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J'arrive! (at last)

Ever get the feeling that you shouldn't get out of bed? I've been having bad feelings about this trip for the last couple of weeks, and so far almost all of my misgivings have come to pass.

I left the office at 1630, and I got into my hotel room just before 2300 GMT (my office is a fifteen minute bus ride from the airport, to put this into some perspective). My flight was cancelled. The replacement flight was delayed by almost two hours. My hotel reservation had been cancelled. The hotel didn't have a free room for the duration of my stay (I'll have to change rooms tomorrow morning).

The only things that I have fretted about that haven't yet happened to me are a) I'm mugged and left bleeding to death in a Parisian subway and b) a goose hits the engine on my side of the fuselage, tearing the wing off and leaving me to plummet to a watery death in La Manche below, possibly with half a propeller blade embedded in my chest. It wasn't lost on me that I had the window seat directly in line with the propeller, and I spent much of the flight calculating the probability that I'd get hit by a blade if the damned thing fell apart (based on the angle subtended by my body with respect to the axis of rotation of the propeller, and the number of blades). My, but I'm a cheery bunny tonight.

On the subject of cheery bunnies, as I sat on the RER from CDG, I realised that I never posted about my last trip to Paris (NATO workshop on ontologies) back in 2003, which was also my first experience of the Metro. There's a little cartoon rabbit on the Metro to warn (presumably) children of the dangers of sticking your hand in the closing door, as shown below:

On that trip in 2003, the Metro Bunny gave me a dreadful sense of deja vu; I knew that I'd seen it before, but also that I couldn't have seen it in real life. I got to the hotel and switched on the TV while I ran a bath. The only English-language station was MTV, which was showing an episode of Jackass that I'd seen before. In fact, it was showing the episode of Jackass in which J. Knoxville dresses up as the Metro Bunny and reenacts the cartoon to the bewilderment and general disinterest of his fellow Metro-users.

I'm still aghast that my knowledge of this French cultural icon came from Jackass.

Good night all. Hopefully the hotel won't burn down, consuming all my clothes and belongings and forcing me to stand naked in the streets of Paris.

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I can think of worse things - you could have to eat at a Quick or Hippopotamus; you could have to listen to an MC Solaar album all the way through; you could have to be drawn by a Montmartre pavement artist.

Oh, and en cas d'affluence, n'utilisez-pas les strapontins - which always amused me, particularly with the diagram with the little stick people seemingly wielding a dildo of gargantuan proportions.

And there was me thinking that was his leg!

It's a good job we didn't have a meeting this morning. Not only did I have to wait for an angry wasp to stop stinging my windscreen and kindly leave my car after parking up (a good ten minutes, as the blasted insect seemed insistent that if could just kill all this glass, that'd be the way out---not the adjacent open doors with fresh breeze), no. No, my bike then proceeded to shed itself of the confinements of its chain, remaining on only one of the four sprockets. This included magically jumping out from a gap smaller than the chain is tall between the hub sprocket and the adjacent one, and getting that back together took longer than I care to try to calculate. Not an optimal day for travel, it would seem. At least your hands aren't stained black with dirty oil.

It looks more to me like the foolish lagomorph has put his hand in the way of doors which are opening, which makes a change. Being caught and dragged into a mechanism is far more interesting than merely being crushed, as anyone who's wondered what would happen to you if your shoelace got caught in an escalator will tell you.

Prop blades or turbine blades?

If you're level with the engine and the plane is moving at any kind of speed then I'd assume they'd pass through the fuselage somewhat behind you.

Well, the sideways-into-Nick force is going to be based on inertia from the rotation (that centrifugal force that doesn't exist), and fly-back-into-the-fuselage force is going to be that of air resistance (remember that the blades have the same velocity as the rest of the plane until they let go).

I would intuit that the former dominates the latter.

For a plane in a vacuum, yes, but I'm also thinking of the wind resistance of the blades for plane is moving at any kind of speed since the surrounding air will not be moving at the same velocity.

Ahem. "...is going to be that of air resistance". ;)

It's a question of whether the blades' AR-caused deacelleration relative to the plane can beat he blades' travel to Nick. I doubt they can, but I've not done Physics since A-level, and fluid dynamics terrifies pretty much everyone.

And it's not even Friday 13th yet! :) I suggest just staying in bed tomorrow ;-)

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There's a special circle of hell for people who set up websites to deal with 403/404s by redirecting to the homepage.

Working link.

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Technically, I suspect that either Opera, Firefox, or both have their own reinventions of a DNS client within its codebase. Standards-wise, it might be being pedantic: see page 7 of RFC1034. OS X's host utility handles the trailing period fine.

In fact, no, this can't be client side resolution, as Opera still went to the right IP address. Maybe Firefox trims the trailing period from the "Host" HTTP header, Opera doesn't, and that site's config treats unknown vhosts as "redirect to NS home page".

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