It seems that everywhere we look, the world is a tangle, tangled extension cords, holiday lights tangled, tangled strands of boxes, cables behind the computer desk. And not a bird's nest of cables that go with our mobile devices such as MP3 headphone cable, headphone and cell phone car chargers, etc. and forget
Have you ever wondered how clean spiral, carefully preserved in the computer is equipped with all the cables tangled on your own? Researchers at the University of California at SanDiego, a study of things such as strings (strings like. ..) and tangled knots published form. Your work will be used to understand how important the nodes that are formed in DNA strands found.
Sometimes things get a knot appears to be a plus, as in the aforementioned DNA, but in dealing with the portable device is a cable-clutter a nuisance.
From the point of view, the duration is one of the problems with cables that come with portable devices, which shareWire is very small. That is, are especially thin to be easy. The result is that the cables are subject to failure because of their low mechanical strength. Although the hand, pulling gently, each train of the line gives you a twist of wire inside the insulation, which could further weaken the cable. To make matters worse, these cables often come out of your purse or bag in a maze and sorting system of trains and cable supplemented by another, thePossibility of damages.
In the mobile phone accessory, some manufacturers have developed a method, invented by eliminating the nodes connected to portable devices and bulk material with a hook.
Retractors for stereo headphones, mobile headphones, 3.5mm stereo auxiliary cable, USB cable, car charger, and many of the cables we use to connect, sync and charge portable devices are used.
In the heart of the wound retractor is a flat metal spring-shaped coil and mounted on aspool in a rugged ABS plastic case. During the manufacturing process of the coil spring is tightly wound and held in position by an internal mechanism. Then in the middle of a straight wire is placed at the center of the retractor and the lock is released, so that each side of the cable to be wound onto the reel. To extend the cable to use both ends of the cable is pulled at the same time. The effect of the extension of the cable, the back voltage in the coil spring and a blockMechanism holds the cable extended. Simultaneously pulling on both ends of the cable solves the mechanical lock, and the coil spring pulls the cable back on the hook housing.
The center-winding retractor as described above synchronization for stereo headphones and USB cable charging, auxiliary stereo cable and all cables, which have both ends are connected to a device. Another type of hook is called the end-winding retractor used in car charger, where you end up with a plug for himselfa portable device, and at the end is another charger. The end winding retractor uses the same type of spring in the mid-winder, but the cable is coiled around the inner coil, like a garden hose on a reel.
In both cases, not all of the spring tension when the cable is released. Even when fully retracted into the box, the coil spring provides a small amount of tension to hold the cord tight and withdrawn out of the way, ready for the nextto use.
While science continues to make significant progress in understanding a complex world (and, indirectly, as a box of old rope in the garage to go Chaos) to continue design efforts in order to make real use of this modern science easy life, convenient, and in some cases even without the added bulk.
Here is a link to the article string UCSD Division of Physical Sciences.
