What you did there. I see it.

*Trying to understand joke* Haha I get it :D

Explanation?

Because the radiation of an electromagnetic wave is insufficient to propel a fiberglass surfboard with a length approximately 10^2.3 times its λ ...

This joke is higher level humor and apparently I am not on the upper level

Love this part: "I told my dad this and he threw the tv remote at me"

I told my mom this and she glared at me for like 5 minutes

I thought you meant because microwaves are to low frequency on the electromagnetic scale.