I’m developing a Kaiju that is capable of firing concentrated microwaves at its targets. I want it to be able to destroy military hardware, set buildings aflame, boil seawater and turn a street full of people into paste. How powerful would these microwaves need to be? What sort of effects would they have on a target? What would people see when it was fired?
Microwaves are invisible to the naked eye. So, radiating heat around the beam. Though it is more a wave than a laser. The military used to use microwave dishes for communications and such. It would take a lot of joules to produce a good sized 'beam' of radiation that can boil water, and melt steel. If you look into the particulars at the right frequencies, you can disable electronics by basically frying them on the receiving end. For a more raw form of a microwave, look into what a gaping hole in the atmosphere can do, and how it acts like a magnifying glass focusing all the raw solar radiation and other radiations directly onto the surface that would boil water and burn/melt all kinds of stuff and pretty quick. Alot of it falls down to the wave lengths, and how focused than can be to still be potentially dangerous at the level your talking. If you could focus your microwaves output in a smaller housing than what it already has, it might be able to do those things on a limited scale, and it also might blowup with the energy being confined to a much smaller area and melt and blowout capacitors and such. There is also that mil spec civil control device that uses a focused microwave on a bradband frequency to convince people not to mass into a right, and can burn the skin. You could look into what would happen if they narrowed the wave lenght and see at what point people just kinda explode from all bodily fluids instantly turned from liquid to gas. Here is something that may help you sort the whole issue out, if you are good at the maths. https://onlinelibrary.wiley.com/doi/pdf/10.1002/9781118636336.app1
