File talk:Fluid Velocity Triangle.gif

under copyright law n North America and Internationally ... any public domain knowledge such as the drawing in this post is NOT COPYRIGHTABLE as it is owned by all not anyone person and CON NOT BE listed under fair use or ANY copyright tags it is FREE USE

Judge Louis Brandeis said, “The general rule of law is, that the noblest of human productions—knowledge, truths ascertained, conceptions, and ideas—become, after voluntary communication to others, free as the air to common use.” Some very powerful interests would beg to disagree.

reference ... https://www.eff.org/deeplinks/2020/01/public-domain-rule-copyright-exception