A cone-shaped paper drinking cup is to be made:?
822086
The volume is V = pi*r^2*h/3 = 27.  So h = 81/(pi*r^2).\n\nThe amount of paper is the surface area without the base of the cone which is A = pi*r*sqrt(r^2+h^2)  Substitute for h:\nA = pi*r*sqrt(r^2+81^2/(pi^2*r^4))\n= sqrt(pi^2*r^4 + 81^2/r^2)\nSince the square root is an increasing function you can minimize sqrt(f) by minimizing f.  So minimize\npi^2*r^4 + 81^2/r^2\nThis differentiates to\n4pi^2*r^3 - 2*81^2/r^3, which must be equal to zero.\n4pi^2*r^3 = 2*81^2/r^3\n2pi^2*r^6 = 81^2\nr=(81^2/2pi^2)^(1/6).  If my calculations are correct you can figure out h from this...
528650
GO TO A SPORTING GOODS STORE AND GET A CUP FROM THEM THEY HAVE ALL SIZES
874138
if u want to make a good sciences project and u want it easy take a cup and add watter and then grab a piece of cardboard and and cover the glass and then turn the cup upside down and then the water wont fall ok
907704
First I want to say YEAH RIGHT! Like you are just curious and not wanting to make something for yourself to use . Haha!\nI don't know of any sites but I know you can use a soda can. My friends and I made a water bong from one of those tall amusment park cups back in the day. \nGood luck =)
333462
can you please pee in this cup
1134656
Liquid takes the shape of its own container.
85839
A Coffe cup w/your co's name on it...full of goodies like gourmet hot coacoa and tea bags.
641728
see how much weight each surface can hold up. I know u can keep a needle afloat in a cup of water. Although the experiment would depend on what kind of paper and how damp it was.
120304
Just get a piece of plastic sheeting..Suspend it off the ground 6 inches..Put a weight of some type in the middle, to form a downward cone..thats about it..You might also look it up in your Boy Scout Hand Book..its a good read.
254615
You would need to make a distiller of sorts - the sun's rays could evaporate the pure water, and you would just need to capture the water vapor - use a leaf or something similar to direct the vapor into a cup.  \n\nHere's a link on PBS Kids that explains it. Of course, on a deserted Island, you might not have plastic wrap, but you could very well improvise.
320827
I think you may be talking about a volumetric flask, shown on this page:\n\nhttp://www.hometrainingtools.com/catalog/chemistry/glassware-plasticware/cat_beakers-flasks.html?products_begin=20
898643
thats a simple one, the paper bag is "crumpled/molded/wrapped" around the bottle and since it is paper it will retain the shape of the bottle.  Usually this trick is performed on a table usually with the magician sitting down.  Using some misdirection, the magician carefully slides the bottle with paper around it to the edge of the table towards him and drops the bottle into his lap, when performing you must be sure you do it casually enough so the audience doesnt notice the drop, all while the bag retains the "bottle shape" then he slide the bag back towards the center of the table and then smushes the empty bag and the bottle has "magically" disappeared
451269
We would take a paper plate cut a hole through the center, pull the ribbons through the hole.  Attach bows to the plate. I think we used dessert size plates.
221672
I won't drink milk out of a glass it has to be a plastic cup.  Don't even ask why because I have no clue!  HAHAHAHA!
967829
For uneven shape , use graduated cylinder.\nFor regular shape, use vernier caliper or micrometer for more accuracy.\n\n(A graduated cylinder (Grad or graduate for short), also referred to as a measuring cylinder, is a type of laboratory glassware comprised of a tall cylinder with a range of calibrated markings that is used for visually measuring the volumes of liquids in a quantitative manner. A graduated cylinder can be made of translucent plastic or borosilicate glass such as Pyrex. Often, the largest graduated cylinders are made of polyethylene or other rigid plastic, making them lighter and less fragile than glass, but more difficult to sterilize.)\nFor more pl. visit:\nhttp://en.wikipedia.org/wiki/Graduated_cylinder
562695
make your own and upload it to cafepress.com and buy it from yourself
192184
Aluminum Foil\n\nNot a paper actually.