Refraction of water waves in a ripple tank

[@spursman3998]

Very interesting. I'm learning something new every time I watch one of your videos. A refreshing antidote to much of the nonsense on youtube. Thanks so much for posting. Thoroughly enjoyable.

[@Asmakhan-xm7pp]

This man is doing a lot of efforts but still getting less views he deserves millions of views

[@baraskparas]

Great experiments. Thank you. Patience and perseverance extraordinaire.

[@sakshamattray8789]

Philip please reply I am a big fan of all your videos, it would make my day!

[@PhilipRussell]

Thanks for watching. There are plenty more videos to come.

[@hiloejiragod8137]

Thank you a lot! Your videos are always a big help.

[@ureedhafatima3725]

Great explanation sir. Keep it up

[@hallwaykhadija]

What is the black fan-like object, that you have used to follow the wave, called?

[@PhilipRussell]

This is a fan stroboscope

[@hector0zaeta9]

gracias maestro

[@hector0zaeta9]

quiere decir que la luz tiene densidad

[@PhilipRussell]

Cuando la luz entra en un sólido o en un líquido en el límite, la velocidad de la luz disminuye y, por lo tanto, se dobla. Esto no tiene nada que ver con la masa o la densidad. When light enters a solid or a liquid at the boundary the speed of the light is slowed and therefore bent. This has nothing to do with mass or density

[@baraskparas]

Great experiments. Thank you. Patience and perseverance extraordinaire.