Recent content by pmehnati

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    How Is a Photovoltaic Cell Produced?

    you want to fibricate solar cell?
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    MATLAB Understanding the @ Rule in MATLAB Code with Quad Command

    HI every one what's the @ rule in the MATLAB code? especielly when we use quad command.
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    Graduate How to Safely Clean and Remove Residues from a Polarizing Beamsplitter Cube

    how we can clean and remove the fat effects such as fingerprint of polarizing beamsplitter cube.we must regarded that the surface of polarizing beamsplitter cube have some coating materials that they should be safe,
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    Undergrad How Can Optical Devices Like QWP and HWP Determine the Polarization of Light?

    Hi, how we can determine the right or left circularly polarized light by using the optical devices such QWP or HWP or others.
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    Undergrad Indirect/direct semiconductors

    Hi why is band gap indirect in semiconductors like Si ?and direct in semiconductors like GaAs?
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    Graduate Find the critical temperature of a bismuth based ceramic

    Hi I think you shouid study some information about linear response theory & thermodynamics.
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    How Far Does the Lighter Fragment Slide After an Explosion?

    you can use vi power 2 -vi 0power 2=2ax and calculate accelerate then use again this formulla to find the distance of lighter mass.
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    High School See the Diffraction of Moon Light at Night

    Thanks for your answet .It was what I want (halo)
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    High School Have you ever wondered about the physics behind the diffraction of moonlight?

    Hi At night when you watch moon in cloudy weather you will see the diffraction of moon light around it in circle form and so the colorful circles . Please explaine me the physics of it. Thancks.
    • pmehnati
    • Thread
    • Diffraction Light Moon
    • Replies: 3
    • Forum: Optics
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    High School See the Diffraction of Moon Light at Night

    Hi At night when you watch moon in cloudy weather you will see the diffraction of moon light around it in circle form and so the colorful circles . Please explaine me the physics of it. Thancks.
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    High School Problems and solutions about thermodynamics

    Hi I want some problems and solutions about thermodynamic.Can you help me?
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    Atomic Time: Get the Facts and Learn How it Works

    my purpose is the application of atomic time in Rilativity.
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    Atomic Time: Get the Facts and Learn How it Works

    Hi Iwant some inormation about atomic time.Can you help me?
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    A Parent-Child Lookalike: Mother/Father and Daughter/Son

    I think daughter is look like her aunt(father's sister) & boy is look like his uncle(mather's brother).
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    High School Harm of discharge of thunder in village is worse than cities?

    hi. my question:why the harm of discharge of thunder in village is worse than cities?