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Comment: No-fly zones are already enforced on DJI phantoms (Score 3, Informative) 90

by jcam2 (#48974327) Attached to: Hundreds Apply For FAA Drone Licenses

This no-fly zone feature has been around for quite a while on their high-end models, to prevent users flying over an airport - see http://www.dji.com/fly-safe/ca...

Also, last time I checked the firmware update process involved connecting the quadcopter to a PC via a USB cable, so it's not like new rules are being applied without the user knowing.

Comment: Sharx (Score 3, Informative) 263

The Sharx brand cameras are expensive (~$280) but have many great capabilities built in, including dumping to a NAS and motion alerts with emailed snapshots. I've run them in some capacity for over five years with no trouble. My only complaint other than price is that the UI is not always very self-explanatory, and they refuse to post PDF manuals on their site, so don't lose the (extensive) paper manual.

Comment: Re:A sense of scale (Score 1) 24

by Carnildo (#48937135) Attached to: Spire Plans To Use Tiny Satellites For More Accurate Weather Forecasts

Somebody is certainly missing a sense of scale.

Traditional Earth observation is done using a small number of satellites at a large distance, traditionally in geostationary orbit (35,786 km away). Using a large number of satellites in low orbit (300 km away), you can use low-power transmitters and commodity cameras. Sure, without cooling, you lose the thermal IR range, but in return you gain a great deal of resolution in the other bands.

Comment: Re: Relays, not exit nodes (Score 1) 80

by Carnildo (#48937027) Attached to: Mozilla Dusts Off Old Servers, Lights Up Tor Relays

Let me ask you this, since you obviously didn't think about it...if Tor is so good at protecting privacy and traffic, how does the DoJ know what percentage of ANYTHING is going through it?

That's easy: you set up an exit node and watch the traffic going by.

Tor only promises to protect the data as it travels between your computer and the exit node. If you want protection after that, you'd better use SSL.

Comment: Re:I actually warned the FBI... (Score 3, Informative) 110

by Carnildo (#48835755) Attached to: To Avoid Detection, Terrorists Made Messages Seem Like Spam

You alerted them to actual spam.

The purpose of the suffix was to evade simple subject-line spam filters, while the "word salad" was an effort to evade word-classifier spam filters by drowning out the "spam-like" words with "non-spam" words, or to poison the classifiers and render them useless by loading up the "spam" wordlists with words that usually appear in non-spam messages.

Comment: Re:I've got an idea !! (Score 2) 248

by Carnildo (#48835663) Attached to: SpaceX Landing Attempt Video Released

Parachutes don't have the accuracy needed to land on a barge, and splashing down in the ocean means complete disassembly to get the residual salt off all the parts.

The Shuttle SRBs could do parachute recovery with ocean splashdown because they consisted of a small number of very large parts, and needed pressure-washing to get the fuel residue off anyway. Taking a liquid-fuel rocket apart is a much harder task.

Comment: Re:More US workers == offshoring?? (Score 2) 484

by jcam2 (#48816977) Attached to: IEEE: New H-1B Bill Will "Help Destroy" US Tech Workforce

As someone who works at a company that has branches all over the world (including India) and employs people from all of the world, I've never seen this happen. Instead everyone who comes over on an H1B starts their green card application process as soon as they can, with the aim of staying in the US permanently.

Have slashdot commenters ranting about H1Bs ever actually worked at a tech company? Or tried to hire someone in tech recently? The idea that there is some huge untapped pool of US workers that are being ignored is simply bullshit - demand is so great currently (at least in Silicon valley) that its damn near impossible to hire anyone decent from anywhere.

Comment: More US workers == offshoring?? (Score 4, Insightful) 484

by jcam2 (#48815777) Attached to: IEEE: New H-1B Bill Will "Help Destroy" US Tech Workforce

Explain to me how allowing more foreign workers to come to the US under H1B visas will increase offshoring? Surely not allowing people to work here is going to cause work to be sent overseas, not the other way around.

Every H1B worker I've met (including myself) wants to get a green card so they can live and work in the US permanently. At which point they are just as much part of the US tech workforce as a citizen who was born and raised here.

Comment: Re:I'm amazed (Score 1) 169

by Carnildo (#48763033) Attached to: How Long Will It Take Streaming To Dominate the Music Business?

from your figures it appears your script is including the theoretical purchase price of music that Pandora chooses to play at you rather than just the musicyou actively selected. I mean it could play something you don't even like or would ever buy but your script would still include the cost.

I've got statistics on that, too. Pandora is 99.65% accurate at picking music I like (by play count), or 98.03% accurate (by track count). Doesn't change the cost by much.

What about the extra hidden cost of your internet connections themselves and the necessary extra bandwidth usage?

The amortized cost of my Internet connection probably doubles the effective cost of Pandora, but even if the entire cost were added, it would still be many times cheaper than the iTunes cost.

Comment: Re:I'm amazed (Score 1) 169

by Carnildo (#48751779) Attached to: How Long Will It Take Streaming To Dominate the Music Business?

1) You can't listen to your music when you dont have an active internet connection.
2) You're basically paying regularly/multiple times to hear the same music you could just pay for/download once.

I've been running a script to track my Pandora activity for almost eight years. According to it, my "collection" of music would cost me somewhere between $22,000 (iTunes) and $150,000 (CDs) if purchased, versus $300 or so for a Pandora subscription.

Yes, purchasing the music would let me play what I want when I want, even in the rare instances that my nearly-always-on Internet connection is down, but it's not worth a 75-fold increase in price.

(21,934 distinct tracks from 11,050 albums by approximately 6,596 artists, for a total of 190,330 tracks played.)

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