Philip Newton (pne) wrote,
Philip Newton

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xkcd colour survey; ssh autoforwarding

Two rather different links, both interesting (at least to me)

xkcd colour survey results

A while ago, the person behind the “xkcd” web comic did a colour survey (it’s still open, but results are no longer being collected).

Basically, users were showed a colour and they were asked to name it. Any name they wanted, from basic “blue” through specific “light lime green with a touch of elephant-hide grey” to wacky “the colour of the burnt popcorn my aunt Thelma always used to make”. Anything.

Once you submitted a colour name for that colour, you’d be shown another colour. This would go on for as long as you felt like.

Now they’ve gone through and analysed the data, for such things as whether women tend to differentiate more shades than men or what the prototypical “light blue” looks like.

Here are the results of the colour survey.

As an aside, here are a few basic discoveries, as listed on that page:

  • If you ask people to name colors long enough, they go totally crazy.
  • “Puke” and “vomit” are totally real colors.
  • Colorblind people are more likely than non-colorblind people to type “fuck this” (or some variant) and quit in frustration.
  • Indigo was totally just added to the rainbow so it would have 7 colors and make that “ROY G. BIV” acronym work, just like you always suspected. It should really be ROY GBP, with maybe a C or T thrown in there between G and B depending on how the spectrum was converted to RGB.
  • A couple dozen people embedded SQL ‘drop table’ statements in the color names. Nice try, kids.
  • Nobody can spell “fuchsia”.

There’s also an awesome chart that shows the dominant color names over the three fully-saturated faces of the RGB cube (colors where one of the RGB values is zero). (Those are the same three sides visible in my icon, though they’re arranged in the opposite order on my icon: RGB counter-clockwise rather than clockwise.) From which you see, among other things, that the boundary between “green” and “blue” is “teal” for most of the way; it’s only “cyan” near the corner. And prototypical “magenta” (bottom right: RGB 100%, 0%, 100%/#FF00FF) gets called “pink”, while what people call “magenta” is darker and redder.

Background ssh forwarding

ewx introduces his page on background SSH forwarding as follows:

I want access from my laptops to various services (web proxy and email) on my home network, even when I’m away. A convenient way to do this is to use SSH port forwarding. This is a nuisance to repeatedly initiate manually though; I would rather have my laptop run the SSH command automatically, and restart it after network outages.

Fun stuff showing, well, how to set up SSH port forwarding automatically, with instructions for both Mac OS X clients (using ssh) and Windows clients (using PuTTY).

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