The Truth About Toilet Swirl – Smarter Every Day & Veritasium — Smarter Every Day

In an effort to settle the debate once and for all, Dr. Derek Muller from Veritasium and Destin Sandlin from Smarter Every Day have executed a well planned out scientific demonstration to finally clear up the truth about toilet swirl.

Source: The Truth About Toilet Swirl – Smarter Every Day & Veritasium — Smarter Every Day