The Supreme Court upheld federal restrictions on the kit guns in March, but gun rights groups hope the Trump administration - ...

Plant scientists have used a standard "gene gun" since 1988 to genetically modify crops for better yield, nutrition, pest resistance and other valuable traits.

The Arduino controls a simple 2-axis servo mount with an electric airsoft gun zip-tied to it. The trigger switch is replaced with a relay, also connected to the Arduino.

When they first came into use in the 1830s, friction matches were hazardous and could combust without warning, so vesta cases were something of a necessity. But as their production became more ...