Wieland Thermosiphon demo rig with bench power supply on a white plinth

Photo: Mariusz Młynarczyk / CloudAir.tech

A plinth labelled "Thermosiphon" at the Wieland stand carries a test rig with red cables, a circuit board and a bench power supply showing live readings. Other white plinths display tube samples, and the LED wall at the back plays the line "is the only constant for change" over a digital hand graphic.