignite preferentially. In metals however, microwave frequency photon induce an electric current on the metal surface that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on any metal with lots of edges for the microwaves to bounce off of, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.

I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction that I'm aware of that would cause organics to ignite preferentially. In metals however, microwave frequency photon can create an electric current that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on any metal with lots of edges for the microwaves to bounce off of, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.

I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction that I'm aware of that would cause organics to ignite preferentially. In metals however, that frequency photon can create an electric current that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on any metal with lots of edges for the microwaves to bounce off of, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.

I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction that I'm aware of that would cause organics to ignite preferentially. In metals however, that frequency photon can create an electric current that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on anything with lots of edges for the microwaves to bounce off of, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.

I'm not in any way convinced on the "blue" thing. A blue laser wouldn't be anything special to melt metal and not burn wood. On the contrary, with a blue laser the wood would burn first.

If it was caused by a laser or directed energy weapon of some sort, it would need to be something that has a special interaction with metal and not organic material. Microwaves or slightly higher energy photons would heat up organics, but it wouldn't cause it to ignite, or rather, there is no special interaction there I don't think. That frequency photon can however create an electric current in metal that can create a plasma due to arching between adjoining surfaces. This won't do much on a flat metal surface, but on anything with lots of edges for the microwaves to bounce off of, this can potentially create a runaway effect. This is how some 3D metal printers work using microwaves to sinter metal powder (which has lots of bouncy edges).

Personally, I think the "blue" thing was a purposeful C_A counter op. I can't think of any physics reason why blue would be meaningful given the evidence.