manage to cut graphene accurately with a nanorobot

A team of researchers from China and the U.S. has been a method to cut graphene accurately with a nanorobot that is based on an atomic force microscope. The work, entitled 'Court graphene controlled by a nanorobot based on an atomic force microscope', was published in 'Scientia Sinica'.

Graphene is a two-dimensional stable structure has attracted worldwide attention in recent years due to its excellent electronic properties, physical and mechanical properties and its wide range of applications. It has been shown experimentally that the electrical properties of graphene are closely related to its size, geometry and structure, therefore, make the graphene having the desired shape, it is essential for practical application.

How do we measure the universe?

The universe is very large may be obvious, but sometimes it is worth remembering: the universe is very big ... if you think about it and ponder for a moment, the truth is not so obvious. Moreover, even really difficult to imagine how big it is.

Our usual measures are wasted when we put them face to face with the immensity that surrounds us. And one of the issues that most often appear when trying to measure the Universe is the same: How? How do astronomers know a star or galaxy is 8,000 million light years away?

M65 and M66

In close proximity bright spiral galaxies M65 and M66 are highlighted in this attractive cosmic image. The pair is about 35 million light years and measured, each, about 100,000 light-years .

Both display prominent dust lanes that spiral arms sweep. M66 has a particularly striking contrast of red and blue colors, the red light shows the regions of hydrogen gas to form stars and star clusters.

M65 and M66 are two of the three galaxies known as the Leo Triplet , where the gravitational effect of the tide including how matter warps, evidence of how close they are.

M66 has been home to four brilliant supernovae since 1973 .