Scientists develop clothing that can communicate
New York, Aug 12 : Researchers have, for the first time, produced fibres with embedded electronics that are so flexible they can be woven into soft washable fabrics and made into wearable clothing.
Embedding high speed optoelectronic semiconductor devices, including light-emitting diodes (LEDs) and diode photodetectors, into washable fabrics also makes it possible to produce clothing that communicates optically with other devices.
This discovery, described in the journal Nature, could unleash a new 'Moore's Law' for fibres, in other words, a rapid progression in which the capabilities of fibres would grow rapidly and exponentially over time, said researchers from the Massachusetts Institute of Technology (MIT) in Boston.
The key breakthrough for producing these new fibres was to add to the preform light-emitting semiconductor diodes the size of a grain of sand, and a pair of copper wires a fraction of a hair's width.
When heated in a furnace during the fibre-drawing process, the polymer preform partially liquifies, forming a long fibre with the diodes lined up along its centre and connected by the copper wires.
"We are anticipating the emergence of a 'Moore's law' analogue in fibres in the years ahead," said Yoel Fink from the varsity.
"It is already allowing us to expand the fundamental capabilities of fabrics to encompass communications, lighting, physiological monitoring, and more. In the years ahead, fabrics will deliver value-added services and will no longer just be selected for aesthetics and comfort," Fink added.
In this case, the solid components were two types of electrical diodes made using standard microchip technology: LEDs and photosensing diodes.
The resulting fibres were then woven into fabrics, which were laundered 10 times to demonstrate their practicality as possible material for clothing.
One of the advantages of incorporating function into the fibre material itself is that the resulting fibre is inherently waterproof.
To demonstrate this, the team placed some of the photodetecting fibres inside a fish tank.
A lamp outside the aquarium transmitted music through the water to the fibres in the form of rapid optical signals.
The fibres in the tank converted the light pulses -- so rapid that the light appears steady to the naked eye -- to electrical signals, which were then converted into music. The fibres survived in the water for weeks.
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In phone call, PM Modi, US President Trump resolve to promote global peace, security
New Delhi, Jan 27 (PTI): Prime Minister Narendra Modi and US President Donald Trump on Monday vowed to work towards a "trusted" partnership between India and US and advance global peace and security in their first phone conversation since the American leader's inauguration last week.
Modi and Trump exchanged views on global issues, including the situation in West Asia and Ukraine, and deliberated on measures to boost bilateral cooperation in areas such as technology, trade, investment, energy and defence, an Indian readout said.
The two leaders agreed to meet soon, it said.
"Delighted to speak with my dear friend President @realDonaldTrump @POTUS.
Congratulated him on his historic second term," Modi said on 'X'.
"We are committed to a mutually beneficial and trusted partnership. We will work together for the welfare of our people and towards global peace, prosperity, and security," he said.
In a statement, the Prime Minister's Office (PMO) said the two leaders "reaffirmed" their commitment for a "mutually beneficial and trusted partnership".
"They discussed various facets of the wide-ranging bilateral Comprehensive Global Strategic Partnership and measures to advance it, including in the areas of technology, trade, investment, energy and defence," it said.
"The two leaders exchanged views on global issues, including the situation in West Asia and Ukraine, and reiterated their commitment to work together for promoting global peace, prosperity and security," the PMO said.
"The leaders agreed to remain in touch and meet soon at an early mutually convenient date," it added.
It is not immediately known whether the issues of immigration and tariff figured in the talks.
Like in many countries, there have been some concerns in India as well over the Trump administration's approach on immigration and tariff.
President Trump has already talked about slapping "100 per cent tariffs" on the BRICS grouping, a bloc that includes India too.
It is learnt that the phone call was initiated from the Indian side.
External Affairs Ministry Spokesperson Randhir Jaiswal said last week that India is looking for "bolder, bigger and a more ambitious" relationship with the US and indicated its readiness to work with the Trump administration to address issues like illegal immigration and trade.
The phone conversation between Modi and Trump came six days after External Affairs Minister S Jaishankar held separate meetings with US Secretary of State Marco Rubio and National Security Advisor Mike Waltz in Washington.
Jaishankar also attended the Quad foreign ministers' meeting in the American capital. The meeting was the Trump administration's first foreign policy engagement.
At a media briefing in Washington on January 22, Jaishankar said his meetings signalled that the Trump administration "prioritising" the bilateral relationship with India.
The external affairs minister also said that there was agreement between the two sides about the need to be bolder, bigger, and more ambitious about the bilateral relationship.
Asked about the Trump administration's policy on tariff and immigration, Jaiswal said on Friday that India is looking at addressing issues in a constructive manner.
"Our approach has always been to address issues in a constructive manner which is in keeping with the interests of both countries," he had said at his weekly media briefing last week.
"We remain in close communication with the US administration and would like to continue to work towards strengthening our economic partnership further," he said.
India is also keen to continue cooperation under the Initiative on Critical and Emerging Technology (iCET) that was launched during the tenure of the Biden administration.
