ridges

The metal is so thin on these panels that they have to put ridges to stop them from bending.

It looks like a hole in spite of the metal foil having ridges and valleys as seen on the sides where the material is not applied.

Those laser-etched ridges are quite tiny, and if you scratched the pan with a piece of metal, you'd probably wear away the ridges very quickly, creating localized areas of non-hydrophobia.

Its similar to the ridges and lines that car manufacturers are putting on the panels of new cars.

Some higher end fingerprint readers actually use small sound waves to verify the ridges on your fingers are indeed ridges instead of a piece of photo paper with a HD fingerprint.

Or, longer-term, perhaps the screens themselves could develop subtle addressable rough spots and ridges as needed.

It also looks like there's ridges on the pad, which could help with getting a sense of where you are.

We have some shockingly high fidelity prints of both our thumbs showing all the ridges.

It looks for certain unique ridges and swirls and builds up a hash from that.

To an expert auto-maker, the purpose of the panel ridges is obvious, structural rigidity.

Possibly a Fresnel lens, if it can be made so that the ridges doesn't distort the screen image and cause weird patterns.

Sure, but depending on the pourover, you probably have ridges that are slightly less trivial to clean, at least compared to the Aeropress.

I hope they don't enforce that too diligently, or we could end up with a string of Ruby Ridges.