The women’s national team manager Phil Neville says Rooney is the “greatest goal scorer that England’s has ever produced”Wayne Rooney has been called up by the England national team for the friendly match against the United States.The footballer is coming out of international retirement to get his 120th appearance with the English shirt.But some have criticized his call, like former goalkeeper Peter Shilton.And England women’s national team manager Phil Neville doesn’t understand why.Crouch: Liverpool could beat Man United to Jadon Sancho Andrew Smyth – September 14, 2019 Peter Crouch wouldn’t be surprised to see Jadon Sancho end up at Liverpool one day instead of his long-term pursuers Manchester United.“He didn’t want to interfere with this year’s World Cup campaign when he was left out and he retired from the team,” he told Sky Sports.“And it’s a celebration of one of our greatest. Now you talk about greats, talk about Bobby Moore, Bobby Charlton, Paul Gascoigne, David Beckham, Rooney scored more goals than any other male footballer in England.”“I think that is something worth celebrating, I think that is something worth respecting and I think those that are actually questioning it, I think they need questioning, not those who have made the decision to have this game,” he added.“Wayne Rooney, the greatest goal scorer in England history, the greatest goal scorer in Manchester United’s history and people are upset about having him play in a friendly game.”
Two different epitaxial graphene materials combined to a monolithic transistor. Image from Nature Communications 3, Article number: 957 doi:10.1038/ncomms1955 (Phys.org) — Researchers in Germany appear to have found a way to create a monolithic (integrated) graphene transistor, using a lithographic process applied to silicon carbide, a breakthrough that could lead to computers based on graphene chips, rather than those that use silicon. This is significant because researchers are beginning to see the light at the end of the tunnel regarding the degree to which silicon can be used to make smaller and smaller chips. Using graphene wouldn’t necessarily allow for smaller chips, but because it conducts electricity faster, it would allow for faster chips without having to downsize. The German researchers working with another group from Sweden, describe the new process in their paper published in the journal Nature Communications. Journal information: Nature Communications Citation: Researchers devise a way to a create graphene transistor (2012, July 18) retrieved 18 August 2019 from https://phys.org/news/2012-07-graphene-transistor.html Explore further IBM introduces new graphene transistor © 2012 Phys.org More information: Tailoring the graphene/silicon carbide interface for monolithic wafer-scale electronics, Nature Communications 3, Article number: 957 doi:10.1038/ncomms1955AbstractGraphene is an outstanding electronic material, predicted to have a role in post-silicon electronics. However, owing to the absence of an electronic bandgap, graphene switching devices with high on/off ratio are still lacking. Here in the search for a comprehensive concept for wafer-scale graphene electronics, we present a monolithic transistor that uses the entire material system epitaxial graphene on silicon carbide (0001). This system consists of the graphene layer with its vanishing energy gap, the underlying semiconductor and their common interface. The graphene/semiconductor interfaces are tailor-made for ohmic as well as for Schottky contacts side-by-side on the same chip. We demonstrate normally on and normally off operation of a single transistor with on/off ratios exceeding 104 and no damping at megahertz frequencies. In its simplest realization, the fabrication process requires only one lithography step to build transistors, diodes, resistors and eventually integrated circuits without the need of metallic interconnects. By now everyone has heard that graphene is expected to take the world by storm over the next few years as ways are found to make use of its amazing properties (it’s just one carbon atom thick and is the fastest conductor ever found). The problem of course is in trying to work with such a thin material; it’s hard to connect to other metals such as electrodes and breaks easily. Another problem is that it’s not a natural semiconductor, which is a material that is conductive in one state and to not conductive in another. Semiconductors are what allow computers to store “1s” and “0s”. Thus, to use graphene in a computer, a way needs to be found to allow it to behave as a semiconductor so that transistors can be fashioned. That way appears to have now been found.The new research is based on earlier research that found that if the crystal, silicon carbide is baked just right, the silicon atoms on its surface are pushed out of it leaving just a single layer of carbon, i.e. graphene. The result is a material that suggests a transistor is possible due to the graphene layer remaining affixed to more layers of silicon carbide (which is a semiconductor) below it. To make a transistor, the team used a high energy beam of charged atoms to etch channels into the material to create the parts needed for a transistor to run; namely, gates, drains and sources. They also found that using oxygen gas during the etching of the middle channel converted it from a contact into a gate. The end result is a fully functioning transistor.Because the researchers scaled up the transistor size to allow for easier research, it’s not yet known how much faster the new transistor actually is, or how fast those might be once they are scaled down. What is now known though, is that it can be done, and that is the breakthrough computer engineers have been waiting for. 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.
Acclaimed artist Binoy Varghese, Founder of Kekkeyellam Foundation presents Green- Line for the Kerala Flood Relief Show by bringing together more than 108 artists.Varghese has worked very hard to bring together a plethora of artworks created in the studios of many artists. Showcasing the collection of paintings by senior, eminent and contemporary artists, the exhibition puts forth the various facets of life, nature, culture and religious thoughts. Also Read – Add new books to your shelfAn amalgamation of artworks by over 100 artists of Indian origin from across the world, the exhibition features names like George Martin, Seema Kohli, Gopinath Subbanna, Kalam Patua, Niladri Paul, Sudip Roy, Vishal Joshi amongst others. With a vision of bringing together art beyond boundaries, the exhibition will provide a common ground to raise the funds for Kerala flood relief. Varghese does the impossible by bringing together more than 100 works some in the small and medium format-there is realism, figurative and abstract works. Amongst abstractionists, one of the finest is the work of Vishal Joshi a deeply absorbing work that speaks of space and contour and spirituality. Also Read – Over 2 hours screen time daily will make your kids impulsiveThe four day show touches upon the thought of art as a medium to raise funds for a cause close to everyone’s heart. Through the show, it is aimed that the much-needed shelter is provided to the victims who have lost their near and dear and earning family members due to the unprecedented torrential rain over a month in August 2018 in Kerala. Each artist has donated one piece of artwork to support this cause. “The Artists community along with me want to do our best to support the Govt. of Kerala to help the people in need to rebuild their houses and start a new life. The entire sales procedure will go to Chief Minister’s distress fund” says artist Binoy Varghese. Sudip Roy the brilliant watercolourist says: The Kerala floods is a lesson for all of us we must not take life for granted, whatever we can do for others we must do. This is a contribution of heart and soul and that is what is most important.” Artist Kalam Patua believes that “This is a great step by our artist’s community to help a bit for the Kerala flood victims and this is our responsibility as a citizen of the Country to help them”. The show opens on October 25 and runs till October 28, at Creativity Art Gallery, Hauz Khas.