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Comment: Re:Not so fast, Thermodynamic laws are pesky thing (Score 1) 173

by DerekLyons (#46774759) Attached to: 'Thermoelectrics' Could One Day Power Cars

Any energy you manage to get, will be lost someplace else because you put these devices in the heat flow.

You sir, are ignorant as fuck. It's a sad comment on the state of affairs that a clueless bullshit comment like your could be moderated informative.

We've been extracting energy from waste heat, without incurring extra losses, for over a century now - it's been a standard practice in steam engineering since the 1800's. In the same way, if you put these devices in an IC engine's exhaust you can recover energy that would otherwise simply be vented into the atmosphere without incurring any losses "someplace else".

Don't let them fool you with all this "waste heat" garbage, at least until you understand the Thermodynamic laws that govern all this and can explain what a heat engine is.

Before cautioning others to educate themselves, first pull your head out of your own ass and educate yourself.

Comment: This news how? (Score 1) 43

by DerekLyons (#46762415) Attached to: Ubisoft Hands Out Nexus 7 Tablets At a Game's Press Event

From TFS: "You can see how it would be viewed with skepticism; after all, these are the individuals who will give Watch Dogs a review score, which many gamers rely on to help them make a purchasing decision."

Come on, we're all adults here. We all know the industry gives perks to reviewers in exchange for favorable reviews. This is just more blatant than most.

Comment: Re:Wat? (Score 1, Insightful) 580

by DerekLyons (#46762161) Attached to: How Does Heartbleed Alter the 'Open Source Is Safer' Discussion?

"The problem here is that people have been using the argument that Open Source is better because these issues can't happen "because" of the visibility."

No, just no. No one with any sort of a clue ever argued these issues cannot happen with Free Software.

No, they haven't made that claim in so many words. But they've sure as hell implied it for years now. That's the whole line of thought that Raymond's statement (quoted in TFS) is based on.

The amount of backpedaling and smoke blowing in this discussion awesome.

Comment: Re:Most unlikely technology in 1981: Handheld GPS (Score 1) 275

That's the OP's point - you're missing my point, which is that it's not really so unfathomable at all. By 1981, we'd already in less than a decade gone from pocket calculators being expensive rarities to being practically given away in breakfast cereal. LORAN was already widely available in a compact box. Etc... etc... By 1981, the accelerating pace of technology was already clearly visible to anyone who was looking. (Which I was at the time.)

What I missed/didn't grasp the full import of is that between 1981 (the year of my high school graduation) and 1991 (the year of Desert Shield/Storm) GPS went from being a highly classified piece of military hardware to a handheld commercial unit. There were actually more units in the civilian world than in the Army. (Folks were actually buying handheld GPS units at sporting goods stores and sending them to soldiers in the field because there was a shortage of officially available and issued GPS units!) But given the rapid advance of IC's into the civilian/commercial world, I shouldn't have been surprised at all. (OTOH, the full story of the DOD's role in developing IC's wasn't fully known/grasped at the time.)

Comment: Re:Most unlikely technology in 1981: Handheld GPS (Score 1) 275

I always thought the most unlikely technological development in my lifetime was the handheld GPS device. It would be "most unlikely" because it required tremendous, simultaneous, and largely unforeseen advances in several different technologies, each of which was hard to predict in 1981.

Yes... and no. In 1981, the pieces and precursors of pretty much everything on your list was already in place. Very little of it was available down at Radio Shack, granted, but much of it was already in use (at a minimum) by the military.

Comment: Re:Sci-Fi? (Score 1) 275

Especially when you consider, science has a hard time predicting future trends and technologies, yet Science Fiction seems to have been fairly accurate in predicting, if not outright influencing, future technological trends.

Certainly, if you cherry pick the hell out of the (tens of?) thousands of "predictions" made across the last century or so... science fiction seems remarkably prescient. In reality, the picture is much bleaker. In reality, science fiction is not much better at predicting the future than a million monkeys pounding away on typewriters.

Comment: Are you really that fucking stupid? (Score 1) 733

by DerekLyons (#46739491) Attached to: Ask Slashdot: Are You Apocalypse-Useful?

Yes, there's scrap from cars. Duh. Less and less each year though - most cars are recycled, and the steel quantity in each individual vehicle is dropping with each model year to save weight.

But you still need someone to strip the car and transport the material to the forge site. You still need fuel for the forge. Etc... etc... Here in the real world, that's called infrastructure. I have no idea what it's called inside that piece of rotted shit you call a brain.

Comment: Re:Blacksmithing (Score 1) 733

by DerekLyons (#46739471) Attached to: Ask Slashdot: Are You Apocalypse-Useful?

A decent blacksmith needs nothing but raw materials.

Think real hard jackass - where do the raw materials comes from? What do you think infrastructure is? And yes, I've met real blacksmiths and seen them at work - and very, very few of them work from scratch. (And if you think making decent quality charcoal is easy... I've got a bridge to sell you.)

Graduating from apprenticeship requires actually making your own tools from raw materials.

Assuming they graduated from an apprenticeship program in the first place. The individual to whom I replied had merely taken classes.

Comment: Re:Problem solving (Score 1) 733

by DerekLyons (#46738023) Attached to: Ask Slashdot: Are You Apocalypse-Useful?

I find that even though the specifics are different, the fundamental skill is the same..problem solving

The steps are the same..clearly identify the problem, look at the tools and materials that are available, then find a solution using what you have to work with

Well, if "what you have to work with" isn't "the skill to use the tools and materials available", then your "fundamental skill" is fundamentally fucking useless. (Not to mention that someone who lacks the "the skill to use the tools and materials available" isn't all likely to have the information needed to find a solution in the first place.) The real world isn't an MBA case study. You need actual skills.

Comment: Re:And the advantage of this is? (Score 1) 630

by DerekLyons (#46708899) Attached to: Navy Debuts New Railgun That Launches Shells at Mach 7

In ballistic mode, it only fine tunes the trajectory - you can't simply 'fire it in the general direction' and fix things up later. You already have to be in the basket, which isn't that large. The basket is larger for glide mode, but it's still not "in the general direction".

(Hint: Quoting from Wikipedia when you don't know jack shit doesn't make you look intelligent when you're replying to someone who does know what he's talking about.)

Comment: Re:IANA Physicist, So... (Score 1) 630

by DerekLyons (#46708877) Attached to: Navy Debuts New Railgun That Launches Shells at Mach 7

Instead, you have to store enough energy to fire the thing. I assure you - punching a hole in a capacitor bank charged up to fire one of these will not merely result in an 'arc flash' hazard...

A capacitor bank can be placed inside armor, or at least inside an enclosed volume, with minimal interfaces - historically, the access needed to transfer ammunition into or out of a magazine has been it's Achilles heel.

I'm a Lisp variable -- bind me!