Record-breaking metamaterial
Researchers in Korea have created a new metamaterial -Physics World.
A recent follower of my blog posts on twitter reminded me that I have neglected the relatively recent materials science-solid state physics & condensed matter field of Metamaterials, which have caught the public imagination as possible roads to invisibility and stealth (the invisible cloak - Metamaterial Cloaking link-wikipedia)
Thanks to my follower's tweets I rapidly zoomed in and chose the link to recent research in the Metamaterial Field, in fact Physics Today the Popular Journal of the Institute of Physics UK,
The tweeted page Feb 2011 is the eye catching Metamaterials breaks refraction record.
"The refractive index of a material defines the angle through which light is bent when it travels between a material and the vacuum. Ordinary materials such as glass have refractive indices between one and three at optical frequencies, with a few materials like silicon approaching four. Over the past decade or so, physicists have been developing artificial materials with negative indices of refraction. These metamaterials bend light in the opposite direction to normal materials and can be used to make invisibility cloaks and superlenses.
While this new material has a positive index of refraction, its value is so large that it could lead to new terahertz technologies for security scanning and cancer diagnosis. The researchers also believe that the metamaterial could find use in invisibility cloaks."
Terahertz frequencies have potential in security checkpoints and skin cancer diagnosis.
Each article allows the reader to increase his learning experience by providing several related stories (typical of the professional scientific magazines) By choosing any of the related articles cf below will often open many more related articles.
Physics World related articles:
Negative-index material modulates light
Double-negative metamaterial edges towards the visible
Flexible metamaterial springs to life
Terahertz scanning acquires sense of direction
PREVIOUS POST
The Year 2008 in Materials from MIT's Tech Review
The Institute of Physics is a sister of our Institute of Materials, Minerals and Mining (IOM3) often referenced here. Both are UK scientific and professional bodies. Articles in Materials World are referenced below.
References:
History and Introduction to Metamaterials, Physics Today by JB Pendry & DR Smith
Overview - Scope of Metamaterials from Wikipedia
Materials World (MW): IOM3 references
3d-metamaterials-semiconductors
Metamaterials for magnifying superlenses
Unweaving-rainbow-Jack-Harris-muses-transparent-materials-and-refractive-indexes
Stealth-technology-ships__Access to Members only
Making light work silicon chips
MW Book Reviews
Electrical-properties-materials, Book Review
Optical-properties-solids-book review
Sunday, February 20, 2011
Monday, February 7, 2011
New Video posted to my Video Wall -Creativity in Education and the Future of Science. A must read for scientists and educators,
Watch Isacc Asimov and hear his views on this central issue to we scientists, communicators, and educators cf. the link below or via the video wall above.
Isaac Asimov on Creativity in Education & The Future of Science
Isaac Asimov on Creativity in Education & The Future of Science
Wednesday, February 2, 2011
As long as there is coal - Decision makers, People to meet: Scientists, engineers and industrialists. Programmes to Clean-up
As long as there is coal - it is a safe bet that it will be used. In the light of current best knowledge of impact on climate change, (many posts on these pages) the question then becomes how best to proceed.
The upcoming pan European Union conference, Coal-gen-europe.com , will be the latest attempt address the multi-faceted issues involved in order to achieve the near impossible dream of clean coal.
As announced above "as long as there is coal -..... A further step in the proper direction will be taken thanks to the above meeting. It will prove to be an indispensable stopping place on the very necessary road to a much improved cleaner coal life cycle from from mine to energy & its infamous greenhouse gas CO2. Delegates from all sectors will meet and exchange knowledge opinions and intentions as to future events (road or better rail maps) This is the place for our high temperature materials scientists to polish their R & D plans, for Steel and Ceramic producers to gear-up their production offer. All industrial aspects are on the agenda.
Programme & People [pdf]
The upcoming pan European Union conference, Coal-gen-europe.com , will be the latest attempt address the multi-faceted issues involved in order to achieve the near impossible dream of clean coal.
As announced above "as long as there is coal -..... A further step in the proper direction will be taken thanks to the above meeting. It will prove to be an indispensable stopping place on the very necessary road to a much improved cleaner coal life cycle from from mine to energy & its infamous greenhouse gas CO2. Delegates from all sectors will meet and exchange knowledge opinions and intentions as to future events (road or better rail maps) This is the place for our high temperature materials scientists to polish their R & D plans, for Steel and Ceramic producers to gear-up their production offer. All industrial aspects are on the agenda.
Programme & People [pdf]
Saturday, January 29, 2011
Metallic Glasses - Amorphous Metallic Alloys _New Video posted to my Materials Science wall -
Metallic glass, amorphous alloy energy storage and restitution is compared to a traditional crystalline alloy by dropping a steel ball bearing similtaneously on each type of alloy.
The experimental demonstration is shown in an entertaining way in the video just added to my video wall - widget above. In fact this video is also a window to 16 others. So stay tuned and watch all 17 demos.
An excellent souce of ideas for the innovator.
A full description from the basic ideas which differentiate metals from glasses through to some of the most recent research on metallic glasses, are described in simple terms for the general reader as well as the material scientist.
Aspects such as corrosion resistance, strength, toughness and energy storage are described in quite simple terms for the general public, and the technical minded in the article entitled
When-cleavage-is-a-bad-thing
The experimental demonstration is shown in an entertaining way in the video just added to my video wall - widget above. In fact this video is also a window to 16 others. So stay tuned and watch all 17 demos.
An excellent souce of ideas for the innovator.
A full description from the basic ideas which differentiate metals from glasses through to some of the most recent research on metallic glasses, are described in simple terms for the general reader as well as the material scientist.
Aspects such as corrosion resistance, strength, toughness and energy storage are described in quite simple terms for the general public, and the technical minded in the article entitled
When-cleavage-is-a-bad-thing
Friday, January 28, 2011
NEW - OPEN SOURCE - SCIENCE ENGINEERING AND MEDICAL BOOKS - FREE TO DOWNLOAD
AS I WRITE, THE MATERIALS SCIENCE LIBRARY CURRENTLY HOLDS 20 TITLES, ADD 14 EARTH SCIENCE TITLES, PLUS 39 TECHNOLOGY TITLES, AND EVEN MORE EXTENSIVE ENGINEERING COLLECTION (122 Electrical & Electronic, 83 General Engineering) etc...
Materials Science (20)
THE TECHNOLOGY LIBRARY IS ALSO IMPRESSIVE:
Technology (39)
ENGINEERING
FULL LIBRARY:
SCIENCE, TECHNOLOGY, ENGINEERING AND MEDICAL BOOKS - FREE TO DOWNLOAD
Link to InTechOpen
Materials Science (20)
- Ceramics (2)
- Fibre science (3)
- Nanomaterials (5)
- Polymers (2)
THE TECHNOLOGY LIBRARY IS ALSO IMPRESSIVE:
Technology (39)
- E-learning (2)
- Energy systems (9)
- MEMS (1)
- Nanotechnology (7)
ENGINEERING
- Engineering (83)
FULL LIBRARY:
SCIENCE, TECHNOLOGY, ENGINEERING AND MEDICAL BOOKS - FREE TO DOWNLOAD
Link to InTechOpen
Tuesday, January 25, 2011
UK University rank 2010 Final. Check it out
Check Your UK University Rank here
All comments, criticism, remarks etc are most welcome.
Faculty satisfaction with the ranking methods are very variable - Tell us more.
All comments, criticism, remarks etc are most welcome.
Faculty satisfaction with the ranking methods are very variable - Tell us more.
Wednesday, January 12, 2011
Engineering Courses in Ontario Canada options and degree courses in Metallurgy and Metallurgical Transformation
Let me give readers another perspective and highly successful approach to Engineering. Engineering Courses in Ontario Canada brought my attention to Conestoga Community College a most fruitful window on education and employment in Ontario, Canada.
Conestoga is a young University and Polytechnic with an enviable record:
-Since it's inauguration in 1967, it has been rated N°1 College in Ontario for nine of the last eleven years.
-Graduate job placement rate is 94.2% six months after graduation.
-Conestoga is an outstanding Polytechnical Institute and a founding member of Polytechnics Canada
-Full-time Students: 8,500 - Apprenticeship Students: 4,000 - Part-time Students: 38,000
-40% of all adults in Waterloo Region have taken at least one course at Conestoga.
-Conestoga graduates annually inject $1.4 billion into the local economy.
-It offers 120 full-time programs, 37 apprenticeship related programs, 7 four-year bachelor degree programs, 3 collaborative degrees, 25 post-graduate certificates and over 100 part-time programs.
-Conestoga has six campuses: Doon (Kitchener), Waterloo, Guelph, Stratford, Cambridge and Ingersoll.
-Conestoga’s loan default rate is the lowest in the province at 6.8%. We attribute this, at least partially, to the fact so many of our students get excellent jobs after graduation! Last year Conestoga provided $20 million in student loans.
AIMS
-To champion innovation and excellence in education and training.
-To serve responsibly the diverse and ever-changing needs of the community.
-To inspire students and employees to strive toward their highest potential.
METALLURGY and MECHANICAL PROCESS ENGINEERING
-Powder Metallurgy.
-Welding
-BSc in Applied Mechanical Systems-extrusion, wire and bar drawing, sheet metal working, powder metallurgy
-MSc and BSc degrees conferred[Pdf]
MORE on Conestoga :
-Introduction,
-Community-Colleges Index.htmls.net
-reports
Canadian Colleges and Cegeps – « Collège d'enseignement général et professionnel ».
Canada currently has 146 colleges and cegeps in 115 towns and cities covering 13 provinces and territories. We provide access to all the key information you need to know about each community college, technical college or cegep in Canada. You can browse colleges by city or province. Each college listing will provide information such as number of students, contact info, admissions, tuition fees, financial aid and interesting facts about the college. You can also access our college program directory if you are looking for information about a specific program or area of study.
More on education in Ontario
All Canada
Conestoga is a young University and Polytechnic with an enviable record:
-Since it's inauguration in 1967, it has been rated N°1 College in Ontario for nine of the last eleven years.
-Graduate job placement rate is 94.2% six months after graduation.
-Conestoga is an outstanding Polytechnical Institute and a founding member of Polytechnics Canada
-Full-time Students: 8,500 - Apprenticeship Students: 4,000 - Part-time Students: 38,000
-40% of all adults in Waterloo Region have taken at least one course at Conestoga.
-Conestoga graduates annually inject $1.4 billion into the local economy.
-It offers 120 full-time programs, 37 apprenticeship related programs, 7 four-year bachelor degree programs, 3 collaborative degrees, 25 post-graduate certificates and over 100 part-time programs.
-Conestoga has six campuses: Doon (Kitchener), Waterloo, Guelph, Stratford, Cambridge and Ingersoll.
-Conestoga’s loan default rate is the lowest in the province at 6.8%. We attribute this, at least partially, to the fact so many of our students get excellent jobs after graduation! Last year Conestoga provided $20 million in student loans.
AIMS
-To champion innovation and excellence in education and training.
-To serve responsibly the diverse and ever-changing needs of the community.
-To inspire students and employees to strive toward their highest potential.
METALLURGY and MECHANICAL PROCESS ENGINEERING
-Powder Metallurgy.
-Welding
-BSc in Applied Mechanical Systems-extrusion, wire and bar drawing, sheet metal working, powder metallurgy
-MSc and BSc degrees conferred[Pdf]
MORE on Conestoga :
-Introduction,
-Community-Colleges Index.htmls.net
-reports
Canadian Colleges and Cegeps – « Collège d'enseignement général et professionnel ».
Canada currently has 146 colleges and cegeps in 115 towns and cities covering 13 provinces and territories. We provide access to all the key information you need to know about each community college, technical college or cegep in Canada. You can browse colleges by city or province. Each college listing will provide information such as number of students, contact info, admissions, tuition fees, financial aid and interesting facts about the college. You can also access our college program directory if you are looking for information about a specific program or area of study.
More on education in Ontario
All Canada
Subscribe to:
Posts (Atom)