how springs are made?
476332
A spring can be made of many different materials, it is usually of higher carbon steels heated and then quenched at a proper rate to give you the spring constant that you want.
19524
I'm guessing your question is more to do with calibration of the scales. \n\nUsually, its calibrated against a standard of weight, traceable to an approved laboratory. Most of the spring based scales are based on, as the name goes, springs. These would be manufactured on with fairly repeatable characteristics, like the stiffness for example. Details of the exact calibration procedure might be available on the following page, and the links thereof.\n\nhttp://en.wikipedia.org/wiki/Weighing_scale
1074554
If you have a piece of wire and you increase its mechanical energy, for example by winding it into a spring and then compressing that spring, you can wonder what happens to that energy when the spring is dissolved in acid.\n\nWhen the energy is stored in the spring, it is because atoms have been pushed to a place which is away from their natural lowest-energy position.  You could say that by squeezing the spring, you are pushing the nuclei in the metal coil to be closer than they naturally want to be.  Because they are in a higher energy configuration than natural unstressed metal, when they are separated by the action of the acid, the atoms end up with more energy than they do in the unstressed case.  This additional energy manifests itself as heat.\n\nSo, in summary, if you took two identical springs, compressed one of them and left the other one relaxed, and dissolved them in identical acid baths, the acid bath which holds the stressed spring would end up hotter as the energy formerly stored in the spring is released as heat.
43064
please do not do this for a science project.  too common.  but if you really want to know...most ppl get a small coke bottle and mould clay around it to get the mountain shape.
202444
Go to the mfg site and look it up.\n\nWhat are the companies that made them?  You need to give more details and people can give more help!\n\nGo ahead right now and add additional details to this question!\n\nGO ON !!!!\n\nAPS
414371
vulcanised rubber is made by heating the rubber with sulphur.(by Charles Goodyear-1838)\nproperties:even in very high temperatures,it will not loose its elasticity, when the force is taken away it resumes its usual shape, the increased ability to carry weight, doesn't corrode easily.\neg:tyres & tubes, corks, rubber pipes, raincoats, slippers\nhope that helped-cheers!
578855
When a current passes thru spring a magnetic feid is produced since the current pases in same direction in all coils of spring the magnetic feild will have same direction i all coils. So the N and S poles of adjascent magnets (coils) come near and thus attract. This causes the epring to reduce its length
341583
They're igneous (made by cooling magma), metamorphic (heat/pressure/chemical change), or sedimentary/stratified (compressed layers).
825980
Elastic materials spring back to their original shape when they are stressed. Inelastic materials simply bend and stay bent, which is called plastic deformation.
308463
This is how things are made.
587571
Two approaches that I can think of from a non-physicist.\n\n1. Simply a marker over how far back it physically recoils; or\n2. A spring scale fixed to a point that measures the peak force pulling back against it (you could also use a G meter if available).\n\nGood luck
198754
The most common types of spring are:\n\n    * the helical or coil spring (made by winding a wire around a cylinder) and the conical spring - these are types of torsion spring, because the wire itself is twisted when the spring is compressed or stretched. These are in turn of two types:\n          o Tension springs are designed to become longer under load. Their turns are normally touching in the unloaded position, and they have a hook, eye or some other means of attachement at each end.\n          o Compression springs are designed to become shorter when loaded. Their turns are not touching in the unloaded position, and they need no attachment points.\n\n    * the leaf spring (flat springy sheet, used in vehicle suspensions. electrical switches, bows).\n    * the spiral spring (used in clocks and galvanometers).\n    * the cantilever spring which is fixed only at one end.\n\nOther types include:\n\n    * the Belleville washer or Belleville spring, a disc shaped spring commonly used to apply tension to a bolt (and also in the initiation mechanism of pressure-activated landmines).\n    * the spring washer, used to apply a constant tensile force along the axis of a fastener.\n    * the torsion spring (any spring designed to be twisted rather than compressed or extended).\n    * the gas spring, a volume of gas which is compressed.\n    * rubber band, a tension spring where energy is stored by stretching the material.
658774
I would think you would use the force created by compressing the spring.\n\nThis force is given by the equation:\n\nF = k(Li - Lc)\n\nWhere:\nF = force\nk = spring constant\nLi = uncompressed spring length\nLc = compressed spring length\n\nThe below link is for a calculator for this force.\n\nhttp://www.efunda.com/DesignStandards/springs/calc_comp_Fstress.cfm
563469
Traditionally, basketballs were made using a rubber bladder (like a very sturdy rubber balloon) sealed inside of a sewn leather case. Later, a cloth lining was added between the rubber and the leather to add strength. Today, basketballs are made of flexible plastic shaped by a mechanical mold. The ball is pressurized by pumping air through a small hole on its side. \n\nIt would be quite an undertaking to make a basketball yourself, but you could probably do it the old fashioned way if you really wanted to. You'd need to get some leather and sew the pieces together around a very sturdy inflated plastic ball or balloon. Sewing leather can be kind of tricky, but you can do it with a bit of practice and a tool called an awl.
492103
Assuming the spring doesn't release that bit of its potential energy as kinetic energy by decompressing as it falls, it will be released as kinetic energy as the pieces of the disintegrating spring are forced apart due to the stress placed on the object and the action of the acid weakening its structure (there's no such thing as instantaneous disintegration... even if it only takes a millionth of a second, it still took some time to happen).\n\nBeyond that, quite a bit more chemical energy will be released as the acid oxidizes the metal in the spring and causes it to disintegrate.
378368
Lets take a mattress, for example.\n\nThe more coils, the less spring rate.  More coils means there is more support because there is a heavier gauge wire used in the coils.  The coils take up more "air space".  This doesn't leave much room for bounce/spring.\n\nLess (number of) coils means there is more air space between the coils, and there is more room for the coils to bounce and move around.  :-)
245701
Yeah. That's how they make it industrially.\n\nH2 + Cl2 --> 2HCl\n\nIt's not easy however, because it'll make HCl gas. You have to dissolve that gas in water for it to become hydrochloric acid. It also is highly exothermic, meaning it produces a lot of heat. Oh, by the way, if the gas comes into contact with your skin (you're made of mostly water), it'll form concentrated hydrochloric acid, right on your skin. Not fun. \n\nAn easier way is to making a dissolved table salt solution and add sulfuric acid, although obtaining sulfuric acid isn't easy either.\n\n2NaCl + H2SO4 --> 2HCl + Na2SO4\n\nDon't do it. You don't even know if it's chlorine and hydrogen gas, and you could get hurt very badly.