The heart of the technology lies in its hydrophilic ratchet structure. These specially designed teeth create a tiny "water bridge" that traps microplastics and holds them in place. The drone ...

Many ratchet manufacturers suggest a specific lubricant ... ratchets because it’s lighter and won’t gum up the smaller teeth of the internal mechanisms but will stick to the surface better ...

The spring is likewise kept to its required position by means of a pawl which catches into ratchet teeth on one of the flanges of the drum, and there is a similar contrivance on the other flange ...

moment for [Leo]. For a ratchet, he used a strip of bandsaw blade oriented so the teeth point upward. A complex bit of spring steel, bent to engage with the blade’s teeth, forms a pawl to keep ...