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Arecibo Observatory Collapsed

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131–140 of 337 posts

Re: Arecibo Observatory Collapsed

#131
post #123

Earlier quoted context omitted.

I think it's high time for Puerto Rico to become a US state. Puerto Rico has twice the population of the two Dakotas combined and the only way they'll receive more-equitable treatment is if they become a state. I think the will is there locally but there has been resistance from established political factions in the US who fear a place that might tip the balance of power one way or the other.

PR residents are actively against the idea mainly because they don't pay fed taxes. only reason democrats are for the idea is because they believe it'll give them another two reliable seats in the senate.

PR residents voted in favor of statehood in a referendum[0] in the most recent election cycle. 52.34% voted in favor, based on a turnout of 52%.

[0] https://en.wikipedia.org/wiki/2020_Puerto_Rican_status_refer...

Re: Arecibo Observatory Collapsed

#132
post #40
post #38

Earlier quoted context omitted.

The problem (partly) is that the F-35 program puts money into 307 congressional districts in 45 states [1]. These insanely expensive defense projects are wealth transfer programs that make contractors like Lockheed and their many sub-contractors rich, and also create jobs in these communities. That a fighter plane may or may not come out the other end is only nominally important, the key is to spend the money. The mo…

The FTE employee-count alone underestimates the impact of national-scale science infrastructure. naic.edu is down right now (I suspect they're busy at the moment), but their data is used by tens to hundreds of institutions, each partially employing faculty, postdocs, and students. For agencies like NSF, the science is sometimes almost secondary. What matters perhaps the most is that qualified and capable students con…

I'd like to think that the near future will allow large space-based solutions in place of Earth-based and increasingly radiowave-polluted ones.

A far-side moon solution's probably still quite a way off, but I wonder if some sort of lagrangian or outward-facing satellites in geosynchronous orbit might work. I'm imagining satellites with large Earth-facing shields, sort of like a radiowave version of the sunshield on the James Webb Telescope. I'm probably missing some really obvious Physics 101-level reason that wouldn't work, but a girl can dream.

Re: Arecibo Observatory Collapsed

#133
post #38

Earlier quoted context omitted.

The problem (partly) is that the F-35 program puts money into 307 congressional districts in 45 states [1]. These insanely expensive defense projects are wealth transfer programs that make contractors like Lockheed and their many sub-contractors rich, and also create jobs in these communities. That a fighter plane may or may not come out the other end is only nominally important, the key is to spend the money. The mo…

>> the political incentives need to be fundamentally re-aligned. Being the first president to announce the detection of an extraterrestrial intelligence would be a big deal. Clinton certainly jumped on the mic pretty fast when we thought life had been found on mars. Such possibilities could provide the political motivation to keep the next giant telescope funded.

It's an incentive to keep things going for up to eight years -- arguably only four.

"This needs maintenance or it'll collapse in five years" has little political weight if your term ends in four years.

Re: Arecibo Observatory Collapsed

#134
post #116

Earlier quoted context omitted.

I wish we could just simply hand the money over and skip the part where we create the demand for eternal wars and the killing and maiming of millions of people.

The wind gently whispers: socialism.

More like a UBI. Or extended social security.

Socialism's more about the community owning and managing the means of production, and less about just giving people money. You could make a good case that the F-35 program, with all its bloat and cost overruns and inefficient distribution of funds by congressional district, is typical of a socialist jobs program -- granted, the F-35 also has a layer of capitalist shareholders parasitically skimming off the top, but if that were removed, the political pressures that result in the inefficiencies would remain.

Re: Arecibo Observatory Collapsed

#135
post #38

Earlier quoted context omitted.

The problem (partly) is that the F-35 program puts money into 307 congressional districts in 45 states [1]. These insanely expensive defense projects are wealth transfer programs that make contractors like Lockheed and their many sub-contractors rich, and also create jobs in these communities. That a fighter plane may or may not come out the other end is only nominally important, the key is to spend the money. The mo…

Perhaps Lockheed should make a telescope that’s so big, it spans 45 States?

How spread out can the receivers in a Very Very Large Array be? My understanding is that with radiotelescopy they can be widely dispersed, but I'm far from an expert.

Really, you just need manufacturing/contractors in many places. This part built in Pennsylvania, that one in Michigan.

Re: Arecibo Observatory Collapsed

#137
post #39

So planetary defense relies solely on a few 1m telescopes. Interesting. Maybe the "Dish" (Australia) also. The two remaining big ones, the chinese and the russian cannot do that. https://en.wikipedia.org/wiki/Asteroid_impact_avoidance The remaining bigs: * https://en.wikipedia.org/wiki/Five-hundred-meter_Aperture_Sp... * https://en.wikipedia.org/wiki/RATAN-600

None of those large radio telescopes were ever really in the game of detecting near earth asteroids. For that large optical survey telescopes, such as PTF, ZTF, PanSTARRS and the future LSST (and many more) are much more important.

However for accurately measuring their position and velocity in 3D space radar measurements are extremely helpful (since they give you distance and radial velocity which those surveys can't give you). And for that Arecibo was quite a good tool in the toolbox, but not the only one. And the other telescopes used for this are in the 25m to 100m range (the Goldstone solar system radar has a 75m dish and 500kW X-band transmitter). In addition one doesn't have to use the same dish as transmitter and receiver (as long as both telescopes can observe the object at the same time obviously).

Re: Arecibo Observatory Collapsed

#138

Before and after picture from the same account: https://twitter.com/DeborahTiempo/status/1333747356605571072

And just posted… pictures of the destroyed reflector dish: https://twitter.com/DeborahTiempo/status/1333806230125604867

Wow. At least one of the concrete towers appears to have completely snapped off at the last step from the top.

Re: Arecibo Observatory Collapsed

#139
post #38

Earlier quoted context omitted.

The problem (partly) is that the F-35 program puts money into 307 congressional districts in 45 states [1]. These insanely expensive defense projects are wealth transfer programs that make contractors like Lockheed and their many sub-contractors rich, and also create jobs in these communities. That a fighter plane may or may not come out the other end is only nominally important, the key is to spend the money. The mo…

I've begun imagining that for Defense spending, government money that's spent in a State must have come from that State's federal income taxes. I'm exhausted seeing data that indicates that states like mine put in more money than they get from the Federal government, and watching people from states that receive more than they put in talk about welfare state, wealth redistribution, etc.

Yeah, 100% agree, and I wish they'd do it for everything.

My state is in the same boat, and I don't mind the taxes, but if the states getting it are going to whine about it, I don't want to force them to take it...

Re: Arecibo Observatory Collapsed

#140
post #8

A sad moment. Of course it didn't come surprising after recent news, still it is painful to see it collapse. Obviously, the funding had shifted to other projects some time ago or it had not fallen in disrepair. This probably means, the scientific output was less promising than those projects. Yet, beyond its immediate use, it was one of the very visible symbols of science and it hurts to see it go. I wonder whether t…

> This probably means, the scientific output was less promising than those projects.

No, it means that funding prioritization is completely screwed up. Arecibo was a world-class instrument. The next largest radar telescope isn't even one-tenth as powerful. This is a giant loss and a colossal screw-up of prioritization. Building something new costs a lot more than maintaining an existing installation (they were only spending single digits millions per year on Arecibo -- nothing). And they couldn't even come up with that.

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