Category Archives: Chemistry

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lecture 29-part 4- Analytical Chemistry and Chromatography for Graduate Students - Prof Peter Carr By: Imad Haidar Ahmad … Continue reading →

lecture 29-part 5- Analytical Chemistry and Chromatography for Graduate Students - Prof Peter Carr By: Imad Haidar Ahmad … Continue reading →

Sexy Chemistry of Siddharth and Shraddha in Villain! Watch the Video to know more:- SUBSCRIBE for Latest Bollywood Updates- https://www.youtube.com/bollywoodbakda. By: bollywood bakda … Continue reading →

thermo 6-8. By: Coms Chemistry … Continue reading →

Put Advance Matching to Work for You Online Dating, serious relationships and even marriage...here the online dating process begins with the Chemistry Profile, which helps us to get to know you on a deeper personal level. Once we have your results, we use the latest research of world-renowned biological anthropologist, Dr. Helen Fisher, to predict which single men or women you'll have relationship and dating chemistry with. Take online personals to the next level with Chemistry.com. Get Dating with 1-2-3 Meet At Chemistry.com, we move beyond online dating and get you out dating in the real world, because that's what really matters to single men and women who are seeking serious relationships or even marriage. Our guided communication and dating process picks up where online dating leaves off, designed to help you quickly get to know your matches and set up a date. And the rest, well, it's up to you. From Your Friends at Match.com Seventeen years ago, Match.com changed the world of online personals, dating and relationships, and inspired millions of single men and women. And now the #1 site for love, relationships and dating has done it again. Introducing Chemistry.com - the online personals site that understands … Continue reading →

Chemistry, a branch of physical science, is the study of the composition, structure, properties and change of matter.[1][2] Chemistry is chiefly concerned with atoms and their interactions with other atoms - for example, the properties of the chemical bonds formed between atoms to create chemical compounds. As well as this, interactions including atoms and other phenomena - electrons and various forms of energyare considered, such as photochemical reactions, oxidation-reduction reactions, changes in phases of matter, and separation of mixtures. Finally, properties of matter such as alloys or polymers are considered. Chemistry is sometimes called "the central science" because it bridges other natural sciences like physics, geology and biology with each other.[3][4] Chemistry is a branch of physical science but distinct from physics.[5] The etymology of the word chemistry has been much disputed.[6] The origin of chemistry can be traced to certain practices, known as alchemy, which had been practiced for several millennia in various parts of the world, particularly the Middle East.[7] The word chemistry comes from the word alchemy, an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism and medicine; it is commonly thought of as the quest to turn lead or another … Continue reading →

April 9, 2014 Image Credit: Stanford University [ Watch the Video: The $5 Chemistry Set ] redOrbit Staff & Wire Reports Your Universe Online A Stanford University professor has won a $50,000 prize for creating a prototype chemistry set that was inspired by and used parts from a toy music box, the California-based university announced on Tuesday. According to Kwame Opam of The Verge, assistant bioengineering professor Manu Prakash developed a small device that can be programmed to mix precise amounts of chemical fluids and could help address health and water-quality issues in developing countries. For his efforts, he was awarded $50,000 towards the development of his prototype in The Science Play and Research Kit Competition (SPARK), a contest jointly sponsored by the Gordon and Betty Moore Foundation and the Society for Science & the Public that challenged participants to reimagine the chemistry set for the 21st century. Prakash, who was assisted on the project by graduate student George Korir, believes that his chemistry set could be useful in less fortunate parts of the world while also doubling as an educational toy for children. In one part of our lab weve been focusing on frugal science and democratizing scientific tools … Continue reading →

The prize-winning chemistry set. Photo: George Korir As a boy growing up in India, Manu Prakash once undertook a DIY pyrotechnics experiment that didnt quite go as planned. He managed to start a fire and burn his hand. I had an extreme chemistry experience, said Prakash, whos now a bioengineer at Stanford. Prakash hopes to kindle some of the same curiosity about chemistry (minus the actual combustion) with a new hand-crank operated chemistry set for kids. A prototype of the device just won the $50,000 first prize in a contest for inspiring science toyssponsored by the Gordon and Betty Moore Foundation and the Society for Science & the Public. (The runners up include a kid-friendly neurophysiology kit that converts electrical signals from the muscles and brain into lights and sound see the video below). A closeup of the device, with different colors representing different chemicals. Photo: Stanford University The chemistry kit developed by Prakash and graduate student George Korir manages to be both cutting edge and retro at the same time. It uses microfluidic channels like those found in modern DNA chips and other molecular biology equipment to move chemicals around and mix them together. But it also uses punch … Continue reading →

The inspiration for a portable, powerful chemistry set came not from cloud computing or nanotechnology but a decidedly old-school source: a toy music box. The handheld device could be used where electricity and hospitals are scarce, allowing things like water testing and making medications. Stanford assistant professor of bioengineering Manu Prakash was struck by the idea when its wife brought home an old music box that used perforated paper to create a melody. By turning a crank, the paper is drawn through the device, and when a hole in the paper is encountered, a pin inside spins and plucks at a metal strip, creating a tone. But what if each pin, Prakash wondered, were to instead release a tiny droplet of a certain chemical? With the help of graduate student George Korir, Prakash managed to pair the music box mechanism with a more modern technology called a microfluidic chip. This uses tiny channels etched in silicon to deliver precise amounts of fluids stored elsewhere on the chip but generally require powered electronics to use, driving up the cost and difficulty of deploying them. When combined with the music box, however, the channels can be activated with the pins which once … Continue reading →