Scientists within the UK have unveiled the world’s smallest Christmas card.
Produced by the Nationwide Bodily Laboratory (NPL), the tiny Christmas card measures simply 15×20 micrometres – thinner than a human hair.
The cardboard is so small it requires a robust microscope simply to be seen, by no means thoughts studying the festive inscription inside.
It’s created from platinum-coated silicon nitride, a standard materials in electronics, and is over 10x smaller than the earlier record-holding smallest Christmas card, which measured 200×290 micrometres.
The design and message on the cardboard had been carved utilizing a centered ion beam – “a jet of charged particles”, in accordance with NPL.
A micrometre is one millionth of a metre (zero.000001m) and is displayed with the image µm.
Greater than 200 million of the minuscule playing cards may very well be match inside a single postage stamp, NPL stated.
In a cubic metre, much like the dimensions of a submit field, you may match 7 quadrillion (7,000,000,000,000,000) of those playing cards – roughly 900,000 for each particular person on Earth
Dr David Cox, analysis fellow at NPL, who created the cardboard together with his colleague Dr Ken Mingard, stated: “Whereas the cardboard is a enjoyable technique to mark the festive season, it additionally showcases the progress being made in supplies analysis on this scale.
“We’re utilizing the instruments that created the cardboard to precisely measure the thickness of extraordinarily small options in supplies, serving to to unlock new battery and semiconductor applied sciences.
“It is a genuinely thrilling improvement that would assist to make new applied sciences and strategies a actuality.”