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12 hours ago, Devil's advocaat said:

We've done this before, but once again, it's about force, which is a result of mass x acceleration.

 

Yes, the old ball was heavier, but because of this, the velocity of the ball was much less (look at old pathe reels, wee looping crosses).

 

Because its a lighter ball, then it can be fired in at a much higher speed, resulting in an equally high force.

 

And factor in the players are physically far more advanced than ye olden days, and you'll realise the force is higher.

 

I

You're quite right; I hadn't factored in the physics. It can hurt if you're hit by a tennis ball.

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4 hours ago, Devil's advocaat said:

Aye, if they're both falling from the same height, but you see clearances going way higher than the old balls did.

Since no one has yet quantified the force required to induce brain damage, or the number of impacts, or the period over which impacts are applied, it's all totally academic anyway. Decisions will be taken based on theory and statistical correlation rather than empirical evidence.

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