A few weeks ago during a visit to a friend, I decided to take advantage of his computer and have a look on E-bay to see whether there was anything interesting being offered for sale. I noticed a brass ...
The back of an ancient sundial reveals a cheat sheet of locations and latitude coordinates. © Science Museum / Science & Society Picture Library It’s the four or ...
WASHINGTON—“Digital sundial” is not an oxymoron. Bill Kellogg of the North American Sundial Society patented a digital sundial, the workings of which he explained at the USA Science & Engineering ...
Curator Peggy Kidwell solves the mystery of a pocket sundial from the 1600s Peggy Aldrich Kidwell and Sara J. Schechner First, a bit of background on sundials. From ancient times, people have used ...
We see a lot of clocks, and many of the better ones have some 3D printed elements to them. But [Carl Sabanski] shows us his kits for making sundials for either hemisphere using a conventional printer ...
In the garden of Tudor Place, the house museum in Georgetown, an 18th Century sundial is framed by a saying that begins: “With warning hand I mark time’s rapid flight.” Except, it doesn’t. Or not with ...
Sundials are a Luddite way of telling time, given the existence of wristwatches, digital clocks, even iPhones. Sir Mark Lennox-Boyd, however, sees no reason to cease designing them. “Nobody needs them ...
In a row of tiny sheds housing mechanics, sign writers and engineers in Adelaide's northern suburb of Salisbury lies a workshop where precision engineering and art come together. John Ward and ...