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Clarity on Passing

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Scarfman

Knitter of the Scarf
Is it too late to vote for thread of the year?

I don't know about Rule 6, but I think I see Rule 10 approaching slightly faster than the speed of light.
 

Swat

Chilla Wilson (44)
confused.jpg
 

Schadenfreude

John Solomon (38)
OK I accept this is off topic, but let's at least get our definitions right.

General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916.[1] It is the current description of gravitation in modern physics. General relativity generalises special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. In particular, the curvature of spacetime is directly related to the four-momentum (mass-energy and linear momentum) of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of partial differential equations.


the issue posed by the words of the law is: what was the motion of the ball relative to the hands at the time of release?

And those words aren't in the law. Could you perhaps post the law and highlight that section?
 

BPC

Phil Hardcastle (33)
Unlike league (originally) the law makers in union understood Einsteinian relativity.

I seriously doubt that.

Further, you failed to make it clear that your explanation only applies to inertial frames of reference. Perhaps your failure to define the correct frame of reference has confused Schadenfreude. Or maybe it is because you haven't mathematically derived the full Lorentz-Fitzgerald transforms.

Or the confusion could arise from the fact that the law is poorly written and does not clearly define the correct inertial frame of reference. The video corrects this, but the video is meant to be an explanatory aid and is not the actual "law". Perhaps the IRB should just draft the law properly, otherwise why bother with laws at all?
 

Inside Shoulder

Nathan Sharpe (72)
The laws as they stood in 1871 provided:

26. It is lawful for any player who has the ball to throw it back towards his own goal, or to pass it back to any player of his own side who is at the time behind himi n accordance with the rules of on side.

22. Every player is on side but is put off side if ... when the ball has been kicked, touched or is being run with by any of his own side behind him (i.e. between himself and his own goal line).

27. Knocking on...and...throwing the ball in the direction of the opponents' (sic) goal line are not lawful.
 

Schadenfreude

John Solomon (38)
You can and will take it any way you want.
Each proposition you have put is an ipse dixit.
I am endeavouring to limit the irritation caused to other members of this forum by not repeating myself or prolonging this debate.
It's an interesting assertion - to characterise the quoting the laws and references as "ipse dixit". Especially since your assertions can't be traced (or at least you refuse to) back to any source; AND you keep referring back to yourself in your own argument.

This link might help you http://en.wikipedia.org/wiki/Irony
 

Bruwheresmycar

Nicholas Shehadie (39)
You only need Newton's laws to have a reliable mechanism of judging whether a pass is forward or not. Going to Einstein's theories will just complicate things and he doesn't deal with problems like "forward passes", he deals with the dimension of space-time. He does use some of the same simple principles others used before him, so you could say they are both right to end this argument LOL.
 

Inside Shoulder

Nathan Sharpe (72)
mate, there are links all over my posts taking you to the sources - the few links you provided lead nowhere. There was a link to the law in post #3: so this is all a furphy.
By the way its "an ipse dixit" not "ipse dixit".
 

Schadenfreude

John Solomon (38)
You only need Newton's laws to have a reliable mechanism of judging whether a pass is forward or not. Going to Einstein's theories will just complicate things and he doesn't deal with problems like "forward passes", he deals with the dimension of space-time. He does use some of the same simple principles others used before him, so you could say they are both right to end this argument LOL.
You could - if the people who created the laws of rugby travelled forward in time past 1916, learned about General Relativity, realised that classical mechanics covered the laws of rugby off just fine, and then travelled back to finish writing them.
 

Inside Shoulder

Nathan Sharpe (72)
Yes but you continually reference things in the laws which aren't there.
http://en.wikipedia.org/wiki/Ipse_dixit

Edit: I don't think "An ipse dixit" is Latin - do you?
I dont write in latin. The expression describes a thing.
I'll type this slowly:

Law 12 reads, in part:
A throw forward occurs when a player throws or passes the ball forward. ‘Forward’ means towards the opposing team’s dead ball line.



From the dictionary link I provided above "throw" means:
"To propel through the air with a motion of the hand or arm"
"pass" means: A motion of the hand or the waving of a wand - Can we agree that one passes the ball using one's hand or hands?
Thus a throw forward occurs when someone propels the ball with their hand or arm forwards.

"Forwards" is defined by the law to mean towards the opposing team's dead ball line.

So, the law means "propelling the ball with hands or arms toward the opposing teams dead ball line".

The word propel is important: "to impel, drive, or cause to move forwards" (same source)

Accordingly the law means:

"to impel or drive the ball with hands or arms toward the opposing teams dead ball line"

The words you are worried about are contained within bigger words - thats what those longer words actually mean. They are the concepts invoked by "throw": the law makers assumed readers would have a concept of the things encompassed by words such as "throw".

For my part I would define propel as "to impart motion to".

That would mean that the law's construction is: "to impart motion to the ball with hands or arms toward the opposing teams dead ball line".

Just a simple matter of construing a straightforward collection of words.
 

Schadenfreude

John Solomon (38)
So, the law means "propelling the ball with hands or arms toward the opposing teams dead ball line".

Well "Throw Forward" doesn't bear deconstruction - since it's a noun, but if you'll allow me:
Reconstructing Law 12 this way we can say:

A "Throw Forward" happens when a player releases the ball into the air with their hands towards the opposing team's dead ball line.​

We can also compare the rule to the knock on rule:

DEFINITION: KNOCK-ON

A knock-on occurs when a player loses possession of the ball and it goes forward, or when a player hits the ball forward with the hand or arm, or when the ball hits the hand or arm and goes forward, and the ball touches the ground or another player before the original player can catch it.
‘Forward’ means towards the opposing team’s dead ball line.

Can we agree that if a player is tackled hard, the ball is dislodged and it travels forward with it's natural momentum, that is indeed a knock on?
 

Inside Shoulder

Nathan Sharpe (72)
What sort of bear? Koala? 'cos that's not really a bear.....

The process engaged in is construction not deconstruction. The process is relevant whether a word is a noun or not.

Throw forward: That is not what the law means - it is not what it says. "release" is passive whereas, IMO, "throw" is active.

This thread is about a throw forward. But what is "natural momentum" and where did the ball get this natural momentum from?
 
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