Researchers demonstrated the first fully 3D-printed, droplet-emitting electrospray engine. The low-cost device can be fabricated more quickly than traditional thrusters, potentially from on board a ...

An electrospray engine applies an electric field to a conductive liquid – generating a high-speed jet of tiny droplets that can propel a spacecraft. These miniature engines are ideal for small ...

This online article, “ Guide to heavy-duty actuator springs and valves springs,” shows how springs in process valves and actuators are the “sil ...