BLOG: Let's List All the Scientifcally Correct Concepts in The Golfing Machine

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Brian Manzella

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Correction....

Homer's Flail "Law" says the clubhead will decel when the left wrist bends or is rolled.

I am almost positive that Dr. Zick took that onto consideration.

BM
 
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ej20

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savydan said:
Suggestion: Somebody please offer a 1 or 2 sentence definition of what Lag Pressure is (or is supposed to be).
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When they talk about maintaining lag pressure,I am assuming they mean maintaining the flex in the shaft at impact and beyond.

Can this really be done with anything approaching a full swing?Can anyone physically maintain shaft flex at impact with the clubhead travelling at 100+ mph?
 
Steve Khatib

Steve Khatib

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Are you guys reffering to achieving the 'heavy hit'? If so, it is junk.

I do currently like the the grip types and hand relationships in the book. Although a flat left wrist is not an imperitive, rather a good idea.
 
cmartingolf

cmartingolf

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Science - Wikipedia, the free encyclopedia

"Science (from the Latin scientia, meaning "knowledge") is, in its broadest sense, any systematic knowledge-base or prescriptive practice that is capable of resulting in a prediction or predictable type of outcome. In this sense, science may refer to a highly skilled technique or practice.[1]"
 
trickyric67

trickyric67

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if flat left wrist were changed to forward shaft lean would it then be an imperative?
I find that what HK was getting at is important and that the literalists get a bit crazy with the symantics.
 
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Brian Manzella

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And More....

ej20 said:
When they talk about maintaining lag pressure,I am assuming they mean maintaining the flex in the shaft at impact and beyond.

Can this really be done with anything approaching a full swing?Can anyone physically maintain shaft flex at impact with the clubhead travelling at 100+ mph?
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No.

Steve Khatib said:
...the grip types and hand relationships in the book.
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Great stuff, but hardly hard science.


Steve Khatib said:
Although a flat left wrist is not an imperitive, rather a good idea.
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Yes it is.

cmartingolf said:
"Science (from the Latin scientia, meaning "knowledge") is, in its broadest sense, any systematic knowledge-base or prescriptive practice that is capable of resulting in a prediction or predictable type of outcome. In this sense, science may refer to a highly skilled technique or practice.[1]"
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Cool.

But, in the context of this thread and THE book, that kind of science is not PHYSICS or GEOMETRY.

trickyric67 said:
if flat left wrist were changed to forward shaft lean would it then be an imperative?
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No.

SJO said:
The ball goes where the clubface points at seperation, not impact.
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The ball starts omewhere between 70% and 85% where the TRUE clubface "points."
 
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tobell

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Homer's best achievement was his earnest attempt to be scientific. His concept of using both physics and geometry to evaluate and study the swing are his contribution, it created a shift in perception. Virtually every presentation of a scientific concept in TGM is flawed, but the shift in how we should perceive/study/comprehend the golf swing endures.
 
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tobell

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It's not unusual for science fiction to precede actual science...Jules Verne wrote Twenty Thousand Leagues Under the Sea in 1870. Sometimes it's the science fiction writer who lends vision to the scientist. Homer's TGM is probably more science fiction that science, but it's still a visionary and useful tale.
 
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tobell

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Homer's definitions of a Form I, Form II, and Form III lever appear to be scientifically valid...his application to these concepts to the golf swing...more metaphor than hard science.
 
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Brian Manzella

Administrator
dannyc said:
what happened to the limited commentary?

so forward shaft lean is not imperative?!?
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Well, the limited commentary is something that might as well be opened up to "unlimited" since there is no flood of nominations for the list.

You can hit a perfectly good driver with layback, and a perfectly rolling putt.

If you take enough loft, you can hit a 5-iron 7-iron height, and JUST AS COMPRESSED, from a teed up lie.

Not "imperative."
 
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twitch127

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What about centrifugal force?

What did Aaron Zick say about it?

Does centripetal force create centrifugal reaction? ie a force towards the centre creates a force away from the centre; Does centrifugal force contribute greatly to the expanding of the lever assembley or is it more the work of muscular force such as straightening the right arm and applying a lot of force through PP#1.

Surely the tighter and more effecient a players rotation the more speed the rotation creates and the faster the most distal point of the lever moves ie mph. Is this not a well timed kinematic sequence? This would alter the release point and hand path of a player. I know that the endless belt is not accurate but as a concept it helps explain this relationship between delivery of the power package and a players body rotation. It's all about timing
 
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dbl

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I took a quick run throgh the book for this thread, and 90% of it does not contain "science", just categorizations and opinions.

Beyond f=ma, there isn't much really.
 
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twitch127

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took a quick run throgh the book for this thread, and 90% of it does not contain "science", just categorizations and opinions.

Beyond f=ma, there isn't much really
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What about all the geometry in the book ; isn't geometry the "science" of relationships? The geometry is more important than the physics content in TGM in my opinion.

Brian, I listed some science out of the book so what is your answer? correct or incorrect?
 
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siksta

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Well we all agree that the golf machine is not the holy grail that theres some things proven wrong with it ok good i'm on the same page that as teachers we all made mistakes early in our career ok good. That there are scientists,bio -mechanics out there proving to us whats correct ok good. Just curious has anyone proven Dr. Aaron Zick wrong should i just believe or is there debate by other so called experts in the field they specialize in? As a teacher i appreciate all the free info Brian has given us from Zick but has this man been debated yet?
 
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