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  2. Optical disc - Wikipedia

    en.wikipedia.org/wiki/Optical_disc

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  3. Optical computing - Wikipedia

    en.wikipedia.org/wiki/Optical_computing

    Optical computing or photonic computing uses light waves produced by lasers or incoherent sources for data processing, data storage or data communication for computing.For decades, photons have shown promise to enable a higher bandwidth than the electrons used in conventional computers (see optical fibers).

  4. Lagrange invariant - Wikipedia

    en.wikipedia.org/wiki/Lagrange_invariant

    In optics the Lagrange invariant is a measure of the light propagating through an optical system. It is defined by = ¯ ¯, where y and u are the marginal ray height and angle respectively, and ȳ and ū are the chief ray height and angle.

  5. Ministry of Education and Culture (Indonesia) - Wikipedia

    en.wikipedia.org/wiki/Ministry_of_Education_and...

    The Ministry of Education and Culture (Indonesian: Kementerian Pendidikan dan Kebudayaan, abbreviated as Kemendikbud) was a government ministry which organises early childhood education, elementary education, secondary education and community education affairs and the management of culture within the Indonesian government.

  6. Optical illusion - Wikipedia

    en.wikipedia.org/wiki/Optical_illusion

    A familiar phenomenon and example for a physical visual illusion is when mountains appear to be much nearer in clear weather with low humidity than they are.This is because haze is a cue for depth perception, [7] signalling the distance of far-away objects (Aerial perspective).