Slashdot: News for Nerds


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!



Report: Nuclear Plants Should Focus On Risks Posed By External Events

FirstOne Re:already done (117 comments)

Contamination is quite reversible

.. Oh, you didn't mention that it takes six hundred years for the deadliest of the food chain isotopes (Cs-137, Sr-90) to decay to a reasonable concentration.. Yep other than that, contamination can be reversed.. Just not in a typical human life span .

P.S. Even time passage of a million years has little effect on some the other longer lived fission isotopes. Like Cs-135(6.9% fission yield, I-129, 0.84% yield).. Iodine-129 is particularly nasty since half of an animal's Iodine is concentrated in the thyroid gland. A 60,000 gram human has a thyroid that weights ~15 grams, you do the math.


2 days ago

Blueprints For Taming the Climate Crisis

FirstOne Re:AGW is falsifiable, easily. (389 comments)

I'll add a couple of corrections to your list
4.3) CO2 absorbs IR photons, but also re-emits IR photons, but in a randomized spherical manor.
4.5) Increased randomization of IR photons interferes with the normal flow of energy from earth's surface to outer space.
4.7) As CO2 concentration increases more and more IR photons are re-directed back towards earth's surface at all levels of the atmosphere.
7) The net effect of increasing CO2 concentration increases temperature near earth's surface and decreases it at high altitudes.

about two weeks ago

Climate Change Skeptic Group Must Pay Damages To UVA, Michael Mann

FirstOne Re:It *isn't* that well understood (497 comments)

"Current CO2 concentration is 380 ppm or so."

You're a bit out of date(2010), I see. Atmospheric CO2 has been crossing the 400ppm mark lately, (avr 399 ppm)

Over the last year(june2013-june2014) it climbed by 2.56ppm, and that rate of increase appears to be accelerating, thus humanity is going to be in deep doo-doo real soon if we don't stop burning fossil fuels.

The other facts you seam to be missing, Our star(SOL) was somewhat dimmer in the past, thus requiring much higher CO2 levels to keep the earth from freezing over. And that humanity is totally dependent on the current climate patterns..

about three weeks ago

Qualcomm Takes Down 100+ GitHub Repositories With DMCA Notice

FirstOne Re:Linux licensing canary? (349 comments)

Technically, Qualcomm violated the GPL license on the code it contributed to github.. Speciffically, the clause which licenses the code in perpetuity. Thus they can no longer offer their products for use in any Andriod phone or device which uses GPL'd software.

But if looks like Qualcomm has quickly seen the error of its ways and issued a retraction/apology.

about three weeks ago

NASA Approves Production of Most Powerful Rocket Ever

FirstOne Re:Saw the last launch of the Saturn V (146 comments)

I viewed the last nighttime launch of the space shuttle from a bit closer, 402 causeway. It was spectacular.. The subsonic rumbling makes your clothes vibrate like a bell, and is an awesome experience. I will make a special effort to see this rocket liftoff.

about three weeks ago

NOAA: Earth Smashed A Record For Heat In May 2014, Effects To Worsen

FirstOne Re:records go back to 1880, very funny (547 comments)

"40 years, another 1/2 trillion tonns of CO2".. is a significant under estimate!

Humanity is currently dumping 36 billion tonns(2013) of CO2 into the atmosphere each year. Projecting out using 2.1% yearly growth rate, humanity will hit that 1/2 trillion tonn mark in 2025. Just 11 years from now.

about a month ago

Half of Germany's Power Supplied By Solar, Briefly

FirstOne Re:What is a gigawatt per hour? (461 comments)

On the contrary, it's better for the grid than most people think, and it will get even better in the future. PV produces distributed energy when grid demand and associated losses is at its highest. Locally, when the sun is blocked by clouds A/C loads also diminished in a similar fashion.

At peak grid loads, every watt of locally product solar displaces upwards of 1.3 to 1.4watts of grid power. I.E. No more 20-25% loss from remote Power station to consumer, (Ohms law I^2R). And even parties not directly using locally generated PV energy will benefit by the overall reduction in centralized grid loading & losses.

It's just a matter of time before, more variable load devices(A/C's > 20seer, smart frig's, Heat pump WH, variable speed Pool pumps, etc,) come on line to take advantage of locally generated PV power.

Very few things in a typical household, need precise 24x7 on demand operation, some things can delayed, or done in advance, and/or accomplished at a reduced setting for longer period.

For example one could operate a 200L heat pump WH, when sun is brightly shinning during mid morning(Thermal battery), which in turn reduces the need to operate it in the evening or next morning when someone washes the dishes or takes a shower. Likewise, an A/C operated at lower power levels during the daytime, will in turn reduce the need for a night time cool down.

about a month ago

Half of Germany's Power Supplied By Solar, Briefly

FirstOne Re:Thanks for pointing out the "briefly" part. (461 comments)

Minimal usage.. most can be recycled, acids neutralized, phosphorous can be recovred, BTW this is all in the manufacturing step.. None of which exists in final end product, which you claim makes silicon PV panels loaded with Toxic waste. Bzzzt.. wrong-o..

Cadmium, indium, gallium, lead, and selenium all are used in amorphous (low efficiency, flexible) or specialty solar panels in tiny quantities. not the multi-crystalline silicon type which are deployed in typical grid tie installations..

Sodium Hydroxide(NaOH, drain cleaner), KOH, not dangerous.. both easily neutralized into a salt, just add HCl until pH is 7.. Then you have a brine solution. same goes or H2SO4, HNO3, reuse, recycle and/or reduce.

You been caught by your pants down by your own deceptions..

about a month ago

Half of Germany's Power Supplied By Solar, Briefly

FirstOne Re:Thanks for pointing out the "briefly" part. (461 comments)

Exactly what heavy metals incorporated into PV panels are you talking about??

Silicon, not a dangerous metal, you'll find silicon dioxide in vast quantities at any beach(sand), it also makes up 43% of earth's crust
Aluminum frame, not really, Al2O3 makes up 7% of earth's crust, also recycles real well.
Glass, a mixture of SO2 and few other harmless compounds.

A little bit of copper, also recyclable, soo what are you writing about??

about a month ago

Rising Sea Levels Uncover Japanese War Dead In Marshall Islands

FirstOne Re:Faster than the global average? (182 comments)

Add to water density aspect, thermal expansion, water water isn't as dense as cold water.. more of if can be displaced..ergo higher tides..

about a month and a half ago

The Sci-Fi Myth of Killer Machines

FirstOne Re:Evil vs buggy (222 comments)

A more likely scenario ... It will be the lack of machines which severely curtails humanity.. I.E.. EMP blast from orbit.. man-made, CME, Black hole formation.

Without our technology, 99.9% of humanity will quickly starve to death. Those that survive will be dealing with 400+ nuclear reactor meltdowns and spent fuel pool fires.. Average human lifespan will be reduced significantly.. Human's will be considered lucky to survive to age 30..

about 2 months ago

Wyoming Is First State To Reject Science Standards Over Climate Change

FirstOne Re:They don't agree with us! Burn them! (661 comments)

"With the melting of the tundra 10 years ago, we hit a tipping point, it became too late to stop climate change. It is now a positive feedback loop. You could remove every human being from the planet, and global warming would continue.

What we do about humanities 36 billion tonns/yr of CO2 emissions from FF, or not, will affect the rate of climate change. If at some point humanity starts producing a surplus of renewable energy, then we can extract CO2 from the oceans and use it to manufacture CH4 for later sequestration. At which point we really can reverse AGW.

But, first steps first.. We must reduce the amount CO2 emissions in the first place. By reducing wasteful energy usage(*), increasing the amount of renewable energy produced, and penalize fossil usage.

I.E. Wasteful energy usage, using a 10% efficient 2 tonn automobile where an Electric bike (600 to 1500MPGe), can accomplish the similar objectives.

about 3 months ago

Malaysia Airlines Flight 370: Experts Unable To Replicate Inmarsat Analysis

FirstOne There could be other factors.. (245 comments)

Like the signal reflecting off the ocean below instead of coming directly from the aircraft.

The only sure way to is to duplicate the flight path with a similar size aircraft using the same Engines and monitoring stations, using similar SAT positions. Only this time use a plane with extended range 777-200LR(verses missing 777-200ER) with minimal payload&maximum fuel and/or safely replicate the flight path in sections.

Use the resulting SAT/GPS data to help calibrate mh377 final resting spot.

about 3 months ago

Study: Earthlings Not Ready For Alien Encounters, Yet

FirstOne The whole "GOD": thingy.. (453 comments)

With 95% of humanoid population believing in a GOD who created mankind in his image,... has got to go..

The risk biological contamination, (both ways), is far to high, at best they'll send a sterile probe... land it on the moon, observe, and move on.. Until we start doing some really impressive space engineering projects, their isn't much to talk about.

about 3 months ago

Decommissioning Nuclear Plants Costing Far More Than Expected

FirstOne Re:Increase fuel burnup and this becomes cheap ! (288 comments)

Bzzzt.. no thorium was ever installed/used in MSRE. It was just one tiny air cooled, (7.4MWTh), Molten Salt reactor prototype. Initially it was fueled with U235/U238. Later U233/U238 (U233 was bread in more conventional reactors).

The MSRE prototype had significant problems upon decommissioning..

about 3 months ago

Setback For Small Nuclear Reactors: B&W Cuts mPower Funding

FirstOne Re:I have a project (165 comments)

WHO, IAEA, NIH, et al.. haven't refuted anything. The book was a compilation of several hundred scientific papers written in the appropriate non-english languages authors covering the affected area and population.

Nobody of any scientific reputation outside of those incestuous organizations agrees with any of the conclusions.

about 2 months ago

Setback For Small Nuclear Reactors: B&W Cuts mPower Funding

FirstOne Re:Too Little, Too Late (165 comments)

"You have also not mentioned your ASTRONOMICAL error claiming 60 million deaths from fall out." Why should I? I included a referenced click able link, that's a lot more credible than your claims. No error on my part, just the unvarnished truth that you don't want to admit exists.

Nuclear power always has been a fools bargain, their will be no winners..

about 2 months ago



Slashdot clutters up discussion threads

FirstOne FirstOne writes  |  more than 5 years ago

FirstOne writes "Recent Slashdot html rendering changes are making a mess of SlashDot's threaded comment display...

Friend, Foe and other delimiter icons frequently overlaying comment text, making it extremely difficult to read threads.

Firefox 1.5 -> Firefox 3.0 (latest version)."


FirstOne has no journal entries.

Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

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>
Create a Slashdot Account