The last three dioramas were completed in the past week.

Documentation of seven of the ten dioramas, Some Useful Values, part of collaborative exhibition, A World of Things. Final adjustments and finishes are to be made to these works.

The final version of some of the boxes came together after a lot of testing and iterations.

Diorama07: 10 to the power of 3, length of R.M.S Titanic (269.06 m), wavelength of radio waves (300m, 1MHz)

More parts arrived in the mail so onwards with more tests and model-building.

This post documents how an Arduino is wired and mounted to a diorama box (100 x 110 x 110 mm3) and how an uOLED screen is wired and mounted to a box of the same dimension while connected to the components at the front of the diorama.

Two (near) working models of diorama03: 10 to the power of -6 (Diameter of human blood corpuscle, 7.5 x 10^-6) and diorama09: 10 to the power of 6 (Moon’s radius: 1.7 x 10⁶, Earth’s radius: 6 x 10⁶) and 10 to the power of 8 (Earth-Moon distance: 4 x 10⁸).

This post relates to the workings of the ‘spectrum of the visible light’ diorama. I want to show the visible light spectrum by staging Newton’s prism experiment. This is probably not an easy thing to do at the best of time, but a few factors are working against me.

Another physical issue to work out is the wiring which will mainly be concealed. The hard cardboard boxes I use have a recess area around 7mm at the back which is enough to hold the wires. The folding on the back allows a power cable to come out.

One of the historical references I am working with is the maquette theatre–miniature models for stage set design. Lighting is very important in these set designs and I imagine this is equally so for my dioramas. I am mainly working with LEDS. I do have some old fashion 2.5V and 12V tungsten bulbs but I fear these will generate too much heat. The uOLED screens may also be used to light a few of the dioramas.