Live data from Hacker News

Iron Beam: Israel's first operational anti drone laser system

mod.gov.il

71–80 of 629 posts

Re: Iron Beam: Israel's first operational anti drone laser system

#71

Earlier quoted context omitted.

Hm, you think longer than the laser is firing? Could there be windup?

I imagine there's some sort of storage system, like a huge bank of ultra-capacitors, that are constantly kept charged. The wind up would be if that bank is depleted and they need to recharge. Delivering 100kW for a short period of time is definitely a feat.

Ah, good point, that seems likely.

Re: Iron Beam: Israel's first operational anti drone laser system

#72
post #35

It is so sad the Humanity needs to develop weapons...

On the last day of the year, I am taking a few minutes to linger on this. At face value, most would agree with this, myself included. But I think we can dive one layer deeper. There are different schools of thoughts whether mankind is inherently good or evil. Over the years, I have become pretty firm believer that every person has the innate capacity for both good and evil, and the outcome is determined by both character and circumstances. Solzhenitsyn famously wrote (quote by Gemini):

"The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil."

If you subscribe to this, then a weapons system can also be a force for good, if used by an entity for the purpose of "peace through strength". The strength keeps our innate capability for evil in check, as the consequences for evil would be guaranteed. A case in point is the MAD doctrine for nuclear weapons which has prevented a world war for the last 80 years.

I'd appreciate philosophical replies. Am I wrong, either in a detail or at the core of the argument? Are there additional layers? I would like to kindly ask to keep replies away from views on the specific players in this specific press release. We'd just be reiterating our positions without convincing anyone.

(edit: grammar, slight rewording)

Re: Iron Beam: Israel's first operational anti drone laser system

#73
post #40

Israel saw over 16,000 rocket attacks last year from fundamentalist groups like Hamas, Hezbollah, Iran, and Yemen. The Iron Dome intercepted ~90% of them, resulting in thousands of lives saved. Iron Beam is the newer incarnation of this technology that uses lasers to intercept incoming rockets and drones with precision and much lower cost. Wonderful technology.

Each Iron Dome interception cost many times more than the cost of the rockets. This will make it cheaper for other poorer nations to afford and operate.

Re: Iron Beam: Israel's first operational anti drone laser system

#74

Earlier quoted context omitted.

“How did the occupied Palestinian territories become occupied? In 1967 Israel launched what it said was a pre-emptive defensive war against Jordan, Egypt and Syria, as they appeared to be preparing to invaded.” The problem with these summaries is everyone can always somewhat legitimately claim a prior offence. The 1967 offense resulted from the shitshow that was the 1948 war [1], which itself resulted from a history…

It sounds like they both suck.

> It sounds like they both suck

They both suck and they both have legitimate grievances.

They’re also both proxies on like four major axes (Iran vs Saudi Arabia, America vs Russia, America vs China and whatever Turkey is up to) and more minor axes than I’ve seen anyone even bother keeping track of.

It’s a deep and deeply fucked conflict that doesn’t lend well to armchair border drawing from an ocean away from first principles.

Re: Iron Beam: Israel's first operational anti drone laser system

#75

Personally I think that defensive technology like this is fantastic. It means that innocent citizens will be protected from constant bombardment or thread of bombardment by cheap mass produced rockets or drones. Israeli civilians have faced bombardment by tens of thousands of rockets from Gaza for the last 20 years [1]. Outside the Middle East there's many areas threatened by combatants with similar cheap missiles. P…

> It means that innocent citizens will be protected from constant bombardment or thread of bombardment by cheap mass produced rockets or drones

One could also hope that e.g. Iran starts focusing its economy on the wellbeing of its people versus playing regional cop to America’s world police.

Re: Iron Beam: Israel's first operational anti drone laser system

#76
post #48

Earlier quoted context omitted.

It's quiet the power requirement. I wonder how long it has to focus on a drone to eliminate it. Like how long is this thing consuming 100kW?

Good question, probably depends a lot on how much energy actually makes it to the target some distance away. And then how much is actually absorbed. Probably depends more on the power density then, rather than total power? Can't imagine they get a very small spot at multiple km unless they use gigantic lenses or multiple independent laser focused on the same spot

Maybe it involves multiple converging beams to reduce transmission losses?

Re: Iron Beam: Israel's first operational anti drone laser system

#77
post #59
post #39

Earlier quoted context omitted.

This is designed to save people.

There is no such thing as a defensive weapon. You might be tempted to say "what about a missile shield?" but such a thing allows the owner to act with impunity with levels of violence we arguably haven't seen since 1945. As a real example of this, the only reason a deeper conflict didn't develop with Iran this year was because Iran demonstrated they could overwhelm the various layers of Israel's missile shield and Ir…

[flagged]

Re: Iron Beam: Israel's first operational anti drone laser system

#78
post #64

A lot of comments decrying new weapons tech, but I think drone defense tech is particularly critical right now and going to save a lot of lives. Put another way, I don't think we would be against new clothing that made bullets less effective, even if it remains terrible that such clothing is needed. Especially as AI becomes better and cheaper and suicide drones become more nimble and autonomous. If you have seen any…

Yeah, I see this as ultimately a wash.

In Russia/Ukraine, drones have proven to be a very real threat to deal with (arguably also in Iraq).

What this means is wealthy nations will snatch up or recreate this and deploy it. That will stop smaller resistance forces from either defending or attacking. Depending on the nation in question this could both good or bad. Just like drones, guns, or tanks.

Effectively, this puts the status quo back to where it was before mass drone deployments.

Re: Iron Beam: Israel's first operational anti drone laser system

#79
post #50
post #19

Earlier quoted context omitted.

Israeli police had to teach American one how to do violence? Come on

Just recently, US has worked with Saudis and Ukrainians and others to supply heavy and novel weaponry to be deployed in eg Yemen, coordinating airstrikes, giving intel etc. to devastating effect and has done even more direct involvement in brutal wars, whether proxy wars of whatever. The PATRIOT act and subsequent militarization of police at home supports the GP’s statement about a boomerang. I don’t think GP meant t…

> There are people who blame influential Jews for everything

To what extent are they in the same bucket as those who reflexively blame the CIA or Russia or immigrants or white people for everything?

Re: Iron Beam: Israel's first operational anti drone laser system

#80
post #64

A lot of comments decrying new weapons tech, but I think drone defense tech is particularly critical right now and going to save a lot of lives. Put another way, I don't think we would be against new clothing that made bullets less effective, even if it remains terrible that such clothing is needed. Especially as AI becomes better and cheaper and suicide drones become more nimble and autonomous. If you have seen any…

Yeah, I see this as ultimately a wash. In Russia/Ukraine, drones have proven to be a very real threat to deal with (arguably also in Iraq). What this means is wealthy nations will snatch up or recreate this and deploy it. That will stop smaller resistance forces from either defending or attacking. Depending on the nation in question this could both good or bad. Just like drones, guns, or tanks. Effectively, this puts…

Which, IMO, is better than having swarms of cheap bombs flying around.

Taken to the extreme, I also prefer the current status quo vs. everyone having a nuclear-tipped ICBM, and would welcome a countermeasure if cheap ICBMs became a thing.

Post reply on HN