Naked Science Forum
On the Lighter Side => New Theories => Topic started by: tony6789 on 09/02/2007 18:03:38
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If u tied a string to a house celing and on the other end woud b 1 thousand pounds wat wud happen?...my theory is that the celing wub fall b4 the string broke
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you get a big hole in the floor of course [^] [^] [^]
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well yea no kidding man
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well yea no kidding man
LOL [:)]
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You get a lot of complaints from the neighbours too [;D]
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If u tied a string to a house celing and on the other end woud b 1 thousand pounds wat wud happen?...my theory is that the celing wub fall b4 the string broke
Sorry but I don't understand how are the string and the weight put. Can you explain better?
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its like ( imagine) u have a string tied to the celing stright up and down so that the other end of the string is pointing twards the floor. and at the other end of the string is a thousand pound wieght...im saying that the celing wud break b4 the string wud (or the knonts)
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I think this might depend on how well fixed th string is to the weight and how well fixed the other end of the string is attached to the ceiling.
Assuming the string was fixed so that it is very sturdy and you then lifted the weight up a little way and then dropped it..I think the string would break first
[diagram=163_0]
LOL...what a crap picture !
Having said all this ...it really also depends on the strength of the string but me reckons Tony if it's your bog standard string then I think it will fail first !!
If the string was like....well strong....then you can say hello to a hole in the ceiling and a crater in your floor if the weight was lifted and dropped !!
OK...it will also depend on the strength of the ceiling etc etc etc....
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its like ( imagine) u have a string tied to the celing stright up and down so that the other end of the string is pointing twards the floor. and at the other end of the string is a thousand pound wieght...im saying that the celing wud break b4 the string wud (or the knonts)
Does that not depend on the design of the string, and the construction of the ceiling (and maybe even the construction of the weight - after all, don't forget that the weight itself might fall appart, unable to take its own weight).
Most ceilings in domestic dwellings are just a thin plasterboard that is not meant to take any weight, but the joists above are meant to take the weight of the floor above the ceiling, and it is to those that you would normally attach anything of any weight.
Ofcourse, it also depends on how widely you spread the weight. A 1000 lb weight, spread over 100 square feet, is only 10 pounds/square foot, but if you connect that the weight to the ceiling at a point that is 1/10th of an inch squared (1/14400th of a square foot in area) then the 1000 lb weight produces a force of 14.4 million pounds to the square foot at the point of contact.
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ok..umm idk how to explain this....say its just an average string u find lie around...and u have the smart idea of seeing which will break first the string or your(normal house..average celing) celing if u were to tie the other end of the string to the wight...evenly distributed on the wieght. the wieght looks like the kinda wieght ud see on cartoons like an anvil thing if thats wat ud call it. I argue that the celing wud break first becasue of all the wieght that the thousand pound wieght is getting from the gravity pressure on it.
The string wud stay intact because its not being ripped apart..its being pulled so that makes it harder for the string to break. More to my side is that celings aren't ment to hold more wieght than they are built to hold...if u add more it will crumble and break.
So HA! lets see some1 swallow that..beaten by a 14 yr old..lol
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You still have not told me how you attach the string to the ceiling?
As I said above, the plasterboard that provides the visible face of the ceiling is very week (as shown by the number of people who, when working in their attic, if the attic has no flooring on it, and if they are not careful enough about only stepping on the load bearing joists, can easily put their foot straight through the plasterboard of the ceiling of the room beneath).
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It would depend whether the thousand pounds was paper money or coins [:D]
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umm u tie it? lol that is not part of the experiment...tho
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It would depend whether the thousand pounds was paper money or coins
Im glad I know what you mean by pounds, or I wouldn't get that joke.
Can I have a thousand pounds?
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lol meatal pounds
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umm u tie it? lol that is not part of the experiment...tho
Tie it to what?
The only thing one can reasonably tie a piece of string to is the joists, but the joists are load bearing structures - which is why it is important to know how it is attached, because that will effect where it is attached (whether to a load bearing component of the building, or just a facade).
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a hook ..omg lol
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I think you would need a fast frame camera to see the roof break before the string because they it would seem to our eye that they would break at the same time.
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yea i can visualize that but if the celing breaks it breaks....if the string breaks it breaks so no u dont need one
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no nvm u wudn need 1 man
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wtf where is my signature? NIEL!!!!!! FIX IT!!!! grrrr
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Keep to the subject, and give Neil some time. Patience is a virtue.
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yea i can visualize that but if the celing breaks it breaks....if the string breaks it breaks so no u dont need one--tony6789
Huh?
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a hook ..omg lol
And what will the hook hook on to (the cieling is a flat surface)? What shape and size is the hook?
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There are too many variables that tony6789 is not being specific enough about. If I had more info to get rid of the hundreds of variables...maybe I could find out..with the help of my physics genius brother Don.
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wat kinda variables?
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wat kinda variables?
peas, carrots..oh variables
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wat kinda variables?
peas, carrots..oh variables
I don't get it...
wat kinda variables?
What type of string? What kind of ceiling? Is the ceiling slanted? What shape is the weight? Box? Cylindrical?