Maybe watch it again and pay attention? He said nothing of computer simulations....

In an isolated system (our galaxy) where there is angular momentum (the spinning about the galaxies central axis), the angular momentum is conserved (it never stops spinning with respect to how much mass is in it, and how far from the centre that mass is).

The objects floating above and below that central plane are NOT in an angular momentum vector, just simply moving about in a chaotic motion. Given enough time, these objects will collide, cancelling out their non-plane motions.....

None of this was derived from a computer model, but it does show it in practice near the end by using one.

The distinction is important.

It's to do with angular momentum. The explanation begins with rotational mechanics and ends a few months later so i'll leave you to it from there

hyperphysics is a fantastic resource for any level of physics.

In theory, the player performing the break could pot a red and then continue on that break, but that would be extremely unlikely and probably a very bad move. At no point in snooker do you get two shots in one turn, not even on the break.

The break shot requires that the player hits a red ball first. Since the pink is at the top of the rack (the triangle of balls), this prevents the player from breaking like you would in a game of 8 or 9-ball. Therefore, you are unlikely to get a red ball to move with enough momentum to make it to a pocket. And if you did manage to do that, everything on the table would be scrambled to hell which does not lend itself to easy, predictable shots or high scores (following the red-black-red-black pattern).

So, instead, in snooker the perfect break sees the cue ball striking one of the bottom corner balls, sending it in to the bottom cushion with the momentum moving along the back line of balls sending the other corner ball into the side cushion. Ideally, both of those balls will return very close to their starting position with the rack essentially undisturbed. At the same time, you want the cue ball to move around the table and come to rest either against the top cushion (as far away from the reds as possible) or hidden behind the green, brown, or yellow ball.

TLDR: No, breaks in snooker are defensive in nature.

Wouldn't it actually be easier if he maintained exactly 8.65mph (ideally) in the run-up? If he's going any faster, then he'd just be fighting his own linear momentum as soon as the incline started, being that he's not a rolling wheel or ball and instead relies on stationary foot placement and pushing to move. On the other hand, once the direction starts changing you'd have to pump really hard to maintain speed.

I would also imagine he needs to engage his core muscles to keep from folding forward; my understanding is that there would be a significant "outward" force generated, which in this case keeps him on the track, but does so by pushing him against it.

You can sign me up @bareboards2. If there were some broad agreement on terminology I would switch to gender neutral language instantly. Fucking sick of it.

Coincidentally I was thinking about this just this afternoon, because luckily I have nothing better to do at work than stand around contemplating gender politics; pleased and proud as I am of genderqueer crusaders trying to wrestle pronouns into shape, I've been generally unwilling to join them. For fuck's sake, I spend enough time every day arguing about the excess syllable in the number sev, I can't afford to multiply that by every sentence with a person in it.

Singularising plural pronouns is offensive to me on a practical and aesthetic level, Spivak's no damn good, you've got your zes and your hirs and your hens, it's a pain in the ass but as soon as we get some consensus and momentum it's going to be cool.

Can't see that feminism really has anything to do with all this, well, I have trouble seeing that feminism has anything to do with anything. Not to go all Trancecoach here with male world problems but they're similarly told that to be professional they have to knot a piece of cloth around their neck for no reason or slice the hair off their face every day for no fucking reason. The situation is that we have a bullshit tribal culture with endless absurd customs and arbitrary rituals which is perpetuated by morons.

So we should always be rationalising - language, culture, behaviour, expectations.

Gender neutrality is obviously the way to go. If you get shoved in a box you don't become the champion of the box and work to make your box the best box it can be; you break out and start beating your captors over the head with box fragments.

I don't give a fuck about women's problems; I don't give a fuck about women, but I'm glad to consider anyone who stops wearing makeup a part of my team because I don't wear makeup for the same reason I don't shave my stupid face.

Anyway that was my choggie impression for the day. Too much caffeine, not enough sleep, not enough time spent bathing in the blood of my enemies.

I usually take normal stairs two steps at a time, so the higher escalator steps (where I only take a single step at a time) actually are the lower ones for me. Would that mean that I get a higher momentum and speed at the top from walking up an escalator than ordinary stairs, then?

David Mitchell is not entirely accurate here I think (but certainly more accurate then Mr missed-his-name).
Escalator steps are not meant to be walked on, see e.g. here:
http://www.theglobeandmail.com/globe-debate/that-stopped-escalator-its-a-tougher-climb/article623713/

So if you walk up a stationary escalator, the average person will have a lot harder time than on a regular staircase, so there will be less forward momentum at the top.

That's not a swing, this is a swing:

http://www.youtube.com/watch?feature=player_detailpage&v=gI1uus5F5C8

These "village swings" as they were called were quite commong in eastern Finland and Estonia. They could be, and were, swung all the way around as here, only you'd be standing... Couldn't find footage of that, unfortunately.

Nowadays they're somewhat rare, as they're considered dangerous due to the rather great momentum you can achieve with a big swing. Also, as there is nothing to guarantee the swingers actually stay on the swing, you could get mangled pretty badly if things went wrong.

Incidentally, the Baltic countries apparently have a competitive swinging scene, where the objective is to sping as long as swing as possible fully around. The current men's record holder is one Andrus Aasamäe from Estonia, having managed the feat on a swing with a length from the pivot of 702 cm...

The one sure-fire way to send the machine into her death-throes, nobody and no one wants to engage: STOP USING THEIR PRODUCTS. This goes for every false system we suffer that gains it's power and momentum from people believing in it like some devotee to any religion.

Balls grow back when the power we have already have is wielded COLLECTIVELY. Only then can earthlings (humans being) begin to conduct mansion-to-mansion Pogroms.

conservation of linear momentum?

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I feel like if you have a good grasp of all the concepts involved...gravity, conservation of angular momentum, torque, etc...then this kind of is intuitive. It just takes an understanding of physics as a whole to make the leap. (Then again, maybe that base of understanding makes it not intuitive?)

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Well, just ask @blankfist , if banks ever did this, people would just go to another bank. No government intervention needed here.

Oh wait: http://investor.bankofamerica.com/phoenix.zhtml?c=71595&p=irol-newsArticle&ID=1838343&highlight=

"'We are doing more business with our customers and clients, and gaining momentum across every customer group we serve,' said Chief Executive Officer Brian Moynihan."

It must be that people like being taken advantage of. I know that's why I personally own a rubber bondage set, because I'd rather get taken advantage of via hot candle wax and use a credit bureau. Different strokes for different folks.