This actually makes me nervous. Given the unbroken track record of Slashdot mistaking the market share for every major advance in technology since the iPod, I'm forced to believe that smart watches are going to be a hit.

And I'm not sure I want to live in that world.

The newer membranes need quite a lot less pressure than early versions (which is where the energy requirement was). That and membrane longevity has improved considerably. As is typical with high tech stuff, the costs come down and the quality improves over time.

Or just plain ol activated charcoal. My sailboat has an RO system with a charcoal canister that I replace twice a year. Bigger systems have more complex pre filters. I'm sure that the system in TFA is at least cleaner than any river water or shallow well system. Possibly not as pure as a deep artesian system but if it passes EPA criteria, it's going to be pretty clean.

Really Slashdot, RO systems are old hat. You can buy them on Ebay. Soon they'll be in breakfast cereal.

Here's the promotional video from Rafael, the system's maker. If the Iron Dome launchers are in a position to hit incoming rockets when they're still in boost phase, they're clearly effective. When they hit, the ascending rocket's flare disappears. Israel has Iron Dome launchers both forward postioned near Gaza, for boost phase defense, and near cities, for terminal defense. For terminal defense, it's harder to tell if they worked. The incoming rockets are just falling at that point, and success requires blowing up their warhead, not their rocket engine.

Videos show the missile's warhead exploding. That's triggered by a proximity fuse. There's a spray of shrapnel from the warhead; it doesn't have to be a direct hit. Whether that sets off the incoming rocket's warhead isn't visible from the videos of terminal defense.The Patriot missiles used in the Gulf war were able to hit incoming Scud missiles, but often didn't detonate the warhead.

You don't expect a critical appraisal from the vendor, do you? Take his, and everyone else's reporting with some degree of skepticism.

One notable fact that was tangentially mentioned is that one doesn't see any 'hits' in the media. I would think one would be able to see the effect of the missile intercepting the targets at least some of the time. Given the intense media coverage, one wonders. It's certainly possible that by the time the interceptor hits the target it's too small to visual, but there is one hell of a lot of energy involved. Kinetic energy often creates sparkly bits that can be seen.

It is also hard to argue that this ISN'T just one more aspect of the public relations game that is endemic to this conflict. Both sides (as is pointed out in TFA) engage in trying to get the other side to look mean and nasty. It's way more complicated than that.

Nadella used to run Bing. Did anything change there while he was in charge?

It's Bush's fault.

Please run for Congress....

Please don't say things like that. You might give them an idea (they won't think of them on their own). Godzilla was created under less extreme circumstances.

Wow.

You're good.

Read Kim Stanley Robinson's Mars Trilogy for why this won't ever happen.

Marconi already had VLF working, sort of, before Wardenclyffe was built. Marconi's R&D approach was to transmit across short distances, test and improve the hardware, then try longer distances. Over a few years, he slowly worked up from across the room to across the ocean. Less grandiose than Tesla, but more successful.

Tesla is said to have assisted in the construction of the 1913 Telefunken VLF station on Long Island, but the IRE Journal article doesn't mention him. Telefunken built a VLF antenna much the way one would be built today - a simple guyed tower resting on an insulator base, with wires spreading outward to a circle of poles. They only used 35KW, instead of Tesla's 200KW. The station communicated with a similar station in Germany.

Burma Shave.