Work belt is a tool belt worn by professionals and DIY enthusiasts to hold and organize tools while working. It typically consists of a sturdy belt made of leather, nylon, or another durable material, with various pouches and pockets attached for holding tools and accessories.
The design and number of pouches can vary, but common features include hammer loops, tape measure holders, screwdriver slots, and pockets for nails, screws, and other small items. Some work belts may also have loops or clips for attaching larger tools or equipment, such as power drills or saws.
Work belts are commonly used by construction workers, carpenters, electricians, plumbers, and other tradespeople who need quick access to their tools while working on a job site. They can also be useful for DIY projects around the home or workshop.
When choosing a work belt, it's important to consider the type and number of tools you'll need to carry, as well as the level of comfort and support you require. A good work belt should be sturdy and durable, with adjustable sizing to ensure a comfortable fit. Some models also offer additional features such as padding or a back support belt for added comfort during long hours of work.
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Charging through human motion has been used on some devices that consume less energy, including watches and some sensors. However, similar technologies have not been able to use such energy-consuming devices as mobile phones.
According to an article published by the University of Wisconsin research team in the journal Nature-Communications, the power-generating device they invented can be installed in shoes. During the walk, the kinetic energy of numerous tiny conductive droplets in the device is converted into current.
Researchers say that the amount of power generated is enough to charge a standard cell phone or handheld computer.
How to connect the power generation device and the mobile phone is obviously a challenge. One way is to plug a USB cable into the shoe. However, this method may not be practical.
Scientists at the University of Wisconsin proposed a more sophisticated method of connecting the power-consuming device and the most power-consuming part of the phone to each other in a shoe, and then connecting the device to the handheld part of the phone through a short-range wireless transmission system such as Bluetooth. 
American scientists invent "power generation shoes" to charge mobile phones
According to foreign reports, a research team at the University of Wisconsin in the United States has invented a new method of using human motion to generate electricity, making it possible to charge mobile phones by walking.