In February 2016, New Zealand citizens had visa-free or visa on arrival access to 171 countries and territories, ranking the New Zealand passport 7th in the world (tied with Greece) according to the Visa Restrictions Index. 1 Visa requirements map.
Hydraulics Engineering Definition. Hydraulics engineering is a field within the civil engineering discipline that addresses the control and management of water resources. As a hydraulics engineer, you'll plan and manage the flow and storage of water.
Avogadro's Reflections. On. Hydrometers. A hydrometer is an instrument whose function is based on Archimedes principle. This principle states that a body (the hydrometer) immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. The hydrometer measures the weight of the liquid displaced by the volume of the hydrometer.