The lateen rig Published on October 24, 2023October 22, 2023 by fivecolorssandt@icloud.com A misunderstood sail We consider a number of mistakes connected with a particular piece of old technology. Read More
People are different Published on October 17, 2023October 16, 2023 by fivecolorssandt@icloud.com Visual photometry Human eyes are not the same as electronic detectors. Read More
The decorative clock Published on October 3, 2023October 2, 2023 by fivecolorssandt@icloud.com Hands fixed We ponder our relationship with time, or at least with timekeepers. Read More
Teaching old things Published on August 29, 2023August 27, 2023 by fivecolorssandt@icloud.com The uses of the obsolete Something that’s no longer used can still be illuminating. Read More
The theoretical piston Published on August 22, 2023August 20, 2023 by fivecolorssandt@icloud.com A useful idea We ask a chicken-and-egg question about a textbook staple. Read More
Your technological age Published on August 15, 2023August 14, 2023 by fivecolorssandt@icloud.com Old habits How much new technology have you absorbed? Read More
History and the ship Published on July 18, 2023July 16, 2023 by fivecolorssandt@icloud.com Combining many things We present another way to teach history. Read More
Sealing wax Published on May 23, 2023May 22, 2023 by fivecolorssandt@icloud.com Authenticity We ponder whether an affectation is actually useful. Read More
Planning for the end Published on May 9, 2023May 8, 2023 by fivecolorssandt@icloud.com Cleaning up after yourself Proper dismantling is harder than building. Read More
Beginning with color Published on April 18, 2023April 16, 2023 by fivecolorssandt@icloud.com A different start We explore a what-if about photography. Read More