Attention Smart Guys

[aunt betty]

Concrete has a density of 150#/cubic foot.
He has to fill the thing 1/3 the way or more with concrete to sink it.
Jehler, could you hide in a 40" deep hole"? I might be able to but it sounds like hobbit shit, hiding in barrels nonsense.

[(MT)Montanafowler]

seems stupid to me, it's gonna fill with water. plus it leaves another piece of trash permanently embedded in the landscape. also, what happens when a boat gets torn apart when it rips across the top of it?

[assateague]

Ok, this will come as no shock to most of you- I hate math.

That being said, it seems like there's some factors being left out. (Feel free to correct me if I'm wrong. Like I said, I try and ignore math if I can help it) Doesn't surface area have something to do with it? Yes, yes, I know, it's all about displacement, but still doesn't seem right. You're all envisioning (and figuring for) something like a pontoon being sunk to the bottom horizontally. Would it not take more weight to do such a thing than it would to sink it vertically? If he has a tube 4'x5', with a cap on both ends, it's going to take more weight to sink it sideways all the way to the bottom than it will to sink it like a lawn dart only partially. Right?

If the thing is laid on its side, it's going to have more surface contact area with the water than if it goes in end first. Matter of fact, I think I'm going to do an experiment. Be back in a bit.

[aunt betty]

Ok, this will come as no shock to most of you- I hate math.

That being said, it seems like there's some factors being left out. (Feel free to correct me if I'm wrong. Like I said, I try and ignore math if I can help it) Doesn't surface area have something to do with it? Yes, yes, I know, it's all about displacement, but still doesn't seem right. You're all envisioning (and figuring for) something like a pontoon being sunk to the bottom horizontally. Would it not take more weight to do such a thing than it would to sink it vertically? If he has a tube 4'x5', with a cap on both ends, it's going to take more weight to sink it sideways all the way to the bottom than it will to sink it like a lawn dart only partially. Right?

If the thing is laid on its side, it's going to have more surface contact area with the water than if it goes in end first. Matter of fact, I think I'm going to do an experiment. Be back in a bit.

Look up Archimedes principle of buoancy.
Surface area has nothing to do with floatation or a piece of paper would float.
Volume, density...displacement.
"An object is buoyed up by a force equal to the mass of liquid it displaces".
But dont believe me...ask Olly. Somehow I bet the coast guard has some idea of why a boat floats.

[jehler]

Ok, this will come as no shock to most of you- I hate math.

That being said, it seems like there's some factors being left out. (Feel free to correct me if I'm wrong. Like I said, I try and ignore math if I can help it) Doesn't surface area have something to do with it? Yes, yes, I know, it's all about displacement, but still doesn't seem right. You're all envisioning (and figuring for) something like a pontoon being sunk to the bottom horizontally. Would it not take more weight to do such a thing than it would to sink it vertically? If he has a tube 4'x5', with a cap on both ends, it's going to take more weight to sink it sideways all the way to the bottom than it will to sink it like a lawn dart only partially. Right?

If the thing is laid on its side, it's going to have more surface contact area with the water than if it goes in end first. Matter of fact, I think I'm going to do an experiment. Be back in a bit.

nope

[assateague]

Ok, math and dead Greek guys aside, here's the experiment.

Empty water bottle, with 8 oz weight attached in middle.

ImageUploadedByTapatalk1384272350.521857.jpg

It sinks it this much

ImageUploadedByTapatalk1384272367.505095.jpg

Same bottle, same weight, attached at neck

ImageUploadedByTapatalk1384272392.450636.jpg

It sinks this much (it wasn't quite on the bottom, so that wasn't a factor)

ImageUploadedByTapatalk1384272406.999236.jpg

While I'm sure if somebody calculated the volume of the bottle which was underwater, it's be the same, there is a noticeable difference in how FAR under the water it went. No idea what the equation is, but like I said, I'm sure there's something that needs to be figured for the shape when it comes to buoyancy, and how much of the shape is available to displace. From a theoretical perspective, there's no difference, but the practical side seems to indicate that it does matter (shape, direction, etc)

[NuffDaddy]

Nope. Doesn't matter. Same amount of air will be underwater weather it's vertical or horizontal. It might sit deeper vertically, but it will also stick out of the water further.

[assateague]

But that's what I'm saying- the orientation of the shape DOES matter when it come to depth. Will a right side up pyramid float as deep as an upside down pyramid? Nope. But they will both displace the same amount of water.

So get back to your books, smart guys, and give him a helpful answer, not a theoretical one.

[(MT)Montanafowler]

But that's what I'm saying- the orientation of the shape DOES matter when it come to depth. Will a right side up pyramid float as deep as an upside down pyramid? Nope. But they will both displace the same amount of water.

So get back to your books, smart guys, and give him a helpful answer, not a theoretical one.

i think you and I have the same problem with math, it's all based on theoretical information (AKA bullshit)

[assateague]

And 98% of it is completely useless to the average person in the real world.

[The Duck Hammer]

But that's what I'm saying- the orientation of the shape DOES matter when it come to depth. Will a right side up pyramid float as deep as an upside down pyramid? Nope. But they will both displace the same amount of water.

So get back to your books, smart guys, and give him a helpful answer, not a theoretical one.

i think you and I have the same problem with math, it's all based on theoretical information (AKA bullshit)

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

[NuffDaddy]

But that's what I'm saying- the orientation of the shape DOES matter when it come to depth. Will a right side up pyramid float as deep as an upside down pyramid? Nope. But they will both displace the same amount of water.

So get back to your books, smart guys, and give him a helpful answer, not a theoretical one.

But in the end it would take the same amount of weight to sink it. That is what he was asking.

[waterfowlman]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

[The Duck Hammer]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

[(MT)Montanafowler]

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

unless you're launching shit into space, you're overthinking it. buy ten bags of concrete, use what you need, sell the rest at a slight loss or keep it around for another project. Assa nailed it, 98% of math is absolutely useless to the average person.

for the record, the Egyptians built the fucking pyramids with little more than base 10 numbers, fractions, some multiplication, and a few thousand jew slaves.

[The Duck Hammer]

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

unless you're launching shit into space, you're overthinking it. buy ten bags of concrete, use what you need, sell the rest at a slight loss or keep it around for another project. Assa nailed it, 98% of math is absolutely useless to the average person.

for the record, the Egyptians built the fucking pyramids with little more than base 10 numbers, fractions, some multiplication, and a few thousand jew slaves.

They stacked fuckin blocks on top of one another. A 4 year old could figure that out. And for the record I'm all for stacking weights on shit till it is how I want it.

[goodkarmarising]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

If I could buy lead at $0.35 cents a lb, I would be buying 1k lbs at a time...I buy scrap lead at $0.50 cents a lb and have to melt it down, if I bought lead from the scrap yard, it would be $1 a lb or more.

[(MT)Montanafowler]

They stacked fuckin blocks on top of one another. A 4 year old could figure that out. And for the record I'm all for stacking weights on shit till it is how I want it.

bullshit, they have intricate pathways inside of them.

[3legged_lab]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

If I could buy lead at $0.35 cents a lb, I would be buying 1k lbs at a time...I buy scrap lead at $0.50 cents a lb and have to melt it down, if I bought lead from the scrap yard, it would be $1 a lb or more.

I pay 25 cents per pound.

[goodkarmarising]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

If I could buy lead at $0.35 cents a lb, I would be buying 1k lbs at a time...I buy scrap lead at $0.50 cents a lb and have to melt it down, if I bought lead from the scrap yard, it would be $1 a lb or more.

I pay 25 cents per pound.

I wish...how do you pick up lead that cheap?

[3legged_lab]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

If I could buy lead at $0.35 cents a lb, I would be buying 1k lbs at a time...I buy scrap lead at $0.50 cents a lb and have to melt it down, if I bought lead from the scrap yard, it would be $1 a lb or more.

I pay 25 cents per pound.

I wish...how do you pick up lead that cheap?

I usually put it in a bucket since its kinda heavy.

[3legged_lab]

Friends with a couple of the guys at the scrap yard

[capt1972]

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

unless you're launching shit into space, you're overthinking it. buy ten bags of concrete, use what you need, sell the rest at a slight loss or keep it around for another project. Assa nailed it, 98% of math is absolutely useless to the average person.

for the record, the Egyptians built the fucking pyramids with little more than base 10 numbers, fractions, some multiplication, and a few thousand jew slaves.

[one2many]

was looking for that.
well done

[jehler]

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

unless you're launching shit into space, you're overthinking it. buy ten bags of concrete, use what you need, sell the rest at a slight loss or keep it around for another project. Assa nailed it, 98% of math is absolutely useless to the average person.

for the record, the Egyptians built the fucking pyramids with little more than base 10 numbers, fractions, some multiplication, and a few thousand jew slaves.

They stacked fuckin blocks on top of one another. A 4 year old could figure that out. And for the record I'm all for stacking weights on shit till it is how I want it.

you guys are nuts, way tons of math went into building the pyramids, I'm not saying it was aliens, but there were aliens

[jehler]

Math is not theoretical. Unlike other things it proves itself. He asked how much weight a tube that size would hold up. You would have to factor in water temp, air temp, surface area, air pressure, vapor pressure, etc. to come up with the exact answer you're thinking of here.

unless you're launching shit into space, you're overthinking it. buy ten bags of concrete, use what you need, sell the rest at a slight loss or keep it around for another project. Assa nailed it, 98% of math is absolutely useless to the average person.

for the record, the Egyptians built the fucking pyramids with little more than base 10 numbers, fractions, some multiplication, and a few thousand jew slaves.

fuck, bmti

[The Duck Hammer]

A cubic foot of lead weighs 708 pounds and would take up much less interior space than concrete....just saying.

How much is lead now? Last time I bought some it was .35 cents a pound. So at that price a cubic foot would only cost $250.

If I could buy lead at $0.35 cents a lb, I would be buying 1k lbs at a time...I buy scrap lead at $0.50 cents a lb and have to melt it down, if I bought lead from the scrap yard, it would be $1 a lb or more.

I pay 25 cents per pound.

I haven't bought any in about 3 years, need to make some more weights.

[The Duck Hammer]

They stacked fuckin blocks on top of one another. A 4 year old could figure that out. And for the record I'm all for stacking weights on shit till it is how I want it.

bullshit, they have intricate pathways inside of them.

So they put a bigger fucking block over two smaller blocks with a gap. Real brilliant.

[RonE]

Ok, this will come as no shock to most of you- I hate math.

That being said, it seems like there's some factors being left out. (Feel free to correct me if I'm wrong. Like I said, I try and ignore math if I can help it) Doesn't surface area have something to do with it? Yes, yes, I know, it's all about displacement, but still doesn't seem right. You're all envisioning (and figuring for) something like a pontoon being sunk to the bottom horizontally. Would it not take more weight to do such a thing than it would to sink it vertically? If he has a tube 4'x5', with a cap on both ends, it's going to take more weight to sink it sideways all the way to the bottom than it will to sink it like a lawn dart only partially. Right?

If the thing is laid on its side, it's going to have more surface contact area with the water than if it goes in end first. Matter of fact, I think I'm going to do an experiment. Be back in a bit.

The short answer is "no". The long answer is "no sir".

[Bufflehead]

seems stupid to me, it's gonna fill with water. plus it leaves another piece of trash permanently embedded in the landscape. also, what happens when a boat gets torn apart when it rips across the top of it?

Most waterfowl hunting here is done from permanent blinds. That is the only way you can legally hunt and the blind has to be registered, has to be 500 yards from any other blind. Basically the shoals/shallow areas here look like a grid of blinds 500 yards apart. All hunting has to be done from licensed blinds


There are 125 boat blind license, in a county that has about 35,000 residents and once you get one it's yours until you give it up or die. So they're not given out very often and when one is up for grabs, there's usually 100 applications for it.


As far as filling with water, they make buckets while you sleep. They are intentionally filled when not being used.