Researchers develop disposable paperbased touch pads

first_imgA paper-based touch pad on an alarmed cardboard box detects the change in capacitance associated with the touch of a finger to one of its buttons. The keypad requires the appropriate sequence of touches to disarm the system. Image credit: Mazzeo, et al. New multi-touch screen technology developed (w/ Video) ( — Today, electronic touch pads are widely found on laptops, tablets, and other computing devices. Less common uses, but gaining in popularity, are book covers and food labels. These and other low-tech applications become possible as touch pads become extremely inexpensive, with applications ranging from beer bottle labels to disposable medical device labels. Now a team of researchers from the US and France have developed paper-based electronic touch pads that cost just 25 cents per square meter, a price at which touch pads can simply be thrown away when no longer needed. More information: Aaron Mazzeo, et al. “Paper-Based, Capacitive Touch Pads.” DOI: 10.1002/adma.201200137via: Chemistry World Explore further The touch pads are made of metallized paper, which is paper coated in aluminum and transparent polymer. The paper can function as a capacitor, and a laser can be used to cut several individual capacitors in the paper, each corresponding to a key on the touch pad. When a person touches a key, the key’s capacitance is increased. Once the keys are linked to external circuitry and a power source, the system can detect when a key is touched by detecting the increased capacitance.According to lead researcher Aaron Mazzeo of Harvard University, the next steps will be finding a power source and electronics that are cheap, flexible, and disposable. Among the applications, inexpensive touch pads could be used for security purposes. The researchers have already developed a box with an alarm and keypad that requires a code to allow authorized access. Disposable touch pads could also be useful in sterile or contaminated medical environments. © 2012 Phys.Org Citation: Researchers develop disposable paper-based touch pads (2012, May 10) retrieved 18 August 2019 from This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

State govt to export 1000 MW power to Bangladesh per day Sobhandeb

first_imgKolkata: The Bengal government will soon export 1000 MW power to Bangladesh per day for which the state Power department has already taken various initiatives.State Power minister Sobhandeb Chattopadhyay on Saturday said his department has already written to the Centre seeking permission in this regard. He was speaking at the second edition of “Young Thinkers’ Conference” at a city hotel.The British Deputy High Commission, Kolkata, in association with The Dialogue hosted the conference in which experts from various fields discussed the potential of East and Northeast India in education, technology, trade, investment, skills and entrepreneurship. Also Read – Rain batters Kolkata, cripples normal lifeThe theme of the conference was: ‘UK, West Bengal & Eastern India – Shared Prosperity for a Shared Future’. Speaking at the event, Chattopadhyay said the Bengal government had initially started exporting 500 MW power to Bangladesh and now the department is ready to increase the supply up to 1000 MW as of now. It has been waiting for the final clearance from the Centre.Giving a detailed account of what his department has achieved so far in the state, the minister elaborated that in the past six years, the number of consumers has gone up to 1.85 crore while the figure stood at 86 lakh before the change of guard in the government. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedHe further laid emphasis on the development of renewable energy saying that around 78.28 MW solar power is already produced in the state and the figure would soon reach 109 MW. However, there are some land constraints which he pointed out. He said it requires around 4.5 acre land for producing 1 MW solar power.He also welcomed other industries in the state by stating that Bengal is ready with infrastructure, power, workforce and other facilities. He once again reiterated that Bengal is a power-surplus state. Speaking on the topic ‘UK-Bengal Relations and Opportunities going Forward’, Bruce Bucknell, the British Deputy High Commissioner in Kolkata, said: “Our digital world knows no borders. If our countries are to thrive in the age of instant global communications, we need to find new ways to co-operate. We need to develop the networks and contacts to share our ideas, shape the global debate and build a better world.”Bucknell also added that Britain and India have a shared history. The Indian diaspora in Britain is the most successful community and helps power ‘Global Britain’.Debasish Sen, additional Chief Secretary, department of IT in the state, said the perception about Bengal among people is changing very fast. The growth in the export of software has touched 135 percent in the past six years. The largest campus of TCS in Eastern India is coming up in Kolkata, Sen added.last_img read more

Youll Never Guess What This FireSpitting Drone Is Used For

first_img Growing a business sometimes requires thinking outside the box. Register Now » Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global Drones that spit fire. How crazy is that?That’s right. Forget delivery. These drones shoot fire. An electric company in Xiangyang, China, came up with the creative solution of equipping drones with flame throwers in order to burn trash off of the city’s power lines. Apparently, trash getting stuck on power lines is a thing. And, apparently, sending in fire-breathing drones is easier than forcing a human to climb up so high on a high-voltage power line.See the hot, hot action for yourself here:The drone apocalypse begins in 3, 2, 1…center_img February 20, 2017 1 min readlast_img