Rare Crevice Corrosion Example

There are some other interesting videos on his YouTube channel: Ben sutcliffe marine surveys Sutcliffe-Davies

Pandemic Preparations

Photo by Johannes Plenio on Unsplash

source: https://unsplash.com/photos/DKix6Un55mw

Made a run to start building-up a 30-day emergency food supply today (most of the food I bought won't expire until 2022, or late 2021) - these are in addition to the emergency supplies I stored aboard last year (as part of my earthquake/tsunami preparedness).

In a few days, I'll do a shock-treatment of the boat's water supply system - and add 10-15 gallons of diesel to the fuel tank - and then replenish the 4 x 5 gallon spare jugs I carry on deck (for a total of ~50 gallons, or 600-800 miles motoring-only range)

Will also pick-up two additional propane tanks - and order a backup camping stove.

Later this week, I'll finish rewiring the mast - and will work on re-installing the sails.

Research: Simple, solar-powered water desalination

https://techxplore.com/news/2020-02-simple-solar-powered-desalination.html

 "Unlike some desalination systems, there is no accumulation of salt or concentrated brines to be disposed of. In a free-floating configuration, any salt that accumulates during the day would simply be carried back out at night through the wicking material and back into the seawater, according to the researchers."

 "It is described in a paper appearing today in the journal Energy and Environmental Science, authored by MIT doctoral students Lenan Zhang and Lin Zhao, postdoc Zhenyuan Xu, professor of mechanical engineering and department head Evelyn Wang, and eight others at MIT and at Shanghai Jiao Tong University in China"

"the team's demonstration device can achieve an overall efficiency of 385 percent in converting the energy of sunlight into the energy of water evaporation."

The Deep Sea - Scrolling Interactive Discovery

https://neal.fun/deep-sea/

Stairway to Gilligan's Island