Why rip currents form off the coast of NC Share this page Send by email Find out how holes in the sand bar lead to rip currents off the North Carolin coast, according to research from North Carolina Sea Grant. tags: rip currentsrip tidesNC Sea Grant ↑ Back to top about author Follow Author On:Array node bottom quicktabs recent articles video How improv dance helps people with memory loss Just dance! People with memory loss fall more often and tend to be more socially isolated. But researchers at Wake... video Cornhole with an astronaut Frank Graff talks moon walks and what's it's like in space with Apollo 16 astronaut Charlie Duke...and plays cornhole... video Cornhole with a scientist: Urban Bees Producer Frank Graff chats urban bees with entomologist Elsa Youngsteadt, Ph.D, over a game of cornhole. video Cornhole with a scientist: Robot Science Frank Graff talks robot science over a game of cornhole with Duke University's Daniel Sorin, Ph.D.