These old steam locomotives look great on their ancient engravings. Source: Bibliodyssey

These old steam locomotives look great on their ancient engravings. Source: Bibliodyssey
Maintenance Percussive from Duncan Robson on Vimeo. No need for an engineer’s degree!
Did you ever see a ship on a ship? And a ship on a ship on a ship?
Metal parts can be colored in the strangest ways. When we speak about aluminium, Apple is able to produce extraordinary hues on aluminium covers. As a matter of fact, they are using an anodization process which oxydizes the surface of the metal to create small pores to receive color pigmentation which will become nearly impossible…
YouTube link Bravo à Philippe L.
Magnetic ferrous particules from the toner cartridge of a laser printer danse on the invisible lines of the magnetic field of a magnet. Compressed 01 from Kim Pimmel on Vimeo.
Remember! This was long before the text reading on the screen of your mobile phone. We were using books made out of… paper. I kid you not! Here is how they made books in this long-gone era: YouTube link
Here is a Dimension SST 1200es 3D printer on the job of building 2 interlocked cube frames out of production-grade thermoplastic. YouTube link
For those of you who asked for more details about the reliability of lead-free soldering (see the end of my previous titled “Manufacturing of electronic boards“, I have found an interesting and useful analysis from Numonyx (now Micron Semiconductors). Lead-free and leaded package soldering compatibility – Backward and forward compatibility This white paper explores the…