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GAP FILL: Put the words into the gaps in the text.
Scientists in the USA say they are a ___ closer to developing materials that could make people invisible. Researchers at the University of California have found a way to ___ humans and objects using special materials that ___ light around things. The findings, led by Professor Xiang Zhang, were published in the ___ 'Nature' and 'Science'. Zhang works at the Nanoscale Science and Engineering Centre at the university. His team developed a ___ of artificial "meta-materials" on a microscopic ___ that is measured in billionths of a metre. The researchers said the special "fishnet structure" of the nano-___ objects do not absorb or reflect light, which makes them seem invisible. They ___ the light to "water flowing around a rock". | set redirect compared step scale journals sized cloak | |
The new discovery is a ___ step forward from earlier technology that only allowed the concealing of two-dimensional ___. In the future, scientists could make "invisibility clothing" to ___ people and large objects. However, scientists are still a long ___ from designing and manufacturing invisibility cloaks. The U.S. military is extremely interested in developing this ___ to bring the technology to the ___. The U.S. Army Research Office funded part of Dr. Zhang's research. The technology could also lead to more powerful microscopes that are able to look more ___ at living cells and even tinier objects. This means scientists could look at how viruses are formed and how they ___. | hide battlefield idea objects grow huge closely way |
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