Now feel the load of the backpack less and also make electricity
BEIJING: Carrying a large backpack is painful, but an ingenious invention not only makes it weigh up to 20 percent, but also makes the backpack generate some amount of electricity.
A backpack has been experimentally made at Tsinghua University in China, probably inspired by a double-stranded DNA form. This backpack features a flexible rope-like pulley system for bungee jumping. In this way, the weight of the walking bag is flexible and up and down, and from a distance it seems that the weight of the back of the person walking is suspended in the air. This reduces the feeling of weight.
So if you have 50 kg of luggage in the bag, it feels like 40 kg or maybe less because moving vertically can reduce the load strength by 22% and weight by 28%.
On the other hand, it is equipped with triboelectric nanogenerators that convert this slip into electricity. That is, 14% of the amount of energy used will be converted into electricity. Although it is a small amount, it is enough to run an LED light or electric clock.