Completely agree. As a child, I learned a good deal about chemistry and explosives through DIY activities. Those childhood lessons (nobody got hurt) have gotten me some good jobs at major aerospace companies and at a space startup. A kid doing today what I did back when would be instantly jailed and put on the terr'ist list forever. Hell, I fear what would happen if DHS were to find my oxy/acetylene welding set in my home shop. Our increasingly Draconian restrictions are fencing off ever more sources of inspiration and creativity.
It is that. I've seen it stick to Teflon and graphite components. It coats glass and silicon wafers with a nice mirror surface.
Lowest melting nontoxic liquid metal I've heard of is Galinstan, a eutectic alloy of gallium, indium, and tin, melts around -19C. http://en.wikipedia.org/wiki/Galinstan
I've not looked into the technical details of GGlass. Is it susceptible to jamming? Might it be feasible to carry a wifi/BlueTooth jammer on my person that would inhibit GG's recording functions? If so, KickStarter, anyone? Or has it already been done?
Yeah. One wonders what dreams these people have that are being blocked by the government.
Mr. Musk is doing good work in establishing commercial access to space and giving us a new choice in cars. SpaceX has a $1+Billion ISS supply contract from NASA (Government), and Tesla accepted and paid back a roughly half-billion dollar loan *from the government* that was extremely helpful in establishing the company's manufacturing operations. Seems to me that in Mr. Musk's case, the government has been a facilitator of his dreams.
I'm less familiar with Messrs. Thiel and Page's histories, but it would not surprise me to learn that government made a direct contribution to each of their businesses at some point along the way. It certainly contributed indirectly through providing infrastructure like commercial laws and the courts to enforce them, facilitating an educated and healthy population from which they could recruit workers, and on and on.
but still pretty cool.
In the video, the aircraft seemed to fly level at an altitude no higher than its wingspan. This would have been in the ground effect flight regime, in which fixed wing aircraft have a bit more lift and less drag than at higher altitudes. Takes less power to fly in ground effect.
I thought this was an interesting take on Bitcoin:
Great trailer, looking forward to the film's release.
And if we would just get rid of that pesky presumption of innocence thing, we'd sure imprison more criminals. That would be a good outcome, purchased at far too high a price.
In this case, the defendant sure looks like he's guilty. Doesn't matter. If the government didn't follow the law, he should walk.
It sucks when we occasionally let defendants go free who are quite obviously guilty, just because somebody screwed up an evidentiary chain of custody, or was too loosey-goosey about getting a confession through enhanced interrogation, or collected evidence illegally, or whatever breach of due process happened because somebody was lazy/corrupt/just plain human. But we have to do it.
When the government charges an individual with a crime, it's a proceeding by an entity of comparatively infinite power against an individual. It's good that the government has to follow rules exactly in this process. This good thing that we have costs a lot from time to time, and it's worth it.
Great link, thank you.
"Why? Nobody else does." - I believe that's accurate and problematic. Hard to make good decisions if costs of alternatives are obfuscated. We need to fix this by looking for realistic energy accounting when we're evaluating any energy source technology.
"It takes a lot of work to turn a breakthrough into a commodity." Agreed. And I'd keep funding NIF under this rationale alone.
OK, I'll admit to temporary curmudgeonly-ness, or however it might be better expressed. Even if it never puts a watt on the grid, I value the physics and engineering we're uncovering in the fusion program. And the money is not much more than a roundoff error in our national budget. If I had to choose between the ACA and NIF, I'd pick the former. If I had to choose between NIF and the salaries of our delegates to Congress...well, I'd fund additional NIF studies to see what happens when we substitute a member of Congress for the hohlraum....
Maybe because it isn't actually significant. "Breakeven", IIRC, is most commonly understood to mean that the fusion reaction put out more energy than was used to initiate it.But if you're going to be commercially honest about the energy accounting, you need to consider all the energy you used - the 'wallplug' efficiency, as most laser folks would say.
But LLL wants to sell this as a milestone because it yielded more energy *than the target absorbed*. Two way different criteria. LLL's milestone, while of academic interest and doubtless an engineering tour de force, provides no encouragement for commercial use of this technology.
I looked at the company's web site. The technology description indicates that the sensor is a coplanar parallel pair of tiny hot wire anemometer elements located very close together. This structure measures the component of air velocity that is across the wire pair, in the wire pair's plane. Three of these sensors, mounted so they're mutually orthogonal (one each in the XY, XZ, and YZ planes) give the full vector field for air velocity. There is another co-located sensor that gives the pressure (intensity). So one small sensor assembly (about the size of a big kitchen match head) gives high accuracy directional information and time series pressure data. This data set contains everything needed to locate and record a sound source.
Posting AC because I moderated.
Single payer is what we need, and is what most other developed nations have made work well, but it's completely impossible to implement in the United States at this time. Obamacare, the ACA, whatever you want to call it, is at least a substantive step in the right direction. Incremental, imperfect progress beats waiting for the perfect solution we won't get to for a couple of decades.
Isn't this practice pretty much de facto "tying", which is illegal under the Sherman Antitrust Act and the Clayton Act? I mean, if the company blocks non-Apple cables, isn't that awfully close to the "mandatory purchase" scenario that those two laws prohibit? Any lawyers care to opine?