Elements of Chemistry: Classification of Matter Matter Can Be Classified as Pure or Impure. Different ways that chemists classify matter are discussed. Note that 100% purity for any macroscopic sample of a material is an ideal state that... By: Conceptual Academy … Continue reading →

solubility, chemistry 11th and 12th cbse icse state boards, iit jee ,aieee,mains,advanced. By: bhaskar sharma … Continue reading →

With the challenge of heading into a season with younger and less-proven teammates, a rookie manager replacing one of the game's best and a difficult early schedule made more arduous by a spring that saw four key players land on the disabled list, the face of the Rays franchise offers a very basic goal. "To be competitive," Evan Longoria said. "I think that's the simple answer. Nobody wants to play a full year where you never give yourself a fighting chance to play in the postseason." Having joined the Rays in April 2008 and fueling their remarkable six-year run that included four playoff appearances, Longoria had known only success until last season, when grand expectations turned into a royal mess as they could not overcome a 24-42 start, including a brutal 1-14 stretch, which led to a 77-85 finish, far from contention. That experience will be a major point of reference for Longoria as they try to navigate the first part of this season without starting pitchers Alex Cobb, Drew Smyly and Alex Colome plus second baseman Nick Franklin. "My hope is we don't really start putting those pressures on ourselves like we did last year because I think that … Continue reading →

. IBM Researchers have emerged from their smoke filled labs having discovered a new class of polymer materials that could transform manufacturing and fabrication in the fields of transportation, aerospace, and microelectronics. The team mixed high performance computing with synthetic polymer chemistry and developed new materials that can resist cracking and are stronger than bone. They can also self-heal and are completely recyclable. The materials can be transformed into new polymer structures to bolster their strength by 50 per cent making them ultra strong and lightweight. Todays polymer materials are limited because they find it hard to cope with environmental factors (and exhibit poor environmental stress crack resistance. They are difficult to recycle because they cannot be remolded or reworked once cured or thermally decomposed by heating to high temperatures. The ability to selectively recycle a structural component would have significant impact in the semiconductor industry and advanced manufacturing as they could rework high-value but defective manufactured parts or chips instead of throwing them away. This could bolster fabrication yields, save money and significantly decrease microelectronic waste. James Hedrick, Advanced Organic Materials Scientist, IBM Research said that the new materials were critical to fixing major global challenges, developing new products … Continue reading →