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HankScorpio-vs-World t1_j31cwia wrote

Reply to comment by HankScorpio-vs-World in What are the physical limits of stamping optical media like blu-ray discs? by ChronoX5

Link to Wikipedia picture of the dot spacings on blue Ray discs https://en.wikipedia.org/wiki/Blu-ray#/media/File:Comparison_CD_DVD_HDDVD_BD.svg

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ChronoX5 OP t1_j32ea85 wrote

That's a helpful picture. Thank you! It blows my mind that they can manufacture physical bumps smaller than the wavelength of light.

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rudy21SIDER t1_j34ap9g wrote

Light wavelength can be as big as the empire state ( radio) or as small as a Planck 's length (lethal radiation) so there is a big "not impressive" margin.

Still very impressive precision in nanometers but we gave way smaller things (chip manufacturering).

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Insertsociallife t1_j35wv04 wrote

Couldn't the wavelength of light considered to have a limit at infinity? If frequency has a limit at 0, it could still multiply to c, right?

Edit - should clarify, calc definition of limit, infinitely close to but is never the value it's limited by

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