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burhan101
Group Title
Fermi Problem:
How many paper clips in a jar with the following ?
The Jar: 6.5 litre capacity
Length and width of 1 paper clip: 2 x 0.5 inches
 2 years ago
 2 years ago
burhan101 Group Title
Fermi Problem: How many paper clips in a jar with the following ? The Jar: 6.5 litre capacity Length and width of 1 paper clip: 2 x 0.5 inches
 2 years ago
 2 years ago

This Question is Closed

radar Group TitleBest ResponseYou've already chosen the best response.1
Since there is no dimension given for the paper clip thickness, there could be a whole lot, an infinite amount.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
^ has a point there.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
convert the 6.5 liter to cubic centimeters. convert the dimensions of the paper clips (when you have all 3) length, width, and depth) to centimeters. Convert to cubic centimeters and divide into the cubic centimeters of the jar. That would be one method, but in this case, I would borrow a whole bunch of paper clips and fill the jar, then count them.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
I don't know how to calculate the space used up by a paperclip. Maybe find its displacement in water...????
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
I know the Fermi Problem method is to make an 'order of magnitude estimate.' 6500cc's by (I'd estimate 1.25cc's per paper clip) I'd get around 5000, but given the margins of error (which are large), I'd put the orders of magnitude between 1,000 and 10,000
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
@radar, I don't think the exact volume of the paperclip would help since their negative space contributes as well (stacking problem). There is also the issue of unperfect (random) stacking from the assumed 'justpourabunchofpaperclipsinthere' method of filling the container.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
Oh, I was completely off base, as I wasn't even considering Fermi, is this the same Fermi that did work in quantum mechanics and in semiconductors?
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
^ Yeah, Richard Feynman talked about him a lot and spoke of this method.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
Yes I agree, the geography of a paper clip would preclude an orderly calculation.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
I think he used 'backoftheenvelope estimate' as a descriptor as well.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
Thanks, I learn a lot from this Open Study.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.1
Nice chatting with you CliffSedge.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Same, Mr. radar. What do you think, @burhan101 ?
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
this is a really complex question, i have like a white board with stuff on it haha :$ still in the process of finding a reasonable way to approach this
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
The reasonable approach is to guess and not be too outlandish about it.
 2 years ago
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