Video - Stefan W. Hell (2015) : Optical Microscopy: the Resolution Revolution Throughout the 20th century it was widely accepted that a light microscope relying on conventional optical lenses cannot discern details that are much finer than about half the wavelength of light (200-400 nm), due to diffraction. However, in the 1990s, the viability to overcome the diffraction barrier was realized and microscopy concepts defined, that can resolve fluorescent features down to molecular dimensions. In this lecture, I will discuss the simple yet powerful principles that allow neutralizing the limiting role of diffraction1,2. In a nutshell, feature molecules residing closer than the diffraction barrier are transferred to different (quantum) states, usually a bright fluorescent state and a dark state, so that they become discernible for a brief period of detection. Thus, the resolution-limiting role of diffraction is overcome, and the interior of transparent samples, such as living cells and tissues, can be imaged at the nanoscale.
Logic Self-Taught: A Workbook (by Dr.P.) Logic Self-Taught: A Workbook © Katarzyna Paprzycka (dr.p) [Katazhyna Papzhytska] propositional logic, predicate logic, Katarzyna Paprzycka, Dr.P., propositional logic, Logic Self-Taught: A Workbook, sentential logic, quantifier logic, logic for dummies, logic for everybody, logic for people, logic for students, logic textbook on-line, logic textbook for WebCT, logic textbook for Blackboard, logic textbook for e-learning, natural deduction, teaching logic, logic for high-school students, logic for non-logicians, logic for lawyers, logic for philosophers, teaching to do proofs, Bergmann, Moor, Nelson, The Logic Book, Solutions to logic exercises, logic help.
Planet Money Makes A T-Shirt Why A T-Shirt? We wanted to see the hidden world behind clothes sold in this country, so we decided to make a T-shirt. We wanted to make an ordinary shirt like the vast majority of the shirts sold in this country — not organic cotton, not hand-sewn in the United States. Quite Interesting The first 52 episodes have been taken down so that they can be scrubbed, remastered, packaged together and released as No Such Thing As A Fish - The Complete First Year of Facts. The release will include not only the first 52 episodes, but also a string of bonus content as well as this beautiful, exciting, oh-so-rock-n-roll exclusive vinyl episode. You can pre-order now, and your record will come with a code that allows you to download the full first year of No Such Thing As A Fish. Until then, we hope you continue to feast your ears on episodes 53 onwards and our International Factball series, not to mention a new podcast every Friday - all of which are available for free on Soundcloud, iTunes or wherever you usually get them.
Effective Presentations in Engineering and Science: Guidelines and Video Examples - VISUAL AIDS Visual aids are an important factor in a successful engineering or science presentation, and as a speaker, you should give careful consideration to your approach to visual aids. Unfortunately, many presenters rely on the default settings provided by PowerPoint to create slides for their presentations. Typically, this approach results in tiresome slides heavy with bulleted text and perhaps an occasional image. As a presenter, you should consider if this traditional slide design is in fact the best method for communicating scientific information. What research exists that supports the effectiveness of much bulleted text and the occasional image for the communication of scientific information?
5 Ways to Give Yourself an Education That Kicks the Crap Out of the One You Got in School 5 Ways to Give Yourself an Education That Kicks the Crap Out of the One You Got in School One of the biggest reasons that people are denied the privilege of education is because they can’t afford it. However, today we live in a world where knowledge and information are at our finger tips like never before. Food That Kills Thomas Edison was right about the importance of diet but wrong with his prediction about the future of doctors and medicine. We are living in the age of Edision’s future doctor and the last thing many of them seem to do is interest his patient in the care of the human frame and diet. The average meat eating American will consume 15 cows, 24 hogs, 900 chickens, 12 sheep and 1,000 pounds of birds/fish in their lifetime which is a tremendous amount of animal flesh to be consumed by the human body. The effect of such a diet is high blood pressure, clogged arteries, high cholesterol and heart attacks.
Maggi Alexander Maggi Alexander leads TPI’s Center for Global Philanthropy and in this role directs New England International Donors (NEID). An entrepreneurial leader, Maggi has spent over 25 years focused on improving the quality of life for low-income children, families, and communities in the United States and over 30 countries worldwide. She has extensive experience building partnerships and alliances that cut across traditional divides and has worked in the corporate, philanthropic, nonprofit, and public sectors.
Why Isis fights For more than a century, Dabiq was one of northern Syria’s forsaken villages, a speck on a vast agricultural plain between the Turkish border and the deserts of Iraq, which hardly seemed likely to shape the fate of nations. A weathered sign at its entrance said 4,000 people lived there, most of whom appeared to have left by 2013, driven out over time by a lack of work – and lately by insurrection. For the first three years of Syria’s civil war, the arrival of a strange car would lure bored children to the town’s otherwise empty streets, scattering cats and chickens as they scampered after it. Little else moved. Dabiq’s few remaining men worked on the odd building project: a half-finished mosque, a humble house for one local who had just returned after 10 years labouring in Lebanon, or a fence for the shrine that was the town’s only showpiece – the tomb of Sulayman ibn Abd al-Malik.
Oral Presentation Skills What information should you give in your speech? All your information should support purpose. In most cases you will have to limit the content, as time is usually precious! Quantity How much information should you give? Enough to clearly develop your ideas. Don't forget to illustrate through examples. 20 Places to Find Free Books Online The following is a guest post by Bailey Harris. There are many different sites offer free books online. Within minutes, you could find enough reading material in the form of e-books and audio books to keep you and your family entertained for months, if not years. The following sites provide free books that can be enjoyed online, downloaded to your computer, or transferred to an e-reader or MP3 player.
never met anyone like you - Current obsession: child beauty pageant documentaries Lately I've gotten fascinated with various documentaries on child beauty pageants; I'm always captivated by trainwrecks, and the more bad parenting and strange little children they have, the more captivated I am. (I'm sure you could put your kid in some sort of pageant and be a decent parent, but the ones in these aren't.) So, here are my summary/reviews of the various documentaries, along with links to where you can watch them for free online. Living Dolls: The Making of a Child Beauty QueenThis is far and away my favorite. Five-year-old Swan Brooner's mother Robin spends countless hours and thousands of dollars getting her ready for pageants, taking on three jobs in order to make it all financially possible.