Jim Hancock interviews Cree Partridge, owner of the Berkeley Marine Center and installer of the first hydrogen-fuel-cell-powered auxiliary on a West Coast sailboat. Cree discusses his early boating background, boatbuilding designs and materials, and makes an astonishing claim about ferro-cement boats. He also reveals his favorite boat-building material. Listen to find out. Support the Sailing Science Center's mission at https://sailingscience.org/donate Check out the BMC at https://berkeleymarine.org Music from Bensound.com intro: Going Higher Outro: All that

Sailing Science Center Founder and President Jim Hancock sits down with Charlie Walther, a marine engineer who spent 23 years working for Crowley Maritime, doing everything from pumping bilges and working his way up to the director of engineering and machinery for five years. He left Crowley 33 years ago to start his own business, Walther Engineering, and has been involved in the "Green-ification" of the San Francisco Ferry fleet. The subject of our conversation was environmental and social consciousness in the marine industry, including the role model presented by projects like the Matthew Turner: https://callofthesea.org/about-us/our-fleet/matthew-turner/ Music from Bensound.com intro: Going Higher Outro: All that Support the Sailing Science Center's mission at sailingscience.org/donate

The Sailing Science Center goes cruising on the Matthew Turner in search of science! Examples are found that fit into the SSC's seven galleries.

This video demonstrates the Sailing Science Center's Water Column Density Drop exhibit by its creator, Lars Anderson.

This video examines wave-making resistance, the primary cause of resistance for boats moving through the water at medium speeds.

This video demonstrates the Coriolis Effect by tracing the path of a ball rolling across a lazy Susan.

Johannes (‘Joop’) W. Slooff, born in 1941 in Haarlem in The Netherlands, is a (retired) fluid dynamicist by profession. He worked at the National Aerospace Laboratory (NLR) and was a part-time professor at Delft University of Technology in The Netherlands. He is also a cruising yachtsman (not yet retired). In 1981 he became involved with the development of the 12-Metre yacht 'Australia II' for the 1983 America’s Cup campaign. He proposed the concept of the upside-down, winged keel and was responsible for the computational fluid dynamic modeling, performed at NLR, that substantiated the performance potential of the concept. In the 1980s he was also involved in keel research performed at Delft University of Technology by Gerritsma and Keuning. After his (early) retirement in 2001 he wrote a course on the aero- and hydrodynamics of sailing for the Heiner Sail Academy in The Netherlands. He also became involved, as a technical-scientific advisor, in the ABN-AMRO campaign for the 2005-2006 Volvo Ocean Race. From 2008 through 2012 he has lectured on the aero- and hydrodynamics of sailing at an annual special course on sailing yacht technology at the faculty of Maritime Technology of Delft University. He is author of the book “The Aero- and Hydromechanics of Keel Yachts” and "The Science Behind Sailing": https://www.amazon.com/gp/product/1798918420/ Music from Bensound.com intro: Going Higher Outro: All that Support the Sailing Science Center's mission at sailingscience.org/donate

In this inaugural episode of the Sailing Science Hour, Jim Hancock interviews Latitude 38 editor-in-chief John Arndt (john@latitude38.com). Check out latitude38.com or go to a magazine stand anywhere boats or boat stuff is found! Show highlights: 4:00 - How John got interested in engineering. 6:33 - From Maine to Venezuela & back 8:38 - the importance of connecting to nature and the planet with old-school sextant sailing 11:00 - how sailing is different from other sports – how "freedom" cuts both ways. 12:30 - Changes in journalism / changes at Latitude 13:00 - the joys of sailing naked and the changing times 23:00 - how people are rediscovering the joy of sailing following the peak of popularity in 1979 26:00 - where people are learning to sail today 28:51 - is sailing a "white guy's sport"? 32:00 - does technology make sailing more or less accessible? John in his own words: "I was brought up in a sailing family. My grandfather sailed and my parents sailed doing their honeymoon in 1953 aboard a sailboat around Cape Cod. However, our biggest sailboat was a Rhodes 19 which we still have in Maine today. So, while we are a lifelong sailing family it was purely small boat, weekend, recreational sailing that we did for about 10 weeks every short Maine summer. We had a styrofoam Snark, a 10' Turnabout, my brother Peter and I bought a 420 in high school and it was only then that he and I started to expand our horizons by crewing on local, Maine offshore races and eventually he and I and our friend Max Fletcher took a year off from college to sail from Maine to Venezuela and back. I did some college racing but again in a short Vermont season. My parents always had fun sailing but weren't really racers or cruisers - just weekend small boat sailors but that was enough to plant a seed so that myself and my three brothers became lifelong sailors though my brother Peter and I made it both a career and pastime." Music from Bensound.com intro: Going Higher Outro: All that Support the Sailing Science Center's mission at sailingscience.org/donate