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Comment is also a bit misleading. Costco contracts all of their products, or for a better on-topic example - their air conditioning installation.

It's the same with Home Depot. They don't "make" anything, they contract everything out (Home Depot-line tools, i.e. Ryobi, their flooring installations to some of the cheapest local installers, etc.).


He's already beat out in their market, not much leverage there lol.


They must fight the social-justice war on all fronts.


China's satellites (Jilin-1, etc.) can essentially track things across the world in seconds versus minutes (i.e. it can follow a plane, or car on the street in real-time). So I'm guessing "radio silence" does not affect much locational opsec at this point.


I would imagine that the location of carrier groups is basically known at all times to serious adversaries, regardless of emissions. They're not exactly small and if you're doing it right they don't dive underwater.


It’s pretty crazy the technology that’s out there that we’ll never see / experience without working some high-level gov job.


You’ll be promptly disillusioned if you do

Governments aren’t ahead of the private sector and arent doing parallel innovation with their massive budgets, just knowing industry trends gets you an understanding of what to expect


They're ahead in very specific ways, mostly where there's no commercial activity that would justify the expense of investing in that area. e.g. extremely high resolution imaging satellites.


They do pay for edge connections of technology that will never exist in the civilian space though.


Yes they did.


This article is a fancy way of saying "we take keywords and break them down to synonyms", bundling "machine learning", and acting like it's a magical solution. Not to be dreary it's just not exciting.


Doing that in a way that actually makes search better is hard (and ACS isn't that at all)


"slander, libel, abusive content" is a slope we've all seen slipped on. People in power use it to censor views they don't like.


And people use it to paint false images of people or situations to suit their agenda. Lies spread more readily than truth.


And centralized moderation tools gravitate towards favoring these lies.

Even worse: lies about climate change are nowadays being spread via paid Youtube advertisements. This kind of centralized power should never have existed in the first place.


"There aren't significant differences between a V-2, AIM-120 AMRAAM, Minuteman, Patriot, Tomahawk, Saturn V, Delta IV, Falcon 9, et al.."

I didn't think news.ycombinator.com catered to misinformation. I'm guessing your PhD is in Aerospace Engineering?


They are all pointy metal tubes with wings and (an) engine(s), filled with fuel that go boom to make them fly, carrying some sort of payload.

Their only difference is to what purpose they are used. Some are used to destroy, some are used to kill, some are used to defend, some are used to throw stuff into space.

But they are all pointy metal tubes filled with boom powder.


Absolutely insane comment and can't believe this is allowed here.


Nearly all modern forms of rocketry trace their roots to German technologies like the V-2, and rockets used for space exploration in particular are direct or spiritual descendents of intercontinental ballistic missiles repurposed for civilian use.

There really is no difference to the rockets themselves, they are all varying forms of pointy metal pipes filled with boom powder. The only difference is the payload they carry; whether they are humans or spaceborne vessels like satellites, or explosives of various descriptions with which to destroy and kill.

If you disagree, and you've certainly made it clear you do, you can put forth counterarguments instead of claiming quackery.


Well, you've almost convinced me.

One quick question though, what was the "powder" used on, say, the Apollo missions?

I've always heard the Saturn V launch had a J-2 liquid propellant rocket engine that used used liquid oxygen and liquid hydrogen.


Obviously I'm saying "boom powder" as a generic and funny term for the various fuels used in rocketry. They can be liquids (RP-1, liquid hydrogen, liquid methane, various hypergolics like UDMH, etc.) or solids (eg: solid rocket boosters, most military missiles and rockets).

The Saturn V used RP-1 and liquid oxygen for the first stage, and liquid hydrogen and liquid oxygen for the second and third stages. The Apollo CSM used dinitrogen tetroxide and "Aerozine 50", a 50:50 mix of hydrazine and UDMH hypergolic fuels that was originally used for the Titan II ICBM.

Further reading:

https://en.wikipedia.org/wiki/Saturn_V

https://en.wikipedia.org/wiki/Apollo_command_and_service_mod...


Sure .. from my PoV I can live with "powder" it's the "boom" that rankles.

Relatively slow controlled energy release for thrust isn't particularly evoked by the word BOOM!!

Otherwise simplifying rockets and missiles as they are today to tubes of slow release thrust (with some additional wrinkles such as side thrust | directional thrust to 'balance' load over thrust, multi stages, etc) seems innocent enough.


"wristbands assigned to seats and a 5G/IOT"

Not sure what a "5G/IOT network" is, nor what vaporware claims "wristbands assigned to seats".



You're going to the very extreme end of what he meant by "loose"...


I'm going by the levels of "loose" I regularly see on flights. I regularly see seat belts buckled, effectively fully slacked. It's not everyone, but probably 5%.


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