Robert Wallace was puzzled when the first electric tractor was delivered to his home in rural Dufur, Oregon, about 75 miles east of Portland. Wallace, an expert on rural energy projects, knows his way ...

Acoustic tractor beam technology has been making waves in physics since it was first proposed by Dr. Philip Marston in 2006 at Washington State University. His work was published in The Journal of the ...

Tractor beams make intuitive sense. Matter and energy interact with each other in countless ways throughout the Universe. Magnetism and gravity are both natural forces that can draw objects together, ...