The tighter a knot is tied, the stronger the material becomes.
By suspending tiny metal nanoparticles in liquids, Duke University scientists can use conductive ink-jet-printed conductive “inks” to print inexpensive, customizable RFID and other electronic circuit patterns on just about any surface — even on paper and plastics.
Printed electronics, which are already being used widely in devices such as the anti-theft radio frequency identification (RFID) tags you might find on the back of new DVDs, currently have one major drawback: for the circuits to work, they first have to be heated to 200° C (392°F) to melt all the nanoparticles together into a single conductive wire.
Researchers have identified a drug that can regenerate teeth from the inside out, possibly reducing the need for artificial fillings.
The drug was previously used in Alzheimer’s clinical trials, and it now appears to improve the tooth’s natural ability to heal itself. It works by activating stem cells inside the tooth’s pulp centre, prompting the damaged area to regenerate the hard dentin material that makes up the majority of a tooth.
“The simplicity of our approach makes it ideal as a clinical dental product for the natural treatment of large cavities, by providing both pulp protection and restoring dentine,” said lead author Paul Sharpe from King’s College London.
Interesting position.
Anonymous by request.
“The human energy field exists as an array of oscillating energy points that have a layered structure and a definite symmetry and these properties fulfill the definition of a normal crystal in material form” – Marc Vogel.
The human body is a universe onto itself; a vast, intricate system of incredible sensitivity and detail. It has been the subject of wonder, philosophy and scientific study for centuries, yet its most elemental design is still shrouded in mystery. What is the relation of biological life to the Cosmos – to the fabric of space and time itself? Is our body the “earthen machine” of Descartes; an “automaton” of discrete mechanical function? Are we really locked in an endless struggle against the ticking clock of thermodynamic entropy – of increasing disorder – as is the view of contemporary physics? The fractal-holographic model sheds new light on these questions; a unified description of the Cosmos reveals its true relation to Man, a relationship so entangled, so intimate that the two cannot be viewed apart…
Stronger Graphene; can you imagine have a car or SUV that is solid like a Sherman Tank and weighs the same or less than your car or SUV does today; or a commercial jet that it’s fuselage remains intact when it crashes while protecting others inside; or a building that does not get ripped apart in a tornado? With this form of graphene it may be possible.
Now a team of researchers at MIT have developed a computer model that simulates fusing flakes of graphene into three-dimensional configurations.
According to the researchers, Graphene is a strong material. As such, the porous graphene material can be used in the construction industry by creating strong and light materials.
This also suggests that other strong and lightweight materials can be made stronger as well by taking on similar geometric features. They were mechanically tested for their tensile and compressive properties, and their mechanical response under loading was simulated using the team’s theoretical models.
And it’s inspired by X-Men’s Wolverine.
In Brief
Engineers from Tufts University have just created a new, versatile material that could be optimized for a number of purposes, particularly within the medical field. The material was constructed out of special proteins called silk fibroins, and it can be programmed for specific biological, chemical, or mechanical tasks. The study was published online in Proceedings of the National Academy of Sciences (PNAS).
The team used water-based fabrication methods inspired by protein self-assembly to produce 3D bulk materials from silk fibroin. Fibroin, the structural protein that gives silk its durability, was chosen because it allowed for the easiest manipulation of the resulting substance’s form, as well as smoother modification of function. It’s also completely biodegradable.
Creating tunable terahertz radiation.
Indium arsenide quantum dots in gallium arsenide wafers offer wider pump-wavelength range, significantly higher thermal tolerance, and higher conversion efficiency than typical terahertz radiation sources.

The terahertz (THz) range of electromagnetic waves (0.1–10THz)—which lies between the microwave and optical regions—is of great interest. This is mainly because this band of the electromagnetic spectrum includes the frequencies of rotational and vibrational spectra of complex (e.g., biological) molecules. Most dielectric materials are transparent in the THz region, and THz waves are already used in many biomedical applications (e.g., for the detection of dangerous and illicit substances, as well as for the diagnosis and treatment of diseases). Photoconductive antennas are the most-developed room-temperature sources of THz radiation. However, ultrafast low-temperature-grown gallium arsenide (GaAs)—which is typically used as a substrate for such antennas—suffers (because of its large band gap) from low thermal efficiency, low carrier mobility, and a pump limit at a wavelength of about 850nm.