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Cake day: October 6th, 2023

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  • Ehhh, I recently posted elsewhere: about 80 species of mosquito carry dangerous (for human) diseases. The other 3400 are harmless if very mildly annoying. And all of those species share a niche with their harmless genera mates.

    It’s really really hard to kill just one species though, especially if they DO share an ecological niche with the species you don’t want to kill.



  • they have negligible kinetic energy and zero penetration, relying on surface heating to cause damage.

    Once you’re talking hundreds of kilowatts of average power (usually pulsed in much shorter increments) you’re not really talking about “surface heating” but more about “metal instantly vaporizes” if you focus that beam on target.

    But even then, you don’t need to hit the explosives. Pumping THAT much energy into a target will absolutely destroy sensors even if does nothing kinetic.


  • There are bullets and bullets. A 35mm flakpanzer round is very much not the same cost as a 9mm bullet from a random handgun.

    Similarly, there are lasers and lasers. A 30kW laser like being tested in 2015 is nowhere near the 300 kW monsters like HELCAP meant for missile defence.

    To compare, 300kW laser delivers 300.000 joules on target every second. Now, granted, that “target” might be a circle bigger than your actual target, but then, bullets can also miss. A 20mm solid bullet from a Phalanx CIWS delivers some 60.000 joules on target per hit. 300kW doesn’t so much “heat the missile” as it “makes metal sublimate on the spot”.