The world's smallest Christmas card is only half a strand of hair

In the Christmas atmosphere approaching, people rushed to shop for pleasant items to give to loved ones, along with a series of meaningful gift ideas made by manufacturers. Thorough exploitation and introduction.

When scientists also participate in this " bustle" , the products made are not only meaningful but also very unique, and micro-Christmas cards are one of them.

This is a unique idea developed and implemented by scientists from the National Physical Research Department (NPL) of the UK National Metrology Agency. Their product has indeed created an interesting little thing about size but super great about creative meaning.

Picture on the world's smallest Christmas card.(Source: NPL).

With a size of only 15x20 micro meters (1 micro meter equivalent to 1 / 1,000,000m), this is the type built up to this point, 100 times smaller than the previous record 200x209 micro meter. (The width of a human hair is about 100 micrometers in size).

Scientists say it is possible to put more than 200 million special Christmas cards in the frame of a regular postage stamp.

"Small but martial", these are also lacking in meaningful content and images such as their relatives in normal size, with full wishes and the words "Seasons greetings" printed below the picture of a man Funny snow carving skillfully.

These 200 million postcards can fit within a regular postage stamp.(Source: NPL).

The creation of this type of card is not merely to contribute to the festival, but behind it is also an extremely useful scientific research significance. To get these images and letters, scientists have had to manipulate super-difficult illustration techniques using focused ion beams on silicon and nitrogen compounds coated with platinum.

The authors of the work said that their successful use of this technique could be considered a breakthrough creative step, paving the way for many other applications in the areas of micro-materials, battery manufacturing technology and semiconductor techniques.