with the remaining balance arriving within 48 hours. So far, though, the regulation of artisanal and small scale mining in Ghana has been mostly unsuccessful. More than 85 percent of small-scale ...

Unlike conventional electric hydrofoil boards that depend on rider skill for balance, [rctestflight] aims to create a self-stabilizing system. He began by designing a small-scale model ...

You record the mass of light objects in grams. One way to measure the mass of objects is to use balance scales. A balance scale works by placing the object you want to weigh on one side and adding ...