Aerographite: Six times lighter than air, conductive, and super-strong German material scientists from Kiel University and the Hamburg University of Technology have created the world’s lightest material, dubbed aerographite. One cubic centimeter of aerographite weighs just 0.2 milligrams, which is four times lighter than the previous record holder, 5,000 times less dense than water, and six times lighter than air. Aerographite, as you can see from the picture above, is a mesh of carbon tubes, each around 15nm in diameter, interwoven at the micro- and nano-scale level. It is electrically conductive, ductile, jet black (non-transparent), and can withstand high compression and tensile loads. Aerographite can be compressed to a 30th of its original size, gaining extra strength and conductivity in the process, and spring back without any damage to its structure — or it can carry up to 40,000 times its own weight. “Think of the aerographite as an ivy-web, which winds itself around a tree.
The United States Mint About Us Print Friendly The United States Mint recognizes the need for structured training programs to maintain a high level of skill and competence within your position. When you join the United States Mint, you gain a partner in your success. The Mint’s training and development program can offer access to a wide range of learning opportunities that can strengthen abilities and advance careers. Career Development and Training opportunities are available to all United States Mint employees. Apprenticeship Program The United States Mint has established an apprenticeship program focused on specific training opportunities for employees within its Manufacturing Department. Leadership Development can be pursued through a wide range of programs for employees in supervisory positions.
How To Explain Japan in 7 Words Or Less posted by John Spacey, Japan Talk, March 12, 2014 There are Japanese words that help you speak. There are other words that help you to understand Japanese culture — the way that Japanese people think. These 7 words are critical to understanding Japanese culture: 1. Genki (元気) In Japan health, enthusiasm and energy are all part of a single concept: genki. 2. Mottainai is the sense of regret you feel when you waste something. 3. Ganbatte can be translated "do your best!". 3. Kawaii is cute. 4. Otsukare means "fatigue". When people leave the office at night they say — otsukaresama deshita (you're tired). 5. Shoganai can be translated "it can't be helped". It's used to explain why most Japanese people aren't interested in politics. 6. Yoroshiku is the most difficult Japanese word to translate. 7. Itadakimasu can be translated "I humbly receive". Permalink: