Step by step tutorial on how to make a LEGO brick vending machine using standard LEGO bricks. This video explains the full build process, including the internal layout, simple input system, and manual ...

PHOTO BY JOHN KELLY, PROVIDED BY NEW HANOVER COUNTY PUBLIC LIBRARY ...

Abstract: In this manuscript, a highly effective metamaterial (MM) superstrate is presented, which is intended to significantly enhance the gain (G) of a partial ground wideband microstrip patch ...