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 Dradco sets the standard for all other high-pressure hose nozzles in this category. It is constructed with no triggers but just an On/Off twist to make it less breakable. The handle is also ...