Researchers in Hong Kong and China have successfully calculated the conditions for a tractor beam, in it infancy stage, science fiction is becoming reality.
Knowledge is built upon knowledge, I have always stated fact but it has been appreciated by the discerning mind for over 3000 years. Apparently in 2010 Australian researchers had develop a technique that was however not sufficient, In 2009 a researcher at Washington State University, Philip Marston, strangely BBC gives us his name not the names of the Chinese researchers, (That is why the rest of the world needs its own media outlets, white westerners have a different agenda from rest of humanity, to control and uplift their students never knowledge for its sake), Marston however had theorized about using sound waves, time thus far has proved theory had good results but wrong technique, but one should not be shy to be wrong, that is how knowledge base is built.
It is known that light can provide a "push", for example in solar sails that propel spacecraft on a "wind of light".
Now, in a paper on the Arxiv server, researchers from Hong Kong and China have calculated the conditions required to create a laser-based "pull".
Rather than a science fiction-style weapon, however, the approach would only work over small distances... continue to bbc site