The work of University of Technology Sydney (UTS) forensic science researcher Dr Xanthe Spindler has made an important step towards recovering usable fingerprints from old evidence and surfaces long considered too difficult by crime scene investigators.
How do solar cells convert sunlight into electricity? If you are new to solar cells, here is a great introductory video from the VegaScience Trust's great Instructional Science and Engineering Videos series by Jonathan Hare.
The heart of a scanning probe microscope is a moveable, suspended tip, which, like the needle on a record player, reacts to small height variations on the surface, and turns these into signals that can be displayed on a computer. Researchers have now been able to create this tip, not out of solid material, as in the case of the record player, but out of an ultra-cold, dilute gas of atoms. To do this, they cooled an especially pure gas of rubidium atoms to a temperature less than a millionth of a degree above absolute zero temperature, and stored the atoms in a magnetic trap. This 'quantum tip' can be precisely positioned and enables the probing of nanostructured surfaces.
A radically new approach to the design of batteries, developed by researchers at MIT, could provide a lightweight and inexpensive alternative to existing batteries for electric vehicles and the power grid. The technology could even make 'refueling' such batteries as quick and easy as pumping gas into a conventional car.
Three molecules thick, or two, or one: how does an extremely thin layer of trapped liquid behave when we make it even thinner? Measurements made using the Atomic Force Microscope show that the forces of friction increase with each step.
As of yesterday, all PDF versions of books published by the National Academies Press will be downloadable to anyone free of charge. This includes a current catalog of more than 4,000 books plus future reports produced by the Press.