Visually, native 1080p produces a sharper and clearer picture compared to upscaled 1080p. The northern clouds are smaller, sharper and brighter. This resulted in a smoother reverse and "slightly sharper" obverse. This gives the Wurlitzer a sharper and punchier tone. Some musical instruments produce overtones that are slightly sharper or flatter than true harmonics. Obsidian is capable of producing an edge sharper than high quality steel razor blades. Progressive-scan generally produces a slightly sharper image. The carbon brake discs are thicker for improving braking power while approaching sharper corners. Klitschko consistently proved himself faster, sharper and much fitter than Arreola. This contrast between the light and dark creates a sharper image. This gives a harder, sharper bounce. They are generally smaller with sharper facial features as well. The sharper the edges, the lower the overlap. Firing in the .300 Whisper chamber results in a slightly sharper shoulder. This natural glass chips sharper than other stones but is more brittle.