On 26th February we took the Tide showcase system to Prof. Dr. Hessel Wijkstra, Dr. Massimo Mischi and colleagues from the Signal Processing Systems group of the Technical University Eindhoven. We successfully showed our system was capable of producing microbubbles that are stable for more than 30 minutes of continuous ultrasound excitation. This is illustrated by the clear visualisation of microbubble vortices in a water bath shown in the accompanying photograph. These exciting results exceeded all expectations and haveopened up new avenues for future work.