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Cake day: November 6th, 2023

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  • maser is a device that produces coherent microwaves, through amplification by stimulated emission. The term is an acronym for microwave amplification by stimulated emission of radiation

    TIL, thank you friend!

    There has been development of smarter jammers that’ll ‘listen’ for the frequency used, and pump out jamming to defeat it, but I haven’t heard of a steerable unit like that - very interesting.


  • Yup, air burst and lasers are the leading ideas atm. But you’re still dealing with a zone of protection a kilometer or so - not a big deal to defend the main command post or vital supply depots, but spreading that out to industrial areas, grid power stations and substations, seaport complexes, or cities and your ‘blanket’ of protection starts looking too small for the job of covering the ‘want to have’ as well as the ‘need to have’ protected.


  • As someone who’s been following this fairly closely since the Syrians started toying with it, and the Ukrainians threw it into hyperdrive… There’s no good counter when drones are cheap to make and can be programmed to run on a flight course:

    • Jamming has to fight inverse square so the radius is trash (and kills a lot of useful civil RF ranges like WiFi). Something like 200 meters is a strong system currently, and power needs ramp up fast.
    • ‘Kinetic hard kill’ like traditional air defense is way too expensive per shot, plus there’s issues with UXO, debris, and limited launching platforms. Legacy air defenses like Tunguska or FlakPanzer with programmable airburst rounds work best, but at very short range and make a lot of secondary fragments by design. Taking the guns out, interceptor missiles start at five figures.
    • Laser systems have a lot of promise with none of the explosive downsides whilst being cheaper per shot, but range isn’t great - you’re focusing energy to physically melt the target, and all light suffers from diffraction. It is better than jamming, but far too close for comfort.

    That assumes you know the drone is coming, mind you. Piston-engine flying wings aren’t silent, but they are generally made of polymers/laminates that are hard to detect via radar. Thermal cameras and acoustic sensors so far are the best early warning systems, but radar is still a huge help.

    And then there’s FPV and quadcopters. While a larger munition like Shaheed can be under $10k, even the more advanced FPV/quads with night vision (or even thermal) cameras frequently run under $1,000, up to a few thousand. Air dropped explosives have been fundamental in changing the course of the civil war in Myanmar for the rebels, it’s like having a budget Air Force and spy satellites on call.



  • As an expat who’s recently visited back, I’m astounded at how UK smokers behave. Not even on a night out either; the chef on break flicking the finished end into the street puddle, folks lighting up right outside shop entrances, or the general lack of awareness towards smoking around children. Socially learned behavior that never gets the same tutting you might a speeding car or queue jumper.

    I took a trip abroad years ago and was bewildered to see a guy light up and then pull out a foil-type pouch too. Not only did the butt go into that pouch for later disposal, but all his ash did too. I’ve heard Japan is much the same way, even Americans are far better culturally about sequestering themselves before smoking.





  • You are not part of the community of Israel… You are not part of the national democratic camp which we all belong to in this house, and many of the people despise you. You are not partners in the Zionist enterprise. You are a foreign implant. You are an errant weed. Sensible Judaism spits you out. You placed yourself outside the wall of Jewish law… We say to this horrible man and those like him: you are a shame on Zionism and an embarrassment to Judaism.

    Prime Minister Yitzhak Rabin, after the Cave of the Patriarchs massacre.

    I’ve haven’t seen such a strong condemnation of Jewish extremism or terrorism since from any MK or PM. The current lot are instead fanning the flames actively, and I’m glad to see someone in the government call Itmar out publicly.



  • You replied to a commenter pointing out that a million plus civilians are starving to death, with “WHAT ABOUT THE ISRAELI POLICE???”

    Everyone except the most hardcore anti-semites was completely horrified on Oct 7-9. Then the IDF began its bombing campaign, and here we are today, quibbling over which hospital is okay to blow up, or how much the Israelis should be allowed to starve the Gazan

    Just like the Global War on Terror, the crimes done by America dominate the discussions and history- 9/11 and the civilian deaths is acknowledged as the casus belli but the overreaction is our legacy