Liquid Jet (IMAGE) Optica Caption Shown is a close-up of the liquid jet sensor with the liquid jet (left) and without it (right). The jet of water is less than a millimeter in diameter. Credit Gianluca Persichetti, IREA – CNR Usage Restrictions Must include caption & credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.