I never knew it deviated from its course at all until you informed me. It can only turn if there are deviations in the ice, either natural or brush made. Thought this a more interesting story from the olympics. How some suffer for their art. If you think supporting Derby is tough read this.
https://www.theguardian.com/sport/2022/feb/20/finland-remi-lindholm-frozen-penis-cross-country-50km-skiing-winter-olympics

The ice is flat, the brushes don't make it curl. The curler does it.

comment by lastapostleofvidal (U1491)
posted 12 minutes ago
The ice is flat, the brushes don't make it curl. The curler does it.
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Just brilliant.
And almost in haiku format, as well

comment by lastapostleofvidal (U1491)
posted 15 minutes ago
The ice is flat, the brushes don't make it curl. The curler does it.
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So how. Once the curler lets go they have no influence and the stone will carry on in the same trajectory as when it started. That is unless you are right and Newton was wrong. Newtons first law is yet to be repealed.

I’ll stick to the Carling 🍻

Once the curler lets go they have no influence. Correct

The stone will carry on the same trajectory as when it started. Incorrect.

Newton's first law is yet to be repealed. Correct.

Are you a fan oif the late Meat Loaf, by any chance, Spart?

FFS Spart you are outdoing yourself today. I suspect you may have been out in the wind too long?

comment by lastapostleofvidal (U1491)
posted 2 minutes ago
Once the curler lets go they have no influence. Correct

The stone will carry on the same trajectory as when it started. Incorrect.

Newton's first law is yet to be repealed. Correct.

Are you a fan oif the late Meat Loaf, by any chance, Spart?
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He’d do anything but he wouldn’t admit that.

So how can it change direction? Do the stones have a bias like a bowl? If so that would only work until the motion achieved equilibrium.

I wasn't a fan of meat loaf. As you know I am a vegetarian.

The main problem is that you lot are thicker than a gurkha's 4skin

comment by Igòr; for life, not glory & FECK TH... (U22200)
posted 12 minutes ago
I’ll stick to the Carling 🍻
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I’ve just ordered a double Jameson’s in the birthplace of Guy Fawkes

And yet we know how the stone curls, and you cannot figure it out Spart. So what part of the Gurkha does that make you?

comment by Scouse (U9675)
posted 14 minutes ago
FFS Spart you are outdoing yourself today. I suspect you may have been out in the wind too long?
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To be fair, Scouse, it sends me loopy as well

So how can it turn? There has to be a force in a different direction to that from the person who initially pushed it? I could of course look it up but I am intrigued to hear your explanation.

'The main problem is that you lot are thicker than a gurkha's 4skin'

I'm learning so much tonight 😮

OK, you have suffered enough.

As they let go of the stone, Spart, they impart rotation to it, either clockwise or ant-clockwise. The stone curls to the right if it;s clockwise, and to the left if it is anti-clockwise rotation.

So it that why you can see the little handle at the top turning ?

Correct, grasshopper. You are on the road to enlightenment. I suspect Spart will require more detail.

*Grasshopper

Monkey 🐵

Ah so ✌️

The ignorance of some people is frightening! Thank God for Vidal

I had already considered spin but as Ang says, you would see the handle turn. If the handle were on a bearing then considering the mass of the stone the curler would not be able to impart spin to the stone. . So why don't you see the handle turn? Also when they push the thing off the person pushing it is travelling in the same direction as the stone so how do they impart spin?

Also spinning a massive stone would not cause a change of direction on its own. It would be like playing table tennis in a vacuum. The ball would not change direction as there would be no differential in resistance on either side of the ball. It is the asymmetry which causes the ball to change direction. I fail to see where the asymmetry is coming from with a curling stone except from the differential friction on the ice.

comment by Peeder (U1684)
posted about 9 hours ago
The ignorance of some people is frightening! Thank God for Vidal
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I assume you will be bending for him later.

The handle DOES turn, Spart. You see it rotating. As the curler releases the stone he or she imparts a flick of the wrist. It isn’t like a Shane Warne leg break but it is enough. Why that actually causes it to turn as it slows down has been a matter of debate and research which you can find if you can be bothered, there is about as much out there as there is about reverse-swing in cricket. Basically it is believed that there are microscopic scratches and imperfections in the surface of the ice which add a bit of friction and so the rotating stone gets the tiniest amount of “grip” which causes it to turn.

Why Heb has kept quiet on all of this is another mystery, maybe he just likes seeing you suffer. As Peeder suggests, maybe you should change your moniker to “I’m Not Spartacus and Thank God For Vidal”. It does have a certain ring to it.