Subscribe now

Physics

Garden hoses help explain why mammals can maintain stiff erections

By Jon Cartwright

23 March 2021

Garden hose

The internal reinforcement of a garden hose differs to that of a mammalian penis

paulsalmon/Getty Images/RooM RF

Mammals are able to maintain stiff erections because their penises have a rare form of internal reinforcement. Now, a discovery inspired by playing with a garden hose means we finally understand the extent of the benefits this offers.

“It was a pandemic lockdown issue,” says Peter Palffy-Muhoray, a physicist at Kent State University in Ohio who normally studies liquid crystals. “While out in the back yard, we noticed the funny undulations of a hose, and wondered about it. Then we stumbled on the…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers.

Sign up

To continue reading, subscribe today with our introductory offers

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop