How does the speed of the Great American IV compare to the speed of motor boats the same size, or L’Hermione?

by Capt. Yann Cariou | Dec 5, 2016 | Q&A, Q&A - CaptYannCariou, Q&A-Expert-wk5

Hello Ellen:  The speed of motor boats depend on their engine’s power (it’s like cars: normal cars or racing cars are not the same). Anyway, normal motor boats like a fishing boat or travel boat go about 12 and 15 knots; speed boats can go 30 knots or...

How is the sea temperature warmer than the air temperature? And why is the sea so warm?

by Dr. Kara Lavender Law | Dec 5, 2016 | Q&A, Q&A - DrKaraLavenderLaw, Q&A-Expert-wk5

Hi Marshall and thanks for your great question! The temperature of the sea surface and the air directly above it can be different because of differences in the amount of energy it takes to heat water compared to air. Water has a higher heat capacity than air, which...

What is Rich’s sleep cycle? How does he get enough sleep to stay alert?

by Dr. Brien Barnewolt | Dec 4, 2016 | Q&A, Q&A - DrBrienBarnewolt, Q&A-Expert-wk5

Hi David, In order to feel rested, most people sleep between 7-9 hours at night. Of course, people who work at night will sleep during the day. Everyone has a sense of how much sleep they need to feel good and rested. How much do you need? Can you think about the...

Several times I was in Corsica on a boat trip and I could see once a whale and once dolphins. You’ve been sailing for years – have you seen a decrease in marine fauna?

by Dr. Jan Witting | Dec 3, 2016 | Q&A, Q&A - DrJanWitting, Q&A-Expert-wk5

Dear Axelle, The sighting of a whale or a dolphin is so special every time, and as a sailor I feel lucky whenever I see them!  But it is really hard for me to say if I’m more or less lucky this year over the past.  The thing is, all these big animals are really...

Is there a point at which your muscles, biologically or chemically, will just stop and not do any more no matter how much your mind tells them to?

by Marti Shea | Dec 3, 2016 | Q&A, Q&A - MartiShea, Q&A-Expert-wk5

There is a  point of complete muscular fatigue which occurs at the biological and chemical level of the muscles and this is called muscular failure. Rich is very familiar with this feeling from having worked with me over the past year. When we trained, we would do...