What are SPECTRA ropes?
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SPECTRA® Double Braided\n\nOne of the most popular high performance lines, G-Force is a double braided rope consisting of 100% polyester braided cover and a 100% Allied Signal's Spectra® braided core. It was engineered for General Marine, Industrial, and Commercial Fishing applications where extra low elongation and extremely high strength-to-weight ratio of Spectra® are required. Spectra® double braided rope often replaces wire of the same diameter. Great for Merchant Marine, Industrial, Commercial Fishing, and Recreational Boating applications. \n\nThis rope offers extremely high strength and low stretch, and is one of the toughest lines around. The HMPE minor tendency to creep is minimized with advanced core design, and this rope is much more tolerant of standard size sheaves than an aramid (e.g. Kevlar®, Twaron®) rope. Because the specific gravity of Spectra® is less than 1.0, size-for-size G-Force is one of the lighter ropes around. Downsize and your weight savings is twofold. This is one tough rope, built to withstand mistrals and gale force winds! The cover is a dazzling tri-color weave, a base color combined with two separate multi-tracers running in opposite directions.
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Maybe this explanation can help? http://en.wikipedia.org/wiki/Spectral_density
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Spencers had them a little while back, I actually found a pretty cool rainbow necklace from WalMart lol... also if you have any small little hippie shops around you that sells things like pipes and wicca stuff they're usually there (those places are all over here in New Paltz, NY)
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Running and Rope Jumping!
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they are within the visble range;\nThe series of lines in the hydrogen spectrum associated with transitions to or from the first energy level or ground state. It lies in the ultraviolet (Lyman-alpha at 1215.67 Å; Lyman-beta at 1026 Å) with a series limit is at 912 Å. The He II Lyman lines have almost exactly one-quarter the wavelength of their hydrogen equivalent (He II Lyman-beta, 303.78 Å; He II Lyman limit, 227 Å.)
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Spectrophotometer is a photometer (a device for measuring light intensity) that can measure intensity as a function of the color, or more specifically, the wavelength of light. There are many kinds of spectrophotometers. Among the most important distinctions used to classify them are the wavelengths they work with, the measurement techniques they use, how they acquire a spectrum, and the sources of intensity variation they are designed to measure. Other important features of spectrophotometers include the spectral bandwidth and linear range.\n\nFollow the link for more information.\n\nhttp://en.wikipedia.org/wiki/Spectrophotometer
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vasatrainer is one of the best \nthe website is in one of the other entries\nor you can simply purchase bungee cords and tie them around a pole and mimick the vasatrainer movements
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if you mean spectroscopy and related fields here's something.\n\nspectrum:  variation of intensity with frequency or wavelength.\n\nstudy of intensity of the radiation. Basically\nyou have an unkown source of light. You tell what frequencies\n(or colours) are how much intense.\nUsually it's of the following types\n\nOptical spectroscopy (visible light)\nX -ray spectroscopy\ninfrared spectroscopy\nneutron spectroscopy\nthomson spectroscopy\nradio\n\nspectra can be absorption or emmision. \n\natomic specroscopy\nmolecular spectroscopy\n\nall this info can be used to study known materials\nand find composition of un-known materials.\nhealth purposes too
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the wire is magnetized, which can be either through the action of another magnet, or by its being coiled and run through by an intensity
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Does it have grommets or can they be added?  You can attach weights to ropes through grommets and let them hang over the outside.
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Your nearest rainbow? Just kidding!\nTry this site: http://physics.nist.gov/PhysRefData/Elements/legend.html
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One good one for gym equipment could be, "Don't be a dope, stay off the rope".  Might work.
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I don't know the name since I saw it in a western only now I can't remember which one it was. Anyways, what you do is get a bar about a foot in length and tie a piece of rope in the middle of it long enough that it almost hits the floor when held at mid waist. At the end of the rope put a weight or something that weighs about 3-4lbs on it. Then by rolling your wrists and turning the bar, roll the rope on the bar and then let it down again by doing the same motion only backward.
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http://www.faceadrenalin.com/bloukrans_river_bridge.htm\n\nHere you go.\n\nI searched this 'worlds highest commercial bungee jump'
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Maybe try www.elance.com.  They have a listing of people who do contract work.
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http://www.emsb.qc.ca/laurenhill/science/equip.jpg
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I've never heard of it in quite that term? but what I think you are referring to, is the onboard Crane, Davits, block & tackle, or Chain Bindings. \n"Equipment to assist in moving onboard cargo". Since Ships pitch & roll to the seas in a storm. They are required to secure the ships cargo from shifting. If this were to happen... The vessel could loose stability, & list to one side, to possible catastrophic affect.