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Comment Re:In the internet no knows you are a dog. (Score 1) 122

That may apply in most cases. However, a degree is now acting as a barrier for entry to jobs people are fully qualified for.

I have seen government contractors hired with a BS in Art History and a CCNA over candidates with HS diploma and a CCNP. It's happening more and more to those of us who just want to ride routers all day. We know the job and lack of a degree should be seen as a good thing. We aren't looking to replace our bosses. We don't want to become managers or team leads or any of that crap. We just want to sit in darkness and work on network stability and optimization.

I'm sure you can find the same thing in CS. People who know how to code, but lack a degree for whatever reason. You'll pass over a candidate who's been programming since age 8 and select a candidate who first heard of programming in his Intro to Computers class.

Comment Re:Stop buying gear without lifetime warentee (Score 1) 156

I sometimes look at things like power and water and wonder what could be done with a ground-up redesign.

As for networking, the guy was talking about a 6500 series switch. Anyone buying a 6500 would probably get 2 or 3 and use something like HSRP or the like:

That way, uptime of a single node (probably in the high 90% range) isn't so important. As long as you have one other node operational, then the network isn't aware that anything has gone wrong.

If a water pipe could detect a pressure drop and trigger a set of valves, then you might be able to continue service while only affecting spurs coming off the damaged section.

Comment Re:Tough (Score 1) 159

It wouldn't be that bad.

Have a 360Â servo with a 80Â-90Â servo mounted on it. Directional mic on top of all that.

Arduino/Pi rotates the first servo 1Â then sweeps the second servo. Or vice versa.

Feed that into an algorithm looking for prop noise. Most drone motors will be IC or electric. An IC will be running between 9K~18K RPM. Electric would be running from 7K on the low end to 30K on the high end. Realistically, an electric for drone use would be on the low end of that spectrum; the higher-RPM motors are usually for fast airplane.

Take the RPM and figure a 2-bladed or possibly a 3-bladed prop. Filter bandpass for 15K~55K. Run that through a doppler-shift algorithm and filter out anything moving slower than 20MPH or faster than 200MPH.

Using that, you should get pretty close.

Once you have the location, feed that to another mount with a spotter-scope and webcam. If the image-detection stuff sees something other than sky or clouds, have it snap a few images and SMS/email them to you.

I'm not entirely sure you will get good enough images to identify the specific UAV using servos programmed for Â. The servos usually range from 900-2100ms of pulse width with 1500 being "centered" on the servo. So, you can get it down to 3-steps per  on a 360 servo and 13-steps on a 90 servo if you use straight PWM and good digital servos.

Comment Re:Safe guns (Score 1) 1013

Very few Soldiers, Sailors, Airmen, and Marines will handle a weapon on a daily basis. In a home-station environment, you will have the base security people (maybe 200 people at any one time) actually carrying a loaded weapon. You may have another 100 or so training with dummy/unloaded/blank-modified weapons each week.

The thing that no one ever wants to talk about is that the US Military is just a sample of lower-income Americans. We have thieves, rapists, alcoholics (oh god at the alcoholics), drug addicts, murderers, etc. We keep things locked up because we know we are crazy. Or at least we suspect the next guy is...

Oh, WRT psych evals, there are some, but not nearly enough. Recruiters and basic trainers want to meet quotas. It's in their best interest to pass as many through as possible. Once a (possibly crazy) troop arrives at their post, they are usually kept in-line or hidden by their front-line supervisors. It sometimes seems like the quickest way to get rid of a bad seed is just to wait for their enlistment to end...

Comment Re:Bullshit. (Score 1) 164

A123 had other problems as well. The batteries they produced were worse than other Lithium batteries in almost every way. Heavier, lower energy density, fewer cycles, etc... Their only advantages was that they could be charged quickly and they kinda resembled (but weren't interchangable) batteries people were used to seeing at the supermarket.

As LiPo batteries evolved, they were able to charge more quickly and their energy density has gone through the roof.

Comment Re:Drones? (Score 5, Informative) 219

Combined Air Operations Center. They'll know. One agency monitoring everything including, but not limited to, commercial airliners, military flights, private planes, U(C)AVs, and even (in some cases) model airplanes and rockets.

Now, as to if the CAOC would tell Reuters anything other than the time of day, that's anyone's guess.

Comment Re:Why not fix it immediately? (Score 2) 73

>>the developer releases a general security update that applies to everyone, you'd be fine with your host disabling essentially your entire site until you fixed it?

It all depends on the TOS from the host. Maybe the host declares that they disable clients that are contributing to (or may contribute to) network abuse. Unpatched machines will get compromised and become launchpads for attacks on others.

>>And if you're on vacation for a week or two when it happens? What then?

Would you rather come back from vacation to a disabled but uncompromised site, or to a enabled but compromised site? For the first case, you'd need to apply the updates and then restart the server. For the second case, you'd need to scrub the machine, re-install all your software and customizations, then restore your databases and content directories from backup.

>>I rather like the fact that the stuff I run can essentially sustain itself in my absence.

The point is, it can't. You can't secure a box and walk away for days/weeks/months. You need to be actively maintaining your servers.

Comment Re:Computer needed to change headlamp on 07 Dodge (Score 2) 238

All you need to do is pull the negative battery cable and the onboard systems will reset. You'll lose the radio programming, and any other onboard counters (like oil or tire pressure) will be reset.

It's a PITA, but we've been doing that on oil changes for decades now. If you change your own oil, you'll need to swing by Advance or Autozone (or NAPA for their "know how") to get the "Maint Reqd" light to go off.

Or just pull the battery cables.

Comment Re:No, it'll just be an OPTION (Score 5, Insightful) 650

I don't think that will be an option for a *long* time. As it stands now, if you are close to your car (and have your keys on you) you can be charged with DUI/DWI. The cops argue that you are technically in-control of your car any time you are near it.

I've seen two DUI busts while people were sitting in a non-running car listening to music. I've seen one for someone who went to get something out of the car without ever sitting inside or turning the ignition.

And as long as we have MADD, it'll be hard to change. They will always come back with "what ifs" and TOTC and lawmakers will roll over.

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