Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Geneticists Decry Book On Race and Evolution

jdschulteis Re:Are You Kidding? (541 comments)

In order for a Northern European to evolve fair skin and hair, there has to be something that will kill a human of dark skin and hair. Since people with dark skin can survive in Northern Europe, it is not through evolution.

The "something" doesn't have to kill, just reduce the probability of reproductive success. Vitamin D deficiency fills the bill.

about three weeks ago
top

Group Demonstrates 3,000 Km Electric Car Battery

jdschulteis Re:haha. they call if "charging the battery" (363 comments)

What I'm wondering is why I want to carry around 2 months worth of fuel in my car and be sitting on top of that amount of potential energy in a crash?

Maybe because of the unlikelihood that all of that energy would be released rapidly enough to cause a safety concern?

about 3 months ago
top

The Sci-Fi Myth of Robotic Competence

jdschulteis Re:Morals, ethics, logic, philosophy (255 comments)

Lin and Sofge advocate that the programmers should use strict utilitarian philosophy when deciding what to hit. I don't think that is going to fly, either from a legal or a sales perspective; the least damaging choice is just to try to stop the vehicle even if there is no time, rather than trying to "select" a crash for the least possible damage.

I agree--the results of collisions are simply too unpredictable. The idea of "knowing" the outcomes and choosing the one that leads to the fewest deaths (greatest utility) is preposterous. If a collision is unavoidable, simply remove as much kinetic energy as possible in order to minimize damage to the vehicle and its occupants.

about 3 months ago
top

As NASA Seeks Next Mission, Russia Holds the Trump Card

jdschulteis Re:Eric Burger asks, how did it come to this? (250 comments)

So much of the budget is off-limits (social security and medicare) that the only areas left vulnerable to cutting are things like NASA.

The USA has locked itself into forced spending in some areas and it's squeezing other areas.

We could double NASA's budget and pay for it with a 3% cut to the military.

about 3 months ago
top

Richard Stallman Answers Your Questions

jdschulteis Re:Wow. What a jerk. (394 comments)

Also, given his long standing support to Left wing causes, what exactly does he have against Stalin to call cellphones 'Stalin's dream'?

One can be a collectivist while opposing authoritarianism. See Political Compass.

about 4 months ago
top

Talking To the Public: the Biggest Enemy To Reducing Greenhouse Emissions

jdschulteis Re:Technological Advancement solves this... (324 comments)

And by easily I mean it has to be as cheap and effective as the dirtier power sources like coal and oil. Otherwise countries will never go towards it as it's too much of a hassle.

The problem with this reasoning is that coal and oil are only cheap if you don't count the cost of building seawalls, moving people inland, loss of arable land, and so forth. There will be longer growing seasons, open Arctic sea lanes, and other positive effects as well, but the consensus is that the net effect will be negative. Factor that in and wind and solar become cost competitive with fossil fuels.

about 4 months ago
top

The Koch Brothers Attack On Solar Energy

jdschulteis Re:Solar isn't "GREEN" (769 comments)

Solar panel creation uses many toxic products, chemicals and dangerous gases, including Sulfur Hexaflouride, the MOST POTENT GREENHOUSE GAS... Is it really about the planet, or is it about money?

From Wikipedia - "According to the Intergovernmental Panel on Climate Change, SF6 is the most potent greenhouse gas that it has evaluated, with a global warming potential of 23,900 times that of CO2 when compared over a 100-year period."

2002 was the last year I could find a quick worldwide sales number for SF6, 5096 metric tons. Using your factor of 23,900 and rounding up, that's the equivalent of 122 million tons of CO2 assuming every molecule of SF6 was dumped directly into the atmosphere. By comparison, in 2012, an estimated 9700 million tons of CO2 were emitted. Of course, only about 7% of SF6 production is used in semiconductor manufacturing, and only a fraction of that is solar cell production and of that fraction not all is released into the atmosphere. Cradle-to-grave estimates for all greenhouse gas emissions in grams of CO2 equivalent per kWh came in at 1001 for coal, 500 for natural gas, and 45 for solar cells.

Capture and sequestration of CO2 from burning coal would have large capital costs and increase coal usage by about 30%, putting the cost of electricity from coal right in the same ballpark as unsubsidized wind and solar.

Please do a little research and thought before you shout "ZOMG SF6 MOST POTENT GREENHOUSE GAS!"

about 4 months ago
top

Pollution In China Could Be Driving Freak Weather In US

jdschulteis Re:china has smog, so its clearly chinas fault. (158 comments)

Americans constitute 5% of the worlds population, yet we consume 24% of its energy.

Please stop using this bogus comparison to imply that Americans use more than "their share" of the world's energy. The correct comparison is between inputs and outputs. The USA produces nearly 20% of the world's GDP. If your 24% is correct, we have room for improvements in energy efficiency, but we're not nearly the energy gluttons that you're suggesting. The low ratio of population to energy use is largely due to our high productivity.

about 5 months ago
top

Climate Scientist: Climate Engineering Might Be the Answer To Warming

jdschulteis Re:What if we overcorrect? LA comparison (343 comments)

Shesh, nope. First, what tax subsidies are you talking about? There is no way Coal is subsidized, nor is oil and gas.

Do a little research. Here's a starting point.

It's going to be cheaper to make electricity by natural gas for a LONG time, especially over solar.

That depends on how bad the fracking earthquakes get.

about 5 months ago
top

Ask Slashdot: Are You Apocalypse-Useful?

jdschulteis Re:Some of the oldest trades become useful. (737 comments)

I'd rather be a marauder. What's an good apocalypse without them?

I am reminded of the words of the notorious pirate Bartholomew Roberts: "...a merry life and a short one shall be my motto."

about 5 months ago
top

GM Names Names, Suspends Two Engineers Over Ignition-Switch Safety

jdschulteis Re:Not a flamebait summary (236 comments)

I have long held the belief that software can be life critical at times and software engineers should be held to the same professionalism as any other form of engineering.

It is a matter of fact, not belief, that software can be life critical. For the majority of software, though, cost and time-to-market considerations far outweigh coding to the highest professional standard. "Good enough" wins.

about 5 months ago
top

GM Names Names, Suspends Two Engineers Over Ignition-Switch Safety

jdschulteis Re:Why not? (236 comments)

In most places "Software Engineers" meet no accreditation requirements, have no requirement to belong to any society which regulates ethics, experience or training.

I've worked with real engineers, ethics was more important than their education.

There is no requirement to belong, but at least there is a society that promulgates ethics.

about 5 months ago
top

Michael Bloomberg: You Can't Teach a Coal Miner To Code

jdschulteis Re:He's right! (581 comments)

Trying to stuff everyone into a particular mold is like something straight out of Anthem or 1984, and it just doesnt work.

Right. Best to take a page out of "Brave New World", so everyone from alphas to epsilons can be happy.

about 5 months ago
top

Australia Declares Homeopathy Nonsense, Urges Doctors to Inform Patients

jdschulteis Re:If this were the US.... (408 comments)

If I get my hands on the asshat who's been poaching my unicorns there'll be hell to pay

It's those guys from the marketing department.

about 5 months ago
top

Elite Violinists Can't Distinguish Between a Stradivarius and a Modern Violin

jdschulteis Re:Modern audiophiles are no different. (469 comments)

Can you show me the math that proves that there's no difference between an uncompressed audio source and a 320kbps mp3?

There's a difference between "no difference at all" and "no difference that can be detected by human hearing".

about 5 months ago
top

UN Report: Climate Changes Overwhelming

jdschulteis Re:Meanwhile, people are bailing from the IPCC (987 comments)

P.S.: I'm quite skeptical about sequestration of CO2. I don't think it will work, and if it does work, I think it will be too expensive to use. The BEST form of sequestration is to grow forests, turn them into paper, and print books on them, with chemically treated paper so it won't decay. This doesn't add in exogenous energy costs, and storage is not a major issue. If it is, just build more libraries...and fund them to retain books. Burying CO2 can expect to have undetected leakages over a period of time, and to add significantly to the cost of generating energy. To me it looks like a boondoggle created to justify continuing to burn coal.

Carbon capture plants will require 25–40% more coal to produce the same amount of electricity compared to blithely-dump-CO2-into-the-air plants.That would tighten up the competition with wind and solar, but not make it "too expensive to use". CO2 leaking from storage remains a legitimate concern.

As for growing forests, I like the idea of turning them into buildings.

about 5 months ago
top

Continued Rise In Autism Diagnoses Puzzles Researchers, Galvanizes Advocates

jdschulteis Re: Clearly vaccination is to blame! (558 comments)

If you don't use soap ever, you probably are human contact free too... although what did they use before soap was made?

Ancient Romans used olive oil.

about 5 months ago
top

Gates Warns of Software Replacing People; Greenspan Says H-1Bs Fix Inequity

jdschulteis Re:Solved It (516 comments)

I can't be replaced because I write fiction for a living. In English. I can write up to 12,000 words a day.

An AI capable of writing fiction that people would buy and read may well be less than 30 years away. Once it happens even James Patterson will play John Henry to the indefatigable writing automaton.

about 5 months ago
top

What If the Next Presidential Limo Was a Tesla?

jdschulteis Not All Of the Magic Words (330 comments)

and what if it was paid for by using bitcoin...
now i think this post has all the magic words to make it a successful slashertisment.

Not all of the magic words. "What if the next presidential limo was a 3D-printed Tesla paid for with bitcoin?" Now we're getting there.

about 6 months ago

Submissions

Journals

jdschulteis has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>