a ranna – a dhasskrifa, lesranna ha treuskorra an ober
a gemyska – a aswiwa an ober
Yn-dann an ragselyow a syw:
askrifans – Res yw dhywgh ri askrifans gwiw, provia kevren dhe'n lecyans, ha meneges mar peu chanjyow gwrys. Hwi a yll gul hemma yn fordh resonus a vynnowgh, mes ny yllir y wul yn fordh a broffo synser an lecyans dh'agas skoodhya po agas devnydh.
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Uploaded a work by [https://www.youtube.com/channel/UCPKnBhy8PqPLapWIZ7orlKQ Institute of Physics] from [https://www.youtube.com/watch?v=PxHJM78DUTA Butterflies and metamaterials with Professor Roy Sambles] (frame grab, 0:17) with UploadWizard