Explore further © 2013 Phys.org (Phys.org) —Adafruit, a company founded in 2005 by engineer Limor Fried, has begun offering a free educational program for children on YouTube. It’s called Circuit Playground and the aim is to teach children the basics of how electricity works—it will follow an alphabetical approach—the first episode is called “A is for Ampere.” 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. Children under 3 can’t learn action words from TV — unless an adult helps More information: www.adafruit.com/blog/2013/04/ … or-ampere-episode-1/ Fried (the first female engineer to appear on the cover of Wired magazine) states on her website that her goal for Adafruit is to create the best possible place online for those seeking to learn more about how electronics work and then to make and offer the best electronic products for people of all ages and knowledge levels to help them in their efforts. She appears in the video series as LadyAda (a nod to both computer programming pioneer Ada Lovelace and popular entertainer Lady Gaga), along with other puppet characters that represent different electronic components. As she explains to the puppets how different aspects of electricity work, those watching learn too. In the inaugural video, LadyAda explains to a character called Adabot what an ampere is (and gets some help from a stand-in for André-Marie Ampère himself) and why it’s important in electronics. She also uses real-world examples of whatever she’s talking about, in action—turning on a boom-box for example. The video is short, just shy of four minutes, which means little ones watching won’t have to focus very long. Citation: Learning electronics company Adafruit offers children electronics lessons on YouTube (2013, April 3) retrieved 18 August 2019 from https://phys.org/news/2013-04-electronics-company-adafruit-children-lessons.html Fried, also Entrepreneur magazine’s Entrepreneur of the year for 2012, oversees 45 employees in her business located in New York City. Her aim and that of her company, is to promote learning—specifically, to help people understand how electricity works. With the introduction of Circuit Playground, the goal is to instill a sense of understanding in children about the basic principles of electricity and how it’s used in electronic products—it’s for children who are still too young to learn by doing, which is the essence of her business—selling kits that people can use to build electronic products and in so doing, learn how electricity works. Fried is careful to avoid patronizing those who watch the video and for that reason, it (and presumably the rest in the series) can be viewed by adults as well who wish to learn a little something themselves.Next up for Circuit Playground, is “B is for Battery.”
The 12 component (6 × ligand 1; 6 × Fe2+) assembly of the intermediate hexameric circular helicate [Fe616](PF6)12 and the synthesis of the +31#+31#+31 composite knot 2 and 937 link 3. Credit: Nature Chemistry (2018). DOI: 10.1038/s41557-018-0124-6 Chemistry researchers create self-tying knotted molecules in the lab More information: Liang Zhang et al. Stereoselective synthesis of a composite knot with nine crossings, Nature Chemistry (2018). DOI: 10.1038/s41557-018-0124-6AbstractThe simultaneous synthesis of a molecular nine-crossing composite knot that contains three trefoil tangles of the same handedness and a 937973 link (a type of cyclic catenane topologically constrained to always have at least three twists within the links) is reported. Both compounds contain high degrees of topological writhe (w = 9), a structural feature of supercoiled DNA. The entwined products are generated from the cyclization of a hexameric Fe(II) circular helicate by ring-closing olefin metathesis, with the mixture of topological isomers formed as a result of different ligand connectivity patterns. The metal-coordinated composite knot was isolated by crystallization, the topology unambiguously proven by tandem mass spectrometry, with X-ray crystallography confirming that the 324-atom loop crosses itself nine times with matching handedness (all Δ or all Λ) at every metal centre within each molecule. Controlling the connectivity of the ligand end groups on circular metal helicate scaffolds provides an effective synthetic strategy for the stereoselective synthesis of composite knots and other complex molecular topologies. Tying molecules into knots is a relatively new field—scientists have only been doing it for a decade. It is also unique because thus far there are very few if any practical applications for most such knots. Still, some chemists find the work intriguing, so they continue to create new and ever more complicated knots. In this new effort, the team at UM has built on prior work that led to the creation of molecules shaped like the Star of David and one that was deemed by Guinness as the world’s tightest—by creating one in the shape of a three-trefoil tangle.While the name might sound complicated, the three-trefoil tangle is actually quite simple—creating one with a shoelace, for example, can be done by a child. But using a single 324 atom molecular strand molecule to do it takes some work. The group accomplished this feat by starting with six strands, each with an alkene group at its tips—and groups of three bipyridyls in the middle. They then manipulated the ligands to wrap around six iron ions to hold them in place. They finished by using a catalyst to connect the alkenes with a metathesis reaction to remove the iron. The result was a knot with nine crossings. As part of their work, the researchers also created a granny knot by connecting three figure-eight knots together.The researchers acknowledge that neither of their knots has any practical use at this time, but note that historically, new kinds of knots have been created to suit particular demands. Rock climbers, for example, use knots that are very different from sailors. This suggests that now that chemists know that knots can be made, they might find applications that can benefit from them. They also suggest that learning how to tie molecules in knots can help scientists understand how natural ones occur, such as those in viruses. Journal information: Nature Chemistry © 2018 Phys.org Citation: Researchers create most tangled interlocked molecule ever (2018, September 12) retrieved 18 August 2019 from https://phys.org/news/2018-09-tangled-interlocked-molecule.html A team of researchers at the University of Manchester has created the most tangled interlocked molecule ever. In their paper published in the journal Nature Chemistry, the group describes creating the knot and their hope that such knots will one day become useful. Edward Fenlon with Franklin & Marshall College offers a News and Views piece on the work done by the team in the same journal issue. Explore further 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.
Singing, songwriting, beatboxing, live looping, and producing sounds with an array of gadgets on stage, this one woman army does it all by herself. Blending classical Indian, folk and western contemporary styles, Vasudha Sharma enlivens her audience through her music. Being out on a solo journey is a conscious decision? No, I am not trying to do it individually. I do collaborate and jam with other musicians at times. It’s just that I like to make my basic compositions and then get others on board. I like to control the inception phase. Also Read – ‘Playing Jojo was emotionally exhausting’Your music carries Indian folk and western sensibilities at the same time, how did this come about?I made a great leap that way. When I was four, my summer vacations were spent learning braj music in Mathura. I had no inkling of even Bollywood music back then. After I joined Hindu college for my graduation, I was introduced to Alanis Morissette. That’s when I started imbibing her style of music; you know the way youngsters do. That was my transition from Also Read – Leslie doing new comedy special with Netflixbraj rasiya to western.And which way did you decide to go from that juncture?I was really confused as I knew very little about western music. Then I got this scholarship to Berklee College of Music in Boston,USA. That’s when I decided to delve into western theory of music. Now, I can fuse both the styles together.Coming back to India, you dabbled in Bollywood as the music director of ‘Sharukh Bola Khubsoorat Hai Tu’. (Cuts in) I used to frequently visit Prithvi theatre for plays. One day I saw Makrand Deshpande in a café. I casually went up and told him that I was a singer songwriter and would like to make music for theatre. A year later or so, this offer came along.Bollywood, indie music or both, which way do you plan to steer ahead?Being your own master is another kind of high. I love the space I am in. I am producing my own album Attuned Spirits, for which I had recorded some songs in Boston. Jaagi Jaagi Raina, one of the singles from the album is already out in the market. I am enjoying the way things are panning out for me.
For Simona Bocchi, sculptor, painter, interior-designer, jewelry designer, the desire to create forms out of nature grew in her as constantly as her creativity did.Italian by birth and essence, Bocchi has made India her home over the last few years. She came to India in 2006, invited to organise an exhibition in Delhi by the Italian Embassy. And then there was no looking back. Her experience in India brought her closer to the spiritual search she had been on forever and Udaipur soon became her home. Also Read – ‘Playing Jojo was emotionally exhausting’Bocchi says that she is fascinated by the balance of the yin and the yang and her creations stem from that like the living, breathing, pulsating mass of energy that transforms a piece of granite, marble, bronze, jute or even silver into a stunning piece of art. When I feel the masculine energy in me I like liberating it by making a piece that needs that kind of physical effort from me, on other days when I feel more feminine I prefer to use soft touches, brush tips to create what I want, explains Bocchi.She likes playing with the sense of movement in metal and wax as much as she likes the raw physicality of a piece of marble. It has happened at times that while I have been working on a particular vision, I cut away a piece of rock to expose a surface that isn’t a part of what I have perceived as my art, but it fits in so perfectly – I let it remain that way says Bocchi.
A section of public sector bank employees unions on Wednesday met Minister of State for Finance Jayant Sinha to press for early wage revision. A meeting comes two day after the unions deferred their four-day strike that was to begin on Wednesday as Indian Banks’ Association (IBA) assured that wage issue will be resolved by the first week of February.National Organisation of Bank Workers and National Organisation of Bank Officers, under the leadership of Bhartiya Mazdoor Sangh (BMS), met Sinha and submitted the memorandum on the demands of the bank employees, said a statement by the unions. Also Read – I-T issues 17-point checklist to trace unaccounted DeMO cashIn a representation to Sinha, it said honest negotiations which could break any stalemate. There was a rise of 17.5 per cent (Rs 4,816.00 crore) on total establishment expenses during the last 9th Bi-partite settlement.”We request you to kindly intervene and advise IBA to keep above at least the level of last wage revision. If our demand of 19.5 per cent on pay slip component is considered, it may cost (Rs 6,143 crore). So far IBA has offered only Rs 3,937 crore and gap is Rs 2,206 crore,” it said. Also Read – Lanka launches ambitious tourism programme to woo Indian touristsBanking Service Recruitment Board (BSRB) should be reconstituted and all the recruitments in banks must be channelised through BSRB and state or region wise. Working of the IBPS is neither satisfactory nor transparent, it suggested.Besides, minimum qulification for the post of clerk should be 12th pass instead of graduation. This will bring down the rate of exodus and after 5-6 years of service and banks can get trained and loyal officers, it recommended.
The Nostalgia Colours in order to promote art and to bridge the gap between the need of genuine art lovers and authentic artworks by the master artists of modern India like Suhas Roy, Jogen Choudhury, Sanatan Dinda, K G Subramanian, Ramananda Bandopadhyay and others. The exhibition is called Sangbit and it will continue from March 10-15 at Open Palm Court, India Habitat Centre in the Capital.The aim of this show is reach out to the genuine art lovers and collectors, who otherwise get dependent upon the large galleries and auction houses to satisfy their artistic quench. Also Read – ‘Playing Jojo was emotionally exhausting’Nostalgia Colours is one of the youngest but finest arts promoting organizations and aiming to make these artworks available as affordable as possible to the art lovers and collectors. This is a small little step taken up by the organization to establish that the authentic artworks of the master artists are also can be made available at an affordable price.The exhibition will showcase the authentic artworks of the master artists like K G Subramanian, Suhas Roy, Ramananda Bandopadhyay, Jogen Choudhury, Lalu Prasad Show, Sunil Das, Manoj Mitra, Subrata Gangopadhyay, Jayashree Chakravarty, Chandra Bhattacharyya , Atin Basak, Sanatan Dinda and Nirjhar Bose. Also Read – Leslie doing new comedy special with NetflixNostalgia colours displays, exhibits and stocks the finest collection of contemporary and traditional art, sourced from all over the country. Its collections are ensemble of India’s most sought after artists, credited for their artistic, aesthetic and investment value. The range of art includes serious collector’s items as well as genuinely astounding works of budding artists waiting to be discovered. When : March 10-15Where : Open Palm Court, India Habitat Centre, New Delhi
A special court on Tuesday fixed June 3 for considering CBI’s closure report filed in a coal blocks allocation scam case allegedly involving Prakash Industries Ltd and others. “Certain clarifications have been sought. Put up for consideration on June 3,” Special CBI Judge Bharat Parashar said.CBI had earlier placed before the court all relevant files pertaining to its preliminary enquiry in the case.The court had on March 17 directed CBI to produce all relevant files of the preliminary enquiry in the case in which the agency had filed a closure report. CBI had filed a closure report saying no prosecutable evidence could be found during its probe in the case in which an FIR was lodged against Prakash Industries Ltd and others in connection with alleged irregularities in allocation of Chhattisgarh’s Fatehpur coal block.According to CBI, the Fatehpur coal block was allocated jointly to Prakash Industries Ltd and another company by the 35th Screening Committee.The FIR was lodged against Prakash Industries Ltd, its three officials, some officials of the Ministry of Coal and others alleging that the firm had misrepresented its net worth while applying for the Fatehpur coal block.
Delhi’s New Moti Bagh book authored by Dr Arup Roy Choudhury was released by Venkaiah Naidu, Union Minister of Urban Development, Housing and Urban Poverty Alleviation and Parliamentary Affairs in the national Capital.The book published by Amaryllis, gives an insight into the making of New Moti Bagh which is now a prime residential locality in South Delhi, comprising impressive bungalows and comfortable flats which retain elements of classical architecture based on Lutyens’ Delhi style. Also Read – ‘Playing Jojo was emotionally exhausting’The book makes an interesting reading with
Parents’ fears about their teenagers’ heavy use of cell phones and social media may be exaggerated as the youngsters’ online worlds may be an extension of their offline lives, a new study suggests.“We see young people constantly on their phones and assume ill effects, but much of the research to date tells a more positive story,” said lead researcher Candice Odgers from Duke University. “When we look closely, we see considerable overlap between the underlying motivations and content of online versus offline communications and activities,” Odgers explained.Rather than connecting with strangers, most adolescents use digital media to interact with friends and acquaintances in their face-to-face social networks.