The giant pachinko machine is the thing on the wall with all the wooden pegs that the barrels fall through. Its a bell-curve probability model in actuality.
I'm sticking with my belief that its pretty irrelevant. Things like Xen and the Combine are named that for two reasons. However, I don't see the relevance of the travelling salesman bit at all.
I doubt it has any relevance other than the fact that its related to science, and the main character is a scientist. Just like Blue Shift doesn't involve interstellar distances... Its just a catchy title, with a bit of a pun involved.
Headcrabs usually have to attach to the host's brain though. Otherwise how would they take control of their nervous system? (he's not attaching to the spinal cord either. The ideal location for attack is the brain stem, which is most available at the back of the neck)
Most people don't start Xmas shopping until about six weeks beforehand. Xmas is late December, so six weeks before that is mid-november. I think November is also the month where thankgiving occurs, so that's the general time period (if they released it really close to Xmas, that would be a bad...
If I recall correctly, there is a density system involving mass and volume... but it could also be based purely on material properties.. Buouyancy would be derived from the property of the object (some things sink faster than others).
About that boat, no, riddling the bottom of it with holes...
StickFigs, basically the two options are simulating the wheels or not simulating the wheels. I believe with simulation, this means that anything below it would be propelled backwards (3rd law) and that without it, the forward motion would be just that, forward motion (and coded rather than an...
I agree with Nathaniel, of course Valve wants the game to be as near-perfect as possible. They've said that it was delayed because it was not done. Even if the delay was external, its most likely Vivendi wanting to reap the holiday release time-period.
But even their beards are different. Anyway, you only see Gordon in concept art... never in the actual single player game (though I think his model is in multiplayer, if they retain that aspect).
Plus, they really don't look alike.
When things are packaged with video cards, they don't strip them... Plus, if the card comes out first, whoopdeedoo, you'll get a mail-in-rebate for $50 from either company when you buy HL2. Either that or you'll get it in the box if they come out about the same time. I hope they don't release...