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

Black Holes Not Black After All, Theorize Physicists

presidenteloco Re:Why is information movement a paradox? (226 comments)

My understanding of time in physics and thermodynamics is that time-forward is the direction in which information spreads out in space (at least on average). That is the meaning of increasing entropy. Time is not symmetrical backwards forwards, once you take into account the spatial location of information.

What this would mean is that as time passes forwards, information about other things becomes less and less accessible/available to an observer at any particular point/trajectory, because the (same amount of i.e. universally conserved) information is being diluted and mixed into more spatial locations.

"Information radiates" (at max C^2, notably!!) is pretty much the same thing as "thermodynamic entropy increases".

Couldn't the information falling into black holes just be a part of that "information becoming less and less accessible to any particular observer" trend of universal entropy increase.

Interestingly, black holes (any mass, actually) would seem to be local concentrators of information, acting in opposition to the normal tendency of information to radiate/spread with forward passage of time. Note the close relationship also of density of mass and density of local mutual information. Very interesting.

 

about a week ago
top

Black Holes Not Black After All, Theorize Physicists

presidenteloco Why is information movement a paradox? (226 comments)

Just because the information might have gone somewhere (inside a black hole) where we can't determine the information any more doesn't mean the information was lost to the universe.

It just means it was lost to us (and others on the outside of the event horizon.) It takes a pretty enormous ego (as an observer) to think that it matters to information's existence whether some particular external observer (like us) can detect the information.

So I don't get the paradox at all. The information is just inside the event horizon, isn't it? Inaccessible to us, but accessible to something else that was also inside the event horizon.

Anyone see where I'm going wrong here?

about a week ago
top

Western US States Using Up Ground Water At an Alarming Rate

presidenteloco Well let them drink Coca-cola (376 comments)

Where is that person that wanted to buy the world a coke when you need them?

But seriously, if polar bears are happy drinking coca-cola to cool off in the global warming, it should be good enough for the rest of us.

about a week ago
top

"Magic Helmet" For F-35 Ready For Delivery

presidenteloco Re:What obscene prices... (184 comments)

Yes but the toilet seat has downward facing fricking lasers that scan your "bodily output" to provide full medical tri-corder capability. A bargain at twice the price.

about a week ago
top

Math, Programming, and Language Learning

presidenteloco Re:Never had to use any college math on the job (241 comments)

"Numerical methods (using Fortran) was just in school."

So you routinely write a = b / c * d instead of a = b * d / c because you're ignoring precision issues do you?

about two weeks ago
top

Math, Programming, and Language Learning

presidenteloco Lack of rigour in math teaching made math suck (241 comments)

It was all the shortcuts, left out "intuitively obvious" steps, and sloppy use of variable names and symbols that drove me up the wall trying to learn advanced math from (imho crappy) math profs.

Let me tell you about the lecture with no less than three different Epsilons (a rounded one, a less rounded one, and something in between) used in the exposition of the proofs. That and my slight myopia kind of did me in in that class (or would have if I hadn't cribbed notes from my neighbour.)

Or, when, as a math prof, giving an example of applied math used for something like physics, why don't we just pick completely random variable names, instead, of, say, using m for mass consistently, v for velocity, etc.

I understand some kind of need to force people to think only of the form and not imbue terms with more semantics that aren't necessarily there in a particular mathematical formal system, but holy cow, could you be more obscure? Why yes I could. I will use 's' for mass on this page, and r' for mass on this next page, just to see if you are paying attention. !!!

about two weeks ago
top

Australia Repeals Carbon Tax

presidenteloco Re:dumbo (291 comments)

Sorry, did you say a public debate about the science.

You mean by all those public people properly qualified to assess the process and outputs of science?

Yeah, that sounds like a great idea to assess the truth of the claims of "expert consensus" science.

While your at it, why don't you start a public debate on whether the Higgs Boson exists, and if so,
which God it is the God particle of.

about two weeks ago
top

Australia Repeals Carbon Tax

presidenteloco Re:Why so worked up? Answer. (291 comments)

Per capita CO2 emissions is the only fair way to assess this:

Tonnes CO2 per person per year
- - - - - - - - - - - -
Australia: 16.75
China: 6.18
India: 1.64

2010 data:
Source: http://mdgs.un.org/unsd/mdg/Se...

So in summary Australia is 2.7 times as bad a greenhouse gas emissions offender as China and more than 10 times worse than India, on a per person basis.

It's not going to work to say: You poor guys tighten your belts a bit more eh, when the real numbers are as they are shown above.
It's massive hypocrisy to blame China and India for this problem.
Lead by example Australia. Cut your emissions in have to 8 Tonnes CO2 per person, then you might ask China not to grow to more than 8 Tonnes per person.

about two weeks ago
top

Australia Repeals Carbon Tax

presidenteloco If only there were some way of paying for... (291 comments)

a huge breakthrough in green energy.

No wait, there is. It's called a CARBON TAX.

- Pays for the development and rollout of the new technology.
-Incents people to purchase and use the new technology.

[SARCASM]Sounds like a terrible idea![/SARCASM]

about two weeks ago
top

Australia Repeals Carbon Tax

presidenteloco Re:Dissappointed (291 comments)

As a resident of a warming Earth, I am pissed off at Australia for falling for the "climate change conspiracy" theory.

about two weeks ago
top

Australia Repeals Carbon Tax

presidenteloco A massive carbon tax funding green energy R&D (291 comments)

Would be the right kind of carbon tax to have.

The world needs several "Manhattan Project" scale initiatives to invent and commercialize effective zero-greenhouse-emissions energy and transportation technologies.

If it's cheaper to pay the carbon tax than to change your ways (i.e. your industry / transport) then the carbon tax isn't high enough, and hasn't been put into funding effective alternatives to fossil fuel energy infrastructure.

Replicant wisdom applies:
Roy: There's only two of us now.
Pris: Then we're stupid and we'll die.

about two weeks ago
top

Microsoft Suspending "Patch Tuesday" Emails

presidenteloco The Canadian law doesn't apply to these (145 comments)

Only emails of a commercial nature are banned without opt-in.

A security notice is not an email of a commercial nature, unless it also contains marketing offers etc.

about a month ago
top

FAA Bans Delivering Packages With Drones

presidenteloco Rationale for the ban is??? (199 comments)

Presumeably the FAA doesn't think that hobbyists are much more responsible flyers than corporations doing business, so there must be another reason for this ban, yes? What could it be?

a) Corporate business use would amount to greatly increased drone flights, and the FAA just doesn't think its regulatory ability, or the safety aspects of the technology, is ready for prime time wide scale use yet? For example, the interaction of drones and conventional aviation would have to be worked out in great detail for safety, and more technology and rules would be needed.

b) Nuisance aspect of the technology? Noise? If widely deployed?

c) The FAA just likes banning stuff in general, and new stuff in particular?

d) Some vested competing interests (say, trucking industry? teamsters?,...?) are lobbying / bribing FAA senior administrators and/or politicians who have a say?

about a month ago
top

Steve Wozniak Endorses Lessig's Mayday Super PAC

presidenteloco Re:"The Internet" (209 comments)

I seem to have missed the part where everyone on the Internet is a US citizen.

But as a proud resident of Lower Banwidthistan, I am happy to contribute as requested.

about a month and a half ago
top

Freecode Freezeup

presidenteloco Alternative cross-repository listings though? (62 comments)

github.com is great and all, but it doesn't contain all free or open source software that's out there, by a long stretch.

Where is the alternative meta-level listing?

about a month and a half ago
top

"Super Bananas" May Save Millions of Lives In Africa

presidenteloco Re:GMOs are toxic and will be shown to cause cance (396 comments)

A statement like GMOs cause cancer has little more information content than "life causes cancer" which is undoubtedly true but vacuous.

Which GMOs? All of them? Which genetic modification in particular? All of them? One of them? Some class of them, defined somehow?

At the level of generality you state it, you are contributing to the perception that GMO opponents are unscientific.

There are very serious concerns about GMOs and ecosystems. But overstating the case with a pseudo-science statement like "GMOs are toxic" just weakens the legitimate arguments against GMOs. Every genetic manipulation of every different organism species is a different case, and will have different effects.

It's very akin to changing a computer program. What you say is akin to saying "every change to MacOSX is toxic and will cause a worldwide computer virus epidemic". Well that is clearly an uninformed, and frankly, dumb statement, and it undermines the legitimate argument that there are some (relatively few) possible specific types of changes to MacOSX that would in fact cause a worldwide computer virus epidemic.

about a month and a half ago
top

"Super Bananas" May Save Millions of Lives In Africa

presidenteloco Re:GMOs are inherently risky (396 comments)

They just may not prioritize the risk above their salary or their company shares value.

A lot of people are content to be engineers and scientists in pretty morally bankrupt enterprises. How could any smart, educated person with a functioning moral compass work as an engineer or scientist in say, the fossil fuel industry these days, with the possible exception of those working on coal carbon-capture and storage.

And yet plenty do. Being book smart in a specialty doesn't mean you are wise or particularly moral.

Who built Dr. Evil's high-tech lair and outfitted his sharks with frickin' lasers, I ask you? I rest my case.

about a month and a half ago
top

"Super Bananas" May Save Millions of Lives In Africa

presidenteloco GMOs are inherently risky (396 comments)

Probably most if not all current GMO food crops do not damage human health.

However, in the abstract, you are engineering (almost arbitrarily modifying) organisms capable of spontaneous reproduction and proliferation, so the level of precautionary principle needed is commensurate with "would it be ok if this escaped into the wild and took over ecosystem niches from more naturally evolved or incrementally bred crops / organisms? Do we have an accurate model of what would happen in that case? Have we tested enough to verify that model? And every case of a different manipulation or in a different organism is different so requires repetition of extensive testing."

The types of risks there run the gamut from destruction of wild varieties and species by competition from the GMO. Substantial alteration of ecosystem by shifting the balance of successful and unsuccessful organisms. Proliferation of and reliance on a GMO monoculture which is then subject to rapid destruction from a single pathogen. etc. etc. Ecological system effects in other words. Very hard to test for.

Again, it will probably be all be fine, until one day when it won't. When something unanticipated will happen and, well, the genie is out of the bottle and doesn't fit back in.

At a minimum, GMO food should be labelled as such, and let people decide for themselves and vote with their pocketbook.

about a month and a half ago
top

Samsung Debuts Thin Galaxy Tab S With Super AMOLED 2560X1600 Display

presidenteloco My Samsung superamoled display got dim (176 comments)

after only a few years of operation, there is a noticeable dimness to the screen, so that it is unusable in daylight.

I've read that AMOLED displays degrade quickly in their brightness.

Great for you if you are a company wanting to sell me a new phone every two years. Sucks for the consumer who might want to keep their phone 5 or even 8 years like I kept my last pre-smartphone.

about a month and a half ago

Submissions

top

software for home energy conservation

presidenteloco presidenteloco writes  |  more than 3 years ago

presidenteloco (659168) writes "We have some development resources to prototype smart energy grid innovations. What would you like to see? How could people interact over the Internet to help conserve energy? What about a smartphone app tied to your smart home. Any ideas?"
top

Looking for smartgrid software design ideas

presidenteloco presidenteloco writes  |  more than 3 years ago

presidenteloco (659168) writes "I work for a polytechnic university applied research group working on a smartgrid testbed project. That is, we are implementing R&D versions of electrical power grid technologies. My team does the software side of the work. One thing we are building is energy management system web applications for residential energy consumers to look at their consumption and set profiles for their consumption depending on energy price. What features should that have? What pricing models would you like to see? Can you think of any social energy management apps? We have some resources to implement prototypes, and are looking for ideas. This is for research purposes and innovation of the grid for environmental and economic and security reasons. Someone might try to commercialize some of it. Do you have any smartgrid software ideas you are willing to share?"
top

presidenteloco presidenteloco writes  |  more than 7 years ago

presidenteloco (659168) writes "I have developed a web application that I plan to offer on a subscription or service-fee basis.
Should I make the source code behind it free and open source?

What are the factors I should consider? If I FOSS it, I'll receive possibly some assistance
with refining and extending the software, and some good Karma, but on the other hand,
It will be trivial for anyone else to replicate my business model, or to set up their own in-house
version of my service, with no remuneration for me. Also, the value of the "asset" from an
investment or acquisition perspective would likely fall. Ideally, I'd like to earn a humble living or a
portion thereof from operating web applications that I develop. What would Slashdotters do?"

Journals

presidenteloco has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?
or Connect with...

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>