TOP backpacks for computer geeks and more

In this article I will describe the best backpacks around the world. I found four smart backpacks in general:

TOP 4	Tumi company released a limited edition of backpacks with an interesting feature. These backpacks have a built-in battery which will help you to charge almost any portable device. In addition, it is extremely ergonomic and practical.
TOP 3	SeilBag is a name of another smart backpack which has several features developed specially for cyclists. This backpack has small LED indicators and it is able to signal to car owners what direction the cyclist is going to take. Also thanks to special controller this bag is able to show various emotional signs and signals like “Stop” during heavy braking. The backpack was awarded by Red Dot Design Award 2010.
TOP 2	Another practical backpack named Picnic Plus Cooladio Solar Coole has a solar battery located on the top of the bag. This battery helps you not only to maintain accumulators inside this backpack but also to charge it. The gadget also includes refrigerator, of approximately 15 liters, and two speakers so you can connect your phone or mp3-player.
TOP 1	And now is the most intelligent backpack. There is no solar battery inside this bag it makes you carry heavy stuff easily. As you know, one of the main difficulties in the camping trips and military march-throw is the need to carry heavy backpack with equipment and provisions. A physiologist Larry Rome of the University of Pennsylvania was able to significantly reduce the load on the back of a human by changing the design of a backpack fundamentally. The fact is that when person is walking his body moves up and down with the amplitude of 5.7 centimeters, and therefore he has to raise and lower his own weight along with the backpack’s weight with every step he makes. The construction of a new backpack is based on the principle of conservation of load height during walking. Suspended on flexible cables, backpack with every step slides up and down along with the guide metal frame. It is reported that the construction of an additional vertical load decreases by 86% and the total energy savings is equal around 40 watts. But the main goal of this backpack is to reduce the risk of muscles and spine injuries. By the way, nothing prevents to make backpack more perfect by adding an electric generator which uses the kinetic energy to charge batteries of your laptop, pager and other mobile devices. The matter of fact is that at the beginning this hand back was created by this reason. The management of the Naval Research Office in USA wanted to reduce the weight of soldiers’ backpacks by replacing the backup battery with built in generators backpacks.