Comment author: darius 17 September 2012 04:57:46AM 5 points [-]

There's a Javascript library by Andrew Plotkin for this sort of thing that handles 'a/an' and capitalization and leaves your code less repetitive, etc.

Comment author: komponisto 08 July 2012 06:08:08AM 0 points [-]

the salient example of Einstein

Better examples of outsider-scientists from around then include Oliver Heaviside and Ramanujan

Again, I don't care whether the person remained an outsider for their entire life; all they need to have done is to have made a contribution while outside. Thus Einstein in the patent office fully counts.

Moreover, it is worth noting that Ramanujan was brought to England by the ultra-established G.H. Hardy, and even Heaviside was ultimately made a Fellow of the Royal Society. So even they became "insiders" eventually, at least in important senses.

Comment author: darius 08 July 2012 10:04:04AM 1 point [-]

In Einstein's first years in the patent office he was working on his PhD thesis, which when completed in 1905 was still one of his first publications. I've read Pais's biography and it left me with the impression that his career up to that point was unusually independent, with some trouble jumping through the hoops of his day, but not extraordinarily so. They didn't have the NSF back then funding all the science grad students.

I agree that all the people we're discussing were brought into the system (the others less so than Einstein) and that Einstein had to overcome negative selection even while some professors thought he showed promise of doing great things. (Becoming an insider then isn't guaranteed -- in the previous century there was Hermann Grassman trying to get out of teaching high school all his life.)

Heaviside and Ramanujan accomplished less than Einstein, but they started way further outside.

Comment author: komponisto 05 July 2012 04:11:13PM 8 points [-]

While [negative selection] filters out some good people, it probably does not reject the very best, otherwise we would see an occasional example of someone making a significant discovery outside academia.

I predict that we will indeed see this before too long, now that we have the internet; and it will thus turn out that some of the best people were being filtered out. Access to information and social support/reinforcement is a huge limiting factor.

And of course, if you're willing to look a century back instead of just a half-century, you find the salient example of Einstein -- who didn't even have the internet, but still managed to advance science from outside the "establishment" (which was a sizable apparatus in his time and place, just as it is in ours).

Comment author: darius 08 July 2012 03:23:45AM *  1 point [-]

Better examples of outsider-scientists from around then include Oliver Heaviside and Ramanujan. I'm having trouble thinking of anyone recent; the closest to come to mind are some computer scientists who didn't get PhD's until relatively late. (Did Oleg Kiselyov ever get one?)

Comment author: steven0461 23 November 2011 08:17:14PM *  1 point [-]

I think it's in Chapter 12 of Drexler's Nanosystems, which may be worth citing regardless. ETA: or to read about it online, Chapter 11 of his MIT dissertation linked at the top.

Comment author: darius 25 November 2011 09:09:24AM 1 point [-]

Yes, that's where I got the figure (the printed book). The opening chapter lists a bunch of other figures of merit for other applications (strength of materials, power density, etc.)

Comment author: Dr_Manhattan 22 November 2011 01:09:34PM *  4 points [-]

Great post on a very important topic.

One suggestion: pictures would help a lot here. Norvig's AIMA has some very nice illustrations in ch 16 (I think)

P(p)=2x; in the second, P(p)=2-2x

Not sure how you worked this out. Not clear what X is

Comment author: darius 23 November 2011 08:09:00AM 2 points [-]

Figure 16.8. (I happened to have the book right next to me.)

Comment author: steven0461 23 November 2011 05:27:22AM 3 points [-]

Apparently .24nm is twice the Van der Waals radius and .1nm is twice the Bohr radius. I'm not sure which one has a better case for being called the "true radius".

Comment author: darius 23 November 2011 07:41:39AM 2 points [-]

Ah -- .1nm is also the C-H or C-C bond length, which comes to mind more naturally to me thinking about the scale of an organic molecule -- enough to make me wonder where the 0.24 was coming from. E.g. a (much bigger) sulfur atom can have bonds that long.

Comment author: steven0461 23 November 2011 05:15:41AM 4 points [-]

You're thinking of "nanites", I'm pretty sure.

Comment author: darius 23 November 2011 05:21:22AM 0 points [-]

Oh, you're right, thanks.

Comment author: darius 23 November 2011 05:06:18AM 3 points [-]

Isn't an H atom more like 0.1nm in diameter? Of course it's fuzzy.

I agree with steven0461's criticisms. Drexler outlines a computer design giving a lower bound of 10^16 instructions/second/watt.

Should there be a ref to http://e-drexler.com/d/07/00/1204TechnologyRoadmap.html ?

Quibbling about words: "atom by atom" seems to have caused some confusion with some people (taking it literally as defining how you build things when the important criterion is atomic precision). Also "nanobots" was coined in a ST:TNG episode, IIRC, and I'm not sure if people in the field use it.

In response to comment by darius on Fix My Head
Comment author: Alicorn 18 September 2011 02:16:30AM 1 point [-]

I recently tried drinking oil for the Shangri-La diet and it made me want to puke; is there some tasty preparation you recommend?

In response to comment by Alicorn on Fix My Head
Comment author: darius 18 September 2011 09:41:33PM 0 points [-]

You could grind seeds in a coffee grinder, as BillyOblivion suggests. (I don't because the extra stuff in seeds disagrees with another body issue of mine.) Sometimes I take around 5 gelcaps a day while traveling, which isn't as effective but makes most of the difference for the headaches.

What I do is put on a swimmer's nose clip, drink the oil by alternately taking in a mouthful of water and floating a swallow of oil down on top of that; follow up with a banana or something because I've found taking it on an empty stomach to disagree with me; have a bit more water; then take off the noseclip. The clip is mainly to help with Shangri-La appetite control, which I consider just a bonus.

The first time I took this it gave me heartburn -- starting with a smaller amount the first couple of times might be smart.

In response to Fix My Head
Comment author: darius 17 September 2011 11:11:35PM 1 point [-]

My headaches mostly went away with daily flaxseed oil or fish oil. I have no particular reason to expect you'd see the same, but it's easy to try. I take 1 or 2 tablespoons of flaxseed oil per day.

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