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Bio-inspired Fibres Change Colour When Stretched

By Guest PostFebruary 6, 2013Sciencealfie lethbridge, bastard hogberry, bio inspired fibres, birds, blue colour, bright iridescent, cells, change colour, creation, cylindrical cross section, eye on earth, fruit, geographic area, Germany, harvard laboratories, harvard university, heat, joanna aizenberg, key elements, light and colour, ludwig maximilians university, margaritaria nobilis, mathias kolle, moritz kreysing, nanoscale, new fibre, peter vukusic, photonic fibres, polymer bilayer, pressure, principal investigator, seed, skin, smart fabrics, soap bubbles, south american, specific biological function, technological design, tropical plant, unique structural elements, university of exeter, vibrant colour, when stretched

A team of materials scientists at Harvard University and the University of Exeter has invented a new fibre which changes colour when stretched. Inspired by nature, the researchers identified and replicated the unique structural elements, which create the bright iridescent blue colour of a tropical plant’s fruit.

The multilayered fibre, described in the journal Advanced Materials, could lend itself to the creation of smart fabrics that visibly react to heat or pressure.

“Our new fibre is based on a structure we found in nature, and through clever engineering we’ve taken its capabilities a step further,” says lead author Dr Mathias Kolle, a postdoctoral fellow at the Harvard School of Engineering and Applied Sciences (SEAS). “The plant, of course, cannot change colour. By combining its structure with an elastic material, however, we’ve created an artificial version that passes through a full rainbow of colours as it’s stretched.” (more…)

Research by CU-Boulder Physicists Creates ‘Recipe Book’ for Building New Materials

By Guest PostJanuary 1, 2013Scienceamherst, bohdan senyuk, China, coffee cup, colloids, colorado boulder, continuously deformed, creation, ivan smalyukh, liquid crystal, liquid crystal displays, materials genome initiative, mathematical theorems, Pennsylvania, president barack obama, qingkun liu, randall kamien, recipe book, robert kusner, sailing he, tiny particle, tom lubensky, topology, university, university of massachusetts, White House, zhejiang university

By showing that tiny particles injected into a liquid crystal medium adhere to existing mathematical theorems, physicists at the University of Colorado Boulder have opened the door for the creation of a host of new materials with properties that do not exist in nature.

The findings show that researchers can create a “recipe book” to build new materials of sorts using topology, a major mathematical field that describes the properties that do not change when an object is stretched, bent or otherwise “continuously deformed.” Published online Dec. 23 in the journal Nature, the study also is the first to experimentally show that some of the most important topological theorems hold up in the real material world, said CU-Boulder physics department Assistant Professor Ivan Smalyukh, a study senior author. (more…)

Television: Chronicle of a Death Foretold?

By Guest PostNovember 24, 2012Mediaandre h caron, balance of time, bell media, calgary, canadian productions, canadian programming, children, creation, cross canada study, cyms, endangered, Environment, made in canada, media platform, montreal, nuclear family, publication, quality, quebec, social impact, st john, television, television programs, toronto, tv, université de montréal, vancouver, young canadians

Not only is TV not endangered, but it also has a unifying social impact on the nuclear family across the country. This is the main conclusion of a cross-Canada study—Are the Kids All Right?—on the television viewing habits of families with at least one child aged between 9 and 12 years. The study was conducted by a team of researchers led by André H. Caron, professor of communications at the Université de Montréal and Director of the Centre for Youth and Media Studies (CYMS).

“Young Canadians today live in a different world than that experienced by previous generations. In this context, many well-placed observers have predicted the impending death of television,” says Dr. Caron. “We wanted to test the veracity of this statement, so we set out to meet 80 different families (over 200 participants) to determine the current place of the small screen that has shaped so many childhoods since its creation.” (more…)

U.S. Believers Favor International Action on Climate Change, Nuclear Risk: UMD Poll

By Guest PostDecember 8, 2011Culture, Environmentamericans, author, belief in god, catholics, climate change, combat, conservative, creation, evangelicals, global policy, global poverty, greenhouse gases, john steinbruner, liberal, nuclear risks, nuclear war, poll, religious americans, spiritual obligation, spread of nuclear weapons, steven kull, united states, university of maryland, us population

COLLEGE PARK, Md. – A majority of Americans professing belief in God favor cooperative international efforts to combat climate change and the spread of nuclear weapons, says a new public opinion poll conducted jointly by the University of Maryland’s Center for International and Security Studies at Maryland (CISSM) and its Program on International Policy Attitudes (PIPA).

The nearly 1,500 Americans surveyed include large numbers of Catholics and Evangelicals.

The study, Faith and Global Policy Challenges: How Spiritual Values Shape Views on Poverty, Nuclear Risks, and Environmental Degradation, also finds that a majority of believers consider addressing global poverty a “spiritual obligation,” and think that the United States should work cooperatively with other nations to reduce it. (more…)

Tag Archives: creation

Bio-inspired Fibres Change Colour When Stretched

Research by CU-Boulder Physicists Creates ‘Recipe Book’ for Building New Materials

Television: Chronicle of a Death Foretold?

U.S. Believers Favor International Action on Climate Change, Nuclear Risk: UMD Poll