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What It Took For SpaceX To Become a Serious Space Company

wagnerrp Re:Blah blah Elon call me when (95 comments)

Considering no one has ever done that, are you saying the last half century of spaceflight has just been amateur hour?

about a week ago
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What It Took For SpaceX To Become a Serious Space Company

wagnerrp Re:Skylon (95 comments)

The real cost of any (liquid fueled) launch is in the vehicle, rather than the fuel. Thus, the ultimate goal of cheap spaceflight is to recover and reuse that launch vehicle. Whether you achieve that with an extremely elaborate multi-mode gas turbine engine on an SSTO spaceplane, or a traditional staged rocket whose boosters abort and return for a powered landing back at the launch facility, you get the same end result. The question simply becomes which one is cheaper to design and maintain.

about a week ago
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What It Took For SpaceX To Become a Serious Space Company

wagnerrp Re:they should get Nasa to use them (95 comments)

At $4,653/kg to LEO it would cost rought 400K to push an average human to LEO

Don't forget your life support and re-entry systems.

about a week ago
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DHS Investigates 24 Potentially Lethal IoT Medical Devices

wagnerrp Re:Well ... duh! (79 comments)

The same goes for my thermostat. And my lights. And my stove. And my freezer. If you're not taking security seriously, I'm not taking your fscking product seriously.

The entire industrial control world is completely indifferent to security. Things like HMI applications may implement user-level restrictions, but ultimately the hardware they interface with is usually just open access over OPC or HTML. This works in general when you're on an isolated industrial network, of course these networks are typically not completely isolated, allowing remote access for maintenance and support. Even when completely isolated, you still have the issue of operators connecting infected hardware to the network, as seen with stuxnet.

The problem with IoT is that the same embedded and controls engineers are just applying the same methodology to this as industrial applications, and assuming someone upstream will handle the security issue. Security is a double edged sword. While it's necessary at some level, it's going to add considerable overhead and latency, and is all but unusable if you intend to do real time control. The isolated, open network is the only sensible approach. Now IoT parts could completely embrace the industrial methodology, and while the typical controls engineer might think nothing of running ethernet or RS-485 drops throughout their home with a central secured gateway for access, the typical consumer user is enamored will all things wireless. On the other hand IoT parts are not doing any form of real time control over their remote interfaces, so there's no reason for them to be externally behaving like industrial hardware, and programmers stuck in that mindset should not be left in charge of building those interfaces.

about a week ago
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Flight Attendants Want Stricter Gadget Rules Reinstated

wagnerrp Re:That's not the reason you're being ignored. (406 comments)

I can't tell if this was supposed to be a joke or not. No one uses backscatter X-ray scanners any longer. It's all millimeter wave these days, and if you're concerned about irradiation from those, you better not go outside. As for groping, well I've not personally been groped by TSA, but then perhaps I'm not so well endowed that I look like I'm carrying a weapon, or otherwise pique the officers' curiosity...

about two weeks ago
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Liking Analog Meters Doesn't Make You a Luddite (Video)

wagnerrp Re:Not analog (155 comments)

Most cars come with analog readouts for speedometers, temperature and gas tanks.

You may be surprised to find out that many of those are now actually digital. The gauges look all old-timey and appear analog but the actual signal being communicated is a digital signal and thus so are the gauges technically speaking.

The video was about hooking analog gauges into the analog outputs available on an Intel dev board. By that logic, they would be digital outputs just the same.

about three weeks ago
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Amazon Robot Picking Challenge 2015

wagnerrp Re:The coming robotic divide (106 comments)

We won't own houses either, banks will own them and make sure that no-one can pay for them.

The amusing thing, often times these distributors don't even own their own warehouses. They have them built and outfitted to their specs, then sell them to and lease them back from an investment firm.

about three weeks ago
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Amazon Robot Picking Challenge 2015

wagnerrp Re:Pay me once, shame on me. (106 comments)

No one who's qualified should ever compete in these, because they're not for people who are qualified. They're for engineering students to get some hands on practical experience, and maybe come up with some novel ideas along the way.

about three weeks ago
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Ebola Vaccine Trials Forcing Tough Choices

wagnerrp Re:funny that.... (178 comments)

I admit, I did not read that far down. The first few paragraphs mention the GSK program to develop one, but was only speaking in generalities about vaccines.

about three weeks ago
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Ebola Vaccine Trials Forcing Tough Choices

wagnerrp Re:funny that.... (178 comments)

There is no vaccine. The article is merely expecting that vaccines will be ready for testing several months, and is questioning how the testing of those vaccines should take place when available.

about three weeks ago
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Ebola Vaccine Trials Forcing Tough Choices

wagnerrp Re:funny that.... (178 comments)

No. The article is about how to do testing of a hypothetical vaccine that has not yet been developed.

about three weeks ago
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Fusion Reactor Concept Could Be Cheaper Than Coal

wagnerrp Re:The $50,000 question... more energy out than in (315 comments)

In the long run, however, I wonder if the arrival of convenient fusion will mark the start of issues with waste heat.

No. Current solar absorption (accounting for albedo) is on the order of 50PW. By comparison, current peak world wide energy production is a paltry few TW. We're several orders of magnitude away from the point where our civilization's thermal output becomes a concern.

about three weeks ago
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Ebola Vaccine Trials Forcing Tough Choices

wagnerrp Re:funny that.... (178 comments)

What vaccine? There is no vaccine? All we have is antiviral drugs that are effectively antibody supplements. In previous outbreaks, people have been cured by receiving blood (and antibodies) from someone who has already successfully fought off the infection. The drugs are basically just an artificially manufactured form of that. You don't run large volume production of an experimental drug for a virus that only has small outbreaks every few years.

about three weeks ago
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Fuel Efficiency Numbers Overstate MPG More For Cars With Small Engines

wagnerrp Re:metric you insensitive clod! (403 comments)

When is it more important to do math in your head, when you're comparing several different cars for purchase, or when you're deciding whether you can make it to the next gas station or should stop at this one?

about three weeks ago
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Ebola Vaccine Trials Forcing Tough Choices

wagnerrp Re:funny that.... (178 comments)

This latest outbreak has already infected more than in the entire history of the virus prior to it. There hasn't been a great deal of effort, because there simply hasn't been a great deal of need. It takes time for labs to spool up against an outbreak, and the fact that new treatments are coming down the pipeline right around the same time the virus starts spreading to other countries is purely coincidence.

about three weeks ago
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Lennart Poettering: Open Source Community "Quite a Sick Place To Be In"

wagnerrp Re:Less static hardware. (993 comments)

The trouble is that init is something that absolutely cannot fail, and the more dependencies you bring into it, the greater the likelihood you are going to have bugs and failures. It's a system in which increased capability is not necessarily a good thing.

about three weeks ago
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Apple Sapphire Glass Supplier GT Advanced Files For Bankruptcy

wagnerrp Re:How can you (171 comments)

Presumably there was some stipulation in the contract that GT Advanced would need to meet certain mechanical and volume requirements by a certain date. When they failed, contingencies in the contract included repayment of at least part of that seed money.

about three weeks ago
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NASA Asks Boeing, SpaceX To Stop Work On Next-Gen Space Taxi

wagnerrp Re:Boing and SpaceX bids and awards without merit (139 comments)

the United States of America will not be capable of building nor financially support a manned space mission to the Moon and Mars for another 50-years because the infrastructure to support the people who are not yet born who will educate the engineers and scientists who will accomplish the mission does not exist.

That's circular logic. You only have to worry about educating two generations out if you've already decided your project is going to take 50 years.

about three weeks ago
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NASA Asks Boeing, SpaceX To Stop Work On Next-Gen Space Taxi

wagnerrp Re: Business as usual (139 comments)

Well they were also threatening to break their modules off the ISS entirely, and use them as the core for their own new space station.

about three weeks ago

Submissions

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MythTV 0.24 Released

wagnerrp wagnerrp writes  |  more than 3 years ago

wagnerrp (1305589) writes "Following with the accelerated development schedule, MythTV 0.24 is now available six months after the release of 0.23. MythTV is a distributed Linux-based PVR and home theater application. Highlights of this release include a brand new theme-able playback OSD, playback of HD audio formats, multichannel and 24/32-bit audio output, Bluray playback, and multi-angle DVD playback. A full listing of changes is available on the MythTV wiki."

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