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Comment I disagree Re:I agree... (Score 1) 279

I absolutely suck at memorization, so what I did was learn the why of the reaction - which generally was just geometry based (which part of the electron cloud was physically easiest to access - ie steric hinderance); charge based (which atom most 'wanted' the electrons') and energy based (which configurations would be energetically stable with minimum strain and best sharing of electrons).

For my O-chem final - my brain almost completely forgot all of the standard reactions, but I was able to reconstruct reactions and what reactants and environments I needed based on what I wanted the molecule to do; and derive what products to expect based on the above method.

I was one of the people that found ochem easy, but pchem quite difficult.

Comment Re:Sounds promising (Score 3, Informative) 362

Well, I'm no rocket expert. But there's a diagram in the linked report of the remnants of the 330mm rocket, and it makes a pretty convincing case that the rocket was loaded with chemical weapons and not with explosives.

Jane's did an analysis and basically concluded that the rockets could be chemical, Fuel Air Explosive, or conventional explosive with equal plausibility without any reason to conclude one was more likely than the other. FAE and some conventional explosives can evaporate/dissipate thus the hollow area that humanrights watch is claiming is chemical -can equally likely be the fuel for a fuel air explosive or a conventional explosive.

http://www.janes.com/article/26414/syrian-military-allegedly-used-makeshift-rockets-in-chemical-attack

Comment Re:The emperor has no clothes (Score 5, Insightful) 526

Hell, I'm pro-legalization, but Obama's position does not constitutionally allow him to pick and choose which laws he will and will not enforce. Not that it's ever stopped him.

The government has limited resources and it is literally impossible to enforce all of the federal laws to the full extent. Therefore the government must prioritize enforcement. If some laws are so low in priority that there is no enforcement, then congress can increase funding for federal law enforcement officials if they really want those enforced.

Comment Re:Polygraphs (Score 1) 282

Why the hell are polygraphs still being used in the 21st century? They aren't admissible in a court of law for a damned good reason. They are junk science and no better than a voodoo board.

Voodoo is a rather apt analogy. The reason they are used is that they help amplify the belief of the individual that they will get caught in a lie. Thus the reason the FBI are angry is that this teaching will negate the belief that you'll get caught and defeats the psychological manipulation.

Ie if the vooodoo man casts a hex on you, and you believe in voodoo - then you might engage in behavior that makes the hex self fulfilling; but if another voodoo man sells you a talisman to ward off the hex - your belief in the second voodoo man cancels the belief in the first voodoo man.

Comment I'm a MOOC addict (Score 2) 141

I'm signed up for almost every coursera MOOC.

I've only officially completed 1, and watched every video for about 30 others, and have downloaded videos 'to watch' for most of the others.

A few things I've found are that

1) Professors seem to like to assign waste of time busy work.

There are lots of classes that require essays or projects where it is essentially a giant waste of the students time. This includes doing videos and presentations for almost any course (a really well taught audio production course wanted every stuent to do a video essentially repeating a subset of the same material he just did. Others have wanted various large scale projects.) Since there would only be 'peer' evaluation of the material, this was all essentially busy work. There are areas where peer evaluation can be useful (some writing with rubrics and such), but mostly it was stuff that wouldn't matter at all from improving learning. Or the amount of learning improved versus the time invested was drastically out of proportion.

The math, science, programming and finance classes tend to 'get it right', only assigning an amount and type of assignment required to understand the material well, not wasting students time.

2) Science, Programming, Finance, Engineering, and Math courses are real courses, courses from Bschool and other sections are often ridiculously simple.

Of course testing and evaluating understanding of computer and science courses is quite easy, but still the quality and type of questions asked in reviews and homework and the type of assignments made sense for the Science/Tech classes; whereas I was sometimes wondering why the other courses had even bother to do a quiz the questions were so ridiculously simple minded.

Comment Re:This is a rare breed of human. (Score 1) 758

Kepler figured out he had it all wrong after a career spent trying to prove bad theories (Platonic model of the universe? Really?) ... and arguably launched the age of the scientific enlightenment.

Kepler is likely a poor choice of analogy. Much more apt is probably religious conversion, or political party conversion, or social movement conversion. Most individuals who have complete reversals of position have neither position based on logic, but on emotion. The individuals will have rationalizations for their emotional decision, but it isn't useful to look at their reasoning, since the 'reason' is generally post hoc rationalization. Usually the actual reason is either a traumatic event (ie death of a family member causing loss or gain of faith; 'betrayal' by a politician) or change in self interest (monetary, sexual mores, regulatory costs/benefits, social welfare costs/benefits).

Comment Onestep Wall (Score 2) 289

I used to work for a startup company that created an amazing new block design, lays up like standard masonry and has the beauty of masonry.

http://onestepbuildingsystem.com/what-is-onestep.html

Has an integrated cavity that is filled with concrete and rebar, so is ridiculously strong. And the insulation seals it against water penetration (not as well as the original design which had more internal plastic, but in the water penetration testing it stood up to hurricane force driven water without leakage.)

Also has great sound insulation, has thermal mass to the inside which drops heating and cooling costs significantly, and maintenance is fairly inexpensive.

Not sure what choice you'd use for windows, I recall seeing some that were quite amazing 10 years ago, when I last looked, but I'm sure the market has devised some even cooler stuff since.

Comment Re:Questionable GPL interpretations (Score 1) 56

No you don't have the implement the functionality, just the API.

Ie if the GPLed api has

int Square_Root(int x);

then my binary compatible test API can just do
int Square_Root(int x) {return x;}

It doesn't have to be functionally equivalent (or even if it is functionally equivalent a far simpler method to implement) just binary compatible to compile against.

Comment Re:Questionable GPL interpretations (Score 1) 56

A point/example I meant to raise above would be projects like WINE or Dalvik, that reimplement APIs that are binary compatible with APIs of other OSes. Obviously I can compile a a program against the official windows API and then run it in WINE, and yet the LGPL (or GPL if I compiled the WINE using that clause) would almost certainly not make my software a derivative of the WINE software. This seems directly analagous to the case above where I rewrite a binary compatible API, compile against it, then run the driver with the GPLed kernel.

Or alternatively - a case that is more personally relevant would be individuals creating closed source scripts against the Blender python API. Or closed games that are interpreted by the GPLed blender game engine and use the Blender python API.

Comment Questionable GPL interpretations (Score 4, Interesting) 56

It is often asserted (ie by the FSF) that exposed C/C++/Python APIs for GPL software can't be used by non GPLed code unless a specific exception has been added to the license.

However, a non GPLed binary compatible API could be done that the plugin, etc. can be compiled against. Given that it seems like the GPL could not be enforced against driver compiled against a binary compatible API. Ie Alan Coxes recent assertion that Nvidia wasn't allowed to use a certain internal feature of the kernel should be readily made technically irrelevant, since Nvidia could create a stub binary compatible equivalent to the API to compile against, and then the user can install the driver and use it with the GPLed kernel without violating the GPL.

Is there a flaw in this reasoning or do programmers have a way to readily use GPLed APIs as closed source without violating the GPL?

Comment Your view of Steve Jobs as inventor (Score 2) 612

My question is - do you believe that Mr. Jobs is rightfully praised as an inventive genius?

In the popular press, Steve Jobs is often praised as one of history's greatest inventors and as an inventive genius, and I feel it does a disservice to true inventive geniuses (such as Tesla) to praise talented businessmen with modest or little inventing talents as great inventors.

From my reading of the history of Apple and specific Apple product lines - his talents are primarily with business and marketing - with providing little in the way of invention or technical skill.

He of course has his names on numerous Apple patents - but this seems more as a hedge against having patents invalidated by not listing all who 'contributed' to an invention due to the risk of any feedback or comment being viewed as a contribution to the invention however minimal.

Mr. Jobs did have some true inventions to his credit - for instance using plastic cases for the Apple I, insisting on good quality bitmap fonts for the Macintosh.

Most of the inventions that the public attributes to him are primarily based on the inventive and technical talents of others (Ie the Apple line, Macintosh line, iPod, iPhone), were almost all completely developed with almost no significant invention on the behalf of Mr. Jobs (sometimes as with the case of the iPod, the products were concieved of and invented and developed almost completely outside of Apple) .

He certainly contributed by providing good user feedback (ie reducing the delay time for loading and switching for the iPod OS), but such feedback aren't inventive in nature.

Comment but how well does it work in the real world (Score 2) 157

While it is true that you can engineer essays to be 'bad' and still score 'good' - the question is - are there natural essays that score good but are actually bad; and good essays that score bad but are actually good.

Every analysis I've seen suggests that these algorithms do have problems with good essays that are highly creative. Essay graders also have difficulties with this kind of essay - giving drastically varied scores.

However there doesn't seem to be much evidence of other issues except when an extremely knowledgable issue deliberately trys to make the algorithm fail. Any student or other individual who can do this probably knows that material well enough to 'get an A' if they were to properly apply what they know so this seems like a non issue.

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