An Extraordinary 500-Year-Old Swedish Royal Shipwreck In the frigid Baltic Sea Is Rewriting the History

Smithsonian magazine ^ | Nov 2021 | By Jo Marchant

[dennisw]

I think it is a great article myself! I have the dead trees version. With slightly more and better photos of the retrieved sunken treasures.

[dennisw]

Thanks. I had no idea. So interesting!

[texas booster]

Longitude by Dava Sobel

I picked up the book at a Half Price Bookstore years ago. She tells the story of John Harrison, a British clock maker who solved the problem with his son.

I really do like the book, but she is one of the NPR crowd and it shines through the pages. She got an enviable book deal and a TV show out of it.

It is a good book - just not a great one.

But the subject matter is still fascinating.

John Harrison's H1 clock from 1735 still works today.

Redfern Animations of Harrison's H1, H2, H3 and H4 Clocks

[dennisw]

More on your Dava Sobel, who I never heard of—— Until Today

https://www.encyclopedia.com/arts/educational-magazines/sobel-dava-1947#:~:text=SOBEL%2C%20Dava%201947-%20PERSONAL%3A%20Born%20June%2015%2C%201947%2C,of%20New%20York%20%E2%80%94Binghamton%2C%20Bx.H.S.%20of%20Science%2C%201969.