Due to the exceptional brightness of the Moon, residents of the country will be able to observe it without the need for telescopes or binoculars
uae5 hours ago
They accomplished this through a new, breakthrough technique that uses a tiny, silicon tip with a sharp apex -- 100,000 times smaller than a sharpened pencil point—to create patterns and structures as small as 15 nanometre at greatly reduced cost and complexity.
A nanometre is a billionth of a metre. This patterning technique opens new prospects for developing nanosized objects in fields such as electronics, future chip technology, medicine, life sciences, and optoelectronics.
To demonstrate the technique’s unique capability, the team created several 3D and 2D patterns, using different materials for each one.
A 25-nanometre-high 3D replica of the Matterhorn, a famous Alpine mountain that soars 4,478 metres (14,692 feet) high, was created in molecular glass, representing a scale of 1:5 billion.
Complete 3D map of the world measuring only 22 by 11 micrometre was “written” on a polymer.
At this size, 1,000 world maps could fit on a grain of salt. A kilometre of altitude corresponds to roughly eight nanometre.
It is composed of 500,000 pixels, each measuring 20 square nanometre, and was created in only 2 minutes and 23 seconds.
A 2D nano-sized IBM logo was etched 400-nm-deep into silicon, demonstrating the viability of the technique for typical nanofabrication applications.
The core component of the new technique is a tiny, very sharp silicon tip measuring 500 nanometre in length and only a few nanometres at its apex.
”Advances in nanotechnology are intimately linked to the existence of high-quality methods and tools for producing nanoscale patterns and objects on surfaces,” explains physicist Armin Knoll of IBM Research, Zurich.
”With its broad functionality and unique 3D patterning capability, this nanotip-based patterning methodology is a powerful tool for generating very small structures,” said Knoll, according to an IBM release.
The tip, similar to the kind used in atomic force microscopes, is attached to a bendable cantilever that controllably scans the surface of the substrate material with the accuracy of one nanometre.
By applying heat and force, the nano-sized tip can remove substrate material based on predefined patterns, thus operating like a “nanomilling” machine with ultra-high precision.
These findings were published in Science and Advanced Materials.
Due to the exceptional brightness of the Moon, residents of the country will be able to observe it without the need for telescopes or binoculars
uae5 hours ago
Blue Chip suspends payouts; Bollywood star Sonu Sood denies endorsement
uae5 hours ago
Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) is a condition that leads to loss of physical strength
uae5 hours ago
Victory at the Etihad against West Ham on Sunday will make them champions for a fourth consecutive season
sports9 hours ago
Pakistan eased to their victory target of 179 with 18 balls remaining in the series decider
cricket11 hours ago
The result confirmed a playoff spot for Rajasthan, who became the second team to enter the final four alongside table-toppers Kolkata
cricket12 hours ago
Dubai Municipality has transformed the Hatta landfill into an advanced facility from where segregated waste can be transferred to treatment sites in the city
uae13 hours ago
The search engine's AI answers offer a paragraph or two of explanation with links to the online sources that supplied the information
americas13 hours ago