Actually, the key thing for them is "cheap". They need to keep costing sub-$1k missiles in the ballpark of these Iron dome systems - the more, the better. They might as well just omit the warheads to save money and increase range. Every $50k shot Israel fires with those systems costs 25 Israelis' annual tax contribution to the IDF. Every $55m system they deploy costs 27.500 Israelis' IDF tax contributions.

Palestinians are poor, but they're not *that* poor that they can't leverage those kind of lopsided financial ratios.

I can't help but picture a sign on the door at the exit of an airport in Israel. It reads "Thank-you for not stirring up ancient inter-tribal conflict".

Now I can't help but think of this excellent video :)

Using a nuclear device at high altitude? You do know what happens if you do that, right? That one test bomb knocked out street lights and long distance phone service nearly 1000 miles away and took out a third of all satellites in orbit around Earth at that point in time.

No, in the case of Iron Dome, that's only PR too. They're shooting $50k+ missiles at $800 rockets. Even after factoring in that Israel's per-capita GDP is 20 times that of Palestine's, that's still a losing proposition, even *if* they had a 100% hit rate (which this article is suggesting it's anything-but) and assuming that you get the launcher, radar, etc for free instead of the actual $55 million per unit. It's in Palestine's best interests that Israel deploy as many of them as possible and try to shoot down every last rocket, because every shekel they spend on Iron Domes and missiles is a shekel they don't spend on jets, tanks, and bombs.

You're right. You're definitely on to something there. And while we're making sure that a professional real estate photographer with his reputation on the line is not to be trusted with a three and a half pound quadcopter, we should be even MORE restrictive of the OTHER dangerous stuff that's moving around our homes and communities. Like, pre-occupied 19 year olds driving cars. Like large dogs on cheap leashes. Like idiots on mountain bikes hopping curbs and cutting through read lights. Definitely start with the Evil Drones, but please don't stop there! There are so many dangers! Oh, definitely don't forget steak knives and riding lawnmowers.

Never mind the tiny number of people shooting a few real estate stills from treetop level. How do you know that the many, many thousands of people who are flying around for fun are being safe? But the FAA (so far) is honoring congress's mandate that hobbyists be left alone, even though they just said that hobbyists flying FPV style are no longer allowed. Regardless, the hobby drone market has hundreds of thousands of customers. There might be a few hundred people shooting real estate. Can you explain why you think it's a good thing to hurt them, but not to care about all sorts of reckless hobby newbies (just search on YouTube)? Please be specific.

How do you know that your neighor, who just had a ready-to-fly quad dropped off by UPS and who's in the air 30 minutes later, is safe? Really. How do you know? And why do you think that people who are doing it professionally, with their businesses and reputations on the line, are more dangerous than a 12 year old kid next door who's on his third quad having crashed the first two in spectacular fashion? How do you know? Please be specific. Because the FAA thinkks the 12 year old kid is fine, but the person who takes great care to avoid endangering their real estate business liability coverage while shooting the occasional photo should be stopped. An odd thing for you to support.

If we ever learn to design new genes and proteins quickly, there are a bunch of starter projects:

Give mold the ability to synthesize CBD and THC. It would motivate you to wash your dishes- so you can use a razor blade to scrape off a gooey film of cannabinoids from the slimy ceramic in your sink, puff away, develop the munchies again, refill the sink with dirty dishes, and complete the cycle.

Insert a couple genes into E Coli that can synthesize cannabinoids in your intestines, so you can get a buzz after eating regular brownies.

Give cows a few genes for synthesis of cannabinoids during lactation. THC milk would also go great with regular brownies.

Design a virus that invades the human nervous system and inserts genes into white matter cells to induce synthesis of Adderall.

Engineer mosquitos that have the ability to synthesize heroin.

Make puncturevines that synthesize injectable human vaccines for measles, mumps, pertussis, polio, flu, rubella. and accumulate them in those tack-shaped goathead seeds. Plant them near people who think vaccines cause autism. Also include genes for synthesizing tire sealant, so their needles stop blowing out my bike tires when they reach the curb.

Give chili peppers the ability to synthesize and retain methamphetamine. Pulverize them and you can get meth with that "Chili P signature" like Jesse was selling in the first episode of Breaking Bad.

Create bees that can successfully avoid any areas tainted with anything manufactured by Bayer.

Resurrect DNA from extinct giant bird Palagornis sandersi but modify the legs a little so that the birds can hold bombs and chemical weapons.

Design trees that grow both apples and oranges, so we can finally compare them.

They should insert the THC gene into mold spores. It would motivate you to empty the sink so you can scrape the scum off the ceramic with a razor blade and roll it into a joint.

If by that you mean that clearly written words in the English language have no actual meaning, then sure, I guess. If you mean that the Constitution, and the countless supporting documents and correspondence written to, between and about its authors and the large groups of representatives that agreed on its purpose and amendments to it were just setting us with something that had no actual meaning, then sure. But that's BS, and you know it.

The Constitution makes no such distinctions between one tool and the next. But of course the people who wrote it were very clear that there were some tools that some people would - given a period of power in the congress - try to deny to the public, and so they added amendment that explicitly reminded the government that it cannot act in those areas. The Constitution is built around the concept that the government's powers over what you may or may not do it inherently limited to the things that are enumerated therein, and generally prohibited otherwise, with the states having all such other authority. This isn't a matter of "perspective," and it isn't true for certain tools, and false for other tools. If you think that "drones" (but not, say, chain saws) should be singled out for capricious bans by the federal government despite laws recently passed by the congress explicitly to the contrary, then you're completely missing the point.

Semantic games like that show how completely unserious you are.

A matter decided upon, legislatively. at the municipal, county, and (rarely) state level. Not by capricious extra-legal, counter-constitutional fiat from a political appointee of the White House, as in the case at hand.

I'm not going to bother with genetic engineering. I'm going to get a 3D printer, download THC.sdl and CBD.sdl, and print my own cannabinoids.

Which reminds me I also have to print a new bong because this one is starting to smell like yeast.

Because the FAA, by federal statute (passed by congress, which is made up of representatives of all of the states), is granted that regulatory authority. There is legal precedence for their authority over everything that flies in the air, right down to an inch above the ground. Which doesn't mean that their position on this stuff isn't incredibly absurd. But it's their turf.

Why should the FAA, which is part of the Obama administration, feel any urge whatsoever to enforce or obey laws passed by congress? We have ample precedent of him using the pen and phone about which he so regularly boasts to simply do what he wants anyway, even in direct contradiction of plain language in the laws he swore to uphold. Any expectation that the chief executive of the administration will be asking his immediate (appointed, by him) subordinate (the Secretary of Transportation) to instruct HIS subordinate (Huerta, the director of the FAA) to actually comply with the law, is laughable. The administration takes laws (like their own favorite, the ACA), and completely ignores hard-wired dates and other requirements as it suits them for political leverage with the portion of the voters to whom they pander. Happily, that particular instance is about to be challenged in a civil suit coming out of congress - that's very good news.

We just need another suit, along the same lines, requiring the administration's law breaking at the agency level in the FAA to be discussed in the bright sunshine of court. Something you'd think that the "most transparent administration in history" would applaud, right? Yeah.

You have your entire concept of liberty, and of the constitution, exactly backwards.

Should every new concept, innovation, invention, tool, technique, strategy, and technology be prohibited by default? What the hell is wrong with you? If I come up with a clever new way of slicing deli meat, should I be prohibited from using it or showing someone else how to use it until I've sufficiently begged an un-elected, un-accountable agency bureaucrat to allow me to use it?

And in the case at hand, picture two people standing right next to each other. Each has their hands on the controls of a 4-pound plastic quadcopter carrying a GoPro. Each takes off, sends the little machine up to 45 feet above the same house. Each of them use the device to record the condition of the houses's gutters, sparing somebody a couple hours of putting up a dangerous extension ladder a dozen times. Each of them get the job done in minutes, and land their little quad back down in the driveway right next to each other. You think that one of those two people should be banned from what the both just did, but the other should not. Why? Be very specific.

... the greater your capacity, the less cycle life matters. If you want an EV that battery that will run a 250Wh/mi vehicle for an average 20 miles a day for 15 years, then you want it to cycle through about 30MWh. If you use a 100 mile (25kWh) battery pack, then that's 1100 cycles. If you use a 200 mile (50kWh) battery pack, then that's 550 cycles. If you use a 400 mile (100kWh) battery pack, then that's a mere 275 cycles. Actually, the improvement is even better than that in the real world, because the greater your capacity vs. how far you're actually driving, the more you can cycle the cells through a less destructive state of charge range rather than doing deep discharges.

A lot of people picture battery packs in EVs backwards, they think that things like hybrids stress the packs the least, PHEVs moderately, and EVs the worst. But it's reversed. If you look at how big hybrid packs are vs. how much electric range they hold, you'll see that they're disproportionately large, even after you factor in any differences in Wh/kg. The reason is that because hybrid packs get cycled so much, they have to keep the cycling in a very narrow state of charge range, only allowing shallow discharges. So if you only have a narrow discharge range, you have to make your pack bigger to make up for it. EVs can discharge through much more of their pack because they need fewer total cycles and only rarely go down toward the lower end of their allowable discharge range. Some EVs also let you limit the max that your pack charges up to to further extend lifespan (it's usually destructive both to use the very top end and the bottom end of the discharge range).

1024 mAhg1 is excellent capacity even vs. brand new graphite or amorphous carbon, about 3x as much as graphite's maximum. Silicon's theoretical max is 8-10x that of graphite, but the main problem with it is durability, it tends to tear itself apart on loading. There are silicon anodes in some newer li-ion cells on the market, but the tech is in its infancy.

That said, the real papers you want to be on the lookout for are cathode improvements, there's a lot more potential for volume/mass reduction there than in the anode. But it seems to be a more difficult challenge. Getting a 3x improvement in anode density is absolutely not the same a getting a 3x improvement in battery life.