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Why choose five smooth stones?

razeontherock

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Wow.. such force.. not only to go through a helmet but also made a great dent into the skull, just like a bullet.

So now I have got to thinking...

How far was David from Goliath?
How fast can a sling throw a stone?
How much force is necessary to penetrate a helmet and make a dent in a skull?

I have used a sling to throw a huge heavy stone. It went on a straight trajectory for well over 100 yards, striking a very thick tree branch and bringing it down. But there is no way David used the sling to fight off anything at close range, it takes too long to set it in motion. Unless the lion and bear were willing to hold still and watch?

Slings are used to scare birds off fruit, which means you can be incredibly accurate with them. (I never got that much practice with mine)

I can't agree with the interpretation of David's rejection of Saul's armor. "Proving it" = training. David had 40 days to train with it! He didn't want to use it. He could have asked for something better fitting if that were the issue, but he didn't. He didn't want it. This story is all about G-d's Power, and David walking in it. The "uncircumcised Philistine" was there every day, taunting the armies of Israel. David didn't need to be in any rush to enter battle. But if he missed with that first shot, he wouldn't have had the chance to fire a second. And Saul's armor would have done him no good.
 
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visionary

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I have used a sling to throw a huge heavy stone. It went on a straight trajectory for well over 100 yards, striking a very thick tree branch and bringing it down. But there is no way David used the sling to fight off anything at close range, it takes too long to set it in motion. Unless the lion and bear were willing to hold still and watch?

Slings are used to scare birds off fruit, which means you can be incredibly accurate with them. (I never got that much practice with mine)

I can't agree with the interpretation of David's rejection of Saul's armor. "Proving it" = training. David had 40 days to train with it! He didn't want to use it. He could have asked for something better fitting if that were the issue, but he didn't. He didn't want it. This story is all about G-d's Power, and David walking in it. The "uncircumcised Philistine" was there every day, taunting the armies of Israel. David didn't need to be in any rush to enter battle. But if he missed with that first shot, he wouldn't have had the chance to fire a second. And Saul's armor would have done him no good.
Since you are the closest person to a resident slingshotter, maybe you can help me work out the schematics of trajectory and probabilities of this being a normal slingshot ability that can be reproduced any time.. or is this in the realm of God at work?
 
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Lulav

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David, being a shepherd would have been well trained in the use of the slingshot. His job was to protect the sheep, from any predetors, wolves, and bears and lions.

If you are just doing this as a hobby you need to take time and patience to wind up and aim, but someone who did this for a living would be able to get of a stone almost as fast as someone could shoot off a bullet from a gun and it's just as deadly.

I remember seeing something on this on TV. I couldn't remember where so I looked up on the history channel. This isn't what I saw but it is a quick tutorial on making a slingshot like David used.

Ancient Discoveries - Ancient survival tool= the Sling

Here's something from on the scientifics of how it works.

Energy of a Slingshot: David and Goliath
 
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pat34lee

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Since you are the closest person to a resident slingshotter, maybe you can help me work out the schematics of trajectory and probabilities of this being a normal slingshot ability that can be reproduced any time.. or is this in the realm of God at work?

In Judges 20:16, it says the tribe of Benjamin had 700 men who could sling stones at a hair's breadth and not miss. The sling is a very accurate weapon for those who train with it.
 
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visionary

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TanteBell ...It could be...
1 Samuel 17:16
And the Philistine drew near morning and evening, and presented himself forty days.


It just is that David had come and gone from Saul.. and returned... check out the verse before ...

15But David went and returned from Saul to feed his father's sheep at Bethlehem.
 
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razeontherock

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Since you are the closest person to a resident slingshotter, maybe you can help me work out the schematics of trajectory and probabilities of this being a normal slingshot ability that can be reproduced any time.. or is this in the realm of God at work?

Well first of all, a sling is different than a slingshot. The latter, think Dennis the Menace ^_^ A "sling," is effectively an extension of your arm, made out of wool. (Kinda why shepherds might have 'em, huh?) Mine came from Bolivia, so it was Alpaca or something. It's kinda like a rope, and you fold it in 1/2, and there's a pouch right there in the middle to hold the ammo.

Depending on how well situated your ammo is in the pouch, (round and smooth being more stable ;)) you then start spinning this thing around your head like it was a lassoo or something. Minimum revolutions is 3, with the release being like a pitcher's throw. Done right, it results in a "CRACK" not quieter than a .22, even with a small stone.

I really wonder why these weren't used in more modern warfare like our revolutionary war; the weapons they had didn't re-load very fast either. You really don't have the "frozen rope" trajectory of a bullet; normally not for over about 20 yards anyway. Has anybody here been to whatever valley it was that David met Goliath in? I'm thinking if they first faced off at less than 100 yards, no matter how fast Goliath might charge you could get 1 well-placed shot in, at a respectable distance. 20 yards might be ideal? If he had that much space, would he have been able to take a second shot if needed? Originally I was thinking of the first shot missed, he'd better get his sword and shield ready, but maybe there was more time?

I think the "G-d territory" comes in, with performing perfectly under pressure. You really have no room for error! Think of a medium-small stone going on a straight trajectory for 20 yards, with no arc. Yeah, that'll do some damage if it hits it's target. The one really good long distance shot I got off, the rock was well over 2 lbs and there was no sign of any arc for literally over 100 yards, so that gives you some idea of the kind of power these things can generate when you use it just right. (That one shot also did my sling in, it kinda disintegrated from it) So the bigger the ammo, the straighter the trajectory. That's my observation anyway. Due to momentum?
 
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razeontherock

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In Judges 20:16, it says the tribe of Benjamin had 700 men who could sling stones at a hair's breadth and not miss. The sling is a very accurate weapon for those who train with it.

:thumbsup: Lulav's link shows a good idea of what one looks like. That one is made of leather, although David probably had one of wool like mine. (?) Anyway, my type was used by children to ward off birds from fruit trees! Think about that; you can't hit the fruit, but you can hit the bird ...
 
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visionary

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The sling derives its effectiveness by essentially extending the length of a human arm, thus allowing stones to be thrown several times farther than they could be by hand. As a girl, I wasn't bad at throwing the baseball from way out in right field to the short stop, sometimes as far as 70 yards. I am sure that it would be easy to get some power behind an object being projected from a sling shot.

David_with_sling.jpg
 
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razeontherock

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@ post #75: Yup! But we're talking about a sling, not a slingshot. It does "extend the arm," in effect. But it does NOT load and re-load quickly. You can't just raise it up and bring it down once like you can with your own arm, you have to set it in motion, seeing as it's flexible. Minimum of the third revolution, you can bring it down to full effect. A variety of releases are available too; sidearm, straight down, etc. (As a catcher in Junior High, I could nail 2nd base on the money on one knee)
 
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T

TanteBelle

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TanteBell ...It could be...


It just is that David had come and gone from Saul.. and returned... check out the verse before ...

1 Samuel 17:15 But David went and returned from Saul to feed his father's sheep at Bethlehem.

16 And the Philistine drew near morning and evening, and presented himself forty days.

17 And Jesse said unto David his son, Take now for thy brethren an ephah of this parched corn, and these ten loaves, and run to the camp of thy brethren;

To me, that reads; 'And David left Saul to go feed his father's sheep and then the Philistines came .... then Jesse sent David'. So, to me, David was feeding the sheep those 40 days. But anyway, this is a superfluous debate. :D
 
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razeontherock

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@ post #76: I take exception to that diagram. I tried it that way, and it's just too clumsy. (No offense to girls fast pitch softball) You spin it around overhead, like a lasso. All you're doing is getting it taught, so that on the release you have not only control, but full power. Wool has some elasticity to it, which really adds to the force. I didn't find that spinning it as fast as possible added anything, but I sure tried ^_^

Much like a baseball, it's all in the release. Instead of the snap coming from the wrist, you can put not only your shoulder, but your whole body into it. The first part to tire is still your shoulder which takes some wear and tear, but you're using WAY bigger muscles than you can employ when throwing a baseball, and of course you have all that added leverage. If Lulav's video is correct, maximum (and ideal) is double your arm length.

What does the math for that look like?
 
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