ANSOM Microscope Achieves Sub 10nm Resolution

ANSOM — apertureless near-field scanning optical microscope is able to resolve less than 10 nm. Prior versions could only get to about 20nm. The Stephen Quake group, California Institute of Technology, developed a new phase filtering method. The fluorescence near-field microscope can distinguish single molecules. The microscope’s phase filtering method can also be applied to …

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Skewed risk perceptions: How you say it matters

A WHO discussion of skewed risk perceptions Positive or negative framing? Striking changes in preference can result from framing the risk in either positive or negative terms, such as lives saved or lives lost, rates of survival or mortality, improving good health or reducing risks of disease Relative or absolute risks? Although relative risks are …

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World Health Organization estimates 3 million killed by outdoor air pollution

The World Health Organization (WHO) says 3 million people are killed worldwide by outdoor air pollution annually from vehicles and industrial emissions, and 1.6 million indoors through using solid fuel. Most are in poor countries. One study says 7-20% of cancers are attributable to poor air and pollution in homes and workplaces. Wikipedia discusses air …

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UK Proposal for sub-angstrom precision computer controlled actuators

Another proposed project from the UK Ideas factory to create reconfigurable computer controlled actuators with sub-nanometer to sub-angstrom precision. We propose a scheme to revolutionise the synthesis of nanodevices, nanomachines, and, ultimately, functional materials via the positional assembly of molecules and nanoscale building blocks. Computer-directed actuators will be used to drive (with sub-nanometre to sub-Angstrom …

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Bacteria resistant artificial skin

Skin cells genetically engineered to be resistant to bacteria could reduce infections and improve chances of survival among burn victims. A patient’s skin cells, genetically modified and grown in a test tube, could provide the next generation of artificial skin. As a first step in creating such replacement skin, scientists in Cincinnati have engineered bacteria-resistant …

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NSF looking for Grand Challenges for Engineering

We can submit our challenges for friendly AI, molecular nanotechnology, large scale quantum computers, and mass producible thorium liquid fluoride reactors to the NSF. The NSF is looking for the greatest technological challenges of the next century — a nine-month process that could give birth to new research initiatives. The project, called the “Grand Challenges …

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Fabbers

New Scientist has an article about a new fab@Home system for $2400 The fab@home This system is in the fabber category which has different systems of different capabilities. The MIT Fab lab is described in many places The MIT fablab is more expensive at $20,000-40000 There is also the inexpensive Reprap system which is about …

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A rack-and-pinion device at the molecular scale

Christian Joachim, has lead a research team that has made a molecular rack-and-pinion device for which an STM tip drives a single pinion molecule at low temperature. The pinion is a 1.8-nm-diameter molecule functioning as a six-toothed wheel interlocked at the edge of a self-assembled molecular island acting as a rack. They monitor the rotation …

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Space articles roundup

An article discussing evidence for and against ice on the moon I agree that we should continue with sending the robotic probes necessary to be absolutely certain about what ice is or is not there and what can be used. An article that discusses getting energy from space or deflecting sunlight to counter global warming. …

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Futurehype is an interesting book

Futurehype by Bob Seidensticker is an interesting book and there are excerpts at his website He does point out some problems that make technology and societal predictions hard. However, I believe it is possible to be quite accurate. I agree with him that understanding the past and the past of technology matters.I agree with him …

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