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Comment Re:Looking for a Job (Score 1) 70

Is it just me, or does this sound like an ambitious Law Professor looking for a new job as head of a newly minted agency?

Exactly the feeling I got. We don't even have an Federal Internet Commission, and don't seem to need one.

We do need to have the Consumer Product Safety Commission setting safety standards for the Internet of Things. They're properly the lead agency of safety issues. That will probably happen after the first few deaths due to cloud-based control of home devices.

Comment Re:Virtual Desktops (Workspaces) (Score 2) 545

Aside from price, which makes accepting multiple monitors rather compelling(you can get physically big ones for relatively small amounts of money, because of TVs; but if you want resolution the cost goes up fast and things really start to misbehave if you go high enough that DP MST or the like is required to drive the thing), it mostly comes down to how good your windowing system is at tiling and how well applications that expect 'full screen' can handle playing with others.

A good window manager makes carving up a single large monitor into chunks suitably sized for your various programs easy and painless. If you are enduring a less obliging one, it can be a fairly ugly business, actually less pleasant than getting some help from multiple physical displays, which are more widely respected even by poorly behaved programs.

That said, the 'two side by side, giant bezel in the middle' configuration is not my favorite. A larger primary screen, with ancillary screens on one or both sides gives you plenty of room for assorted lesser windows; but also avoids annoying bezels in the center of your field of view.

Comment Re:Virtual Desktops (Workspaces) (Score 4, Insightful) 545

You don't choose between workspaces and physical screens, you just have multiple physical screens so that each workspace can be even larger and more pleasant to use...

You do eventually run into diminishing returns; but being able to display more than one monitor worth of stuff simultaneously definitely has its uses, and is something that being able to switch between workspaces, be the transition ever so elegant, cannot replace.

Comment Re:The real test? (Score 1) 545

Given that 8 was the "Just because it's called 'Windows' doesn't mean it needs a functional windowing system!" release, It's pretty hard to argue with them.

Maybe some of that works on touchscreen laptops; but 'metro' is a tragicomedy on any monitor configuration worth using.

Comment Re:Of course you use force control to run fast. (Score 2) 90

Pardon my ignorant question, but how is it a problem to have traction control? Wouldn't it be enough to glue traction strips to the feet or something?

That's like wearing shoes with golf spikes all the time.

Traction control for feet does roughly the same thing as automotive traction control for cars. The basic idea is to keep the sideways force below the break-loose point. This is the down force on the wheel times the coefficient of friction.

For car wheels, the down force is mostly constant. For a legged robot, it changes throughout the ground contact phase So the side force has to be actively controlled and changed throughout the ground contact. It's also necessary to compensate for leg angle.

Legs have an additional option. If a leg has three joints, you can adjust the angle at which the contact force is applied. This is a big win on hills.

I used to work on this stuff in the mid-1990s, but nobody was interested in building legged robots back then. It could be used for animation, but it was overkill for games. I never expected that DARPA would spend $120 million on BigDog. Robotics projects in the 1990s were tiny.

Comment Re: Car Dealers should ask why they're being bypas (Score 1) 155

In addition, Tesla(whether or not you see this as an improvement is a distinct issue, it simply is so) sells cars much more like an enterprise IT hardware vendor sells hardware: at least within the warranty period, there is very much an ongoing interaction between the hardware and the vendor. System health information gets sent directly back, on site techs with specialized parts and firmware get sent out and so on. More traditional car companies are closer to buying a PC: the dealer will offer (often absurdly priced; but available) maintenance; and the vendor may become involved with certain warranty or recall cases; but they are otherwise largely out of the loop, with third parties handling the ongoing interaction with the hardware.

Comment Of course you use force control to run fast. (Score 5, Insightful) 90

That article is written as if that crowd invented running using force control. Of course you use force control. Everybody in the field knows that by now. I patented that 20 years ago. The Scout II robot at McGill, developed by Prof. Martin Buehler, used that approach. Buehler went on to become the designer of BigDog, but never got much public credit for it and quit to work for iRobot.

The key to legged running in non-trivial situations is careful management of ground traction. Traction is first priority, then balance, then foot placement. Historically, everybody worried about foot placement first, but that turns out to be backwards. As soon as you get off flat surfaces with good traction, traction control dominates.

The next unsolved problem in that area is not going fast. It's starting, stopping, and turning fast. Most of the legged robots accelerate very slowly, and don't make abrupt high-speed turns. Big Dog starts by trotting in place, then extending the gait out. Starting fast, stopping fast, and turning fast are all facets of the same problem. You have to take one stride using completely different control algorithms than you use for normal locomotion. That's all I'm going to say about this for now.

Comment Re:Not much different than the fire starting laser (Score 1) 180

How is blinding someone with a laser worse than killing or maiming them with a bullet?

The assorted 'laws of war' are heavily leavened by what their framers suspect that they can actually get at least some people to agree to; but the overall theoretical foundation always seems to be an attempt to steer weapons in the direction of "Kills outright, or leaves a wound that, if treated, will heal with comparatively limited permanent damage."

It's not an easy standard to maintain(both in terms of convenience, mass-maiming is a hell of a shock to morale and logistics, and engineering, something that will kill if it hits you as designed will likely cause serious tissue damage and/or amputation if it scores a sub-par hit); but it's not really a terribly strange shared desire, from the perspective of the warring European powers of the 20th century that wrote most of them.

Comment As a layman... (Score 2) 106

I'm fairly out of my depth with this stuff, so this is an honest inquiry: how do the magnetic nanoparticles fit into the equation?

I realize that, once coated with a suitably tailored binding protein, the particles will collect whatever target the binding protein was specified for (presumably this could even be tailored, for any target where a suitably tame binding compound is available), and probably fairly efficiently because of the absurd surface area of nanoparticles.

What I don't understand is the necessity of using the nanoparticles. It was my understanding that, outside of seriously immunocompromised victims, T-cells(and possibly other flavors of phagocytes, I'm fuzzy on the details) are extremely adept at engulfing and destroying foreign bodies, including 'clumps' produced by targets bound to the antigens produced by B-cells. This technique appears to be using a synthetic/introduced antigen(which makes sense if the immune system isn't producing the necessary antigen, or not ramping up production fast enough); but it also introduces the nanoparticles so that the antigen clumps can be magnetically scrubbed from the bloodstream, rather than cleaned up by the T Cells.

What is the peculiarity here that would make introducing the novel clump-scrubbing mechanism necessary and worthwhile?

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