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policy statement regarding research on geoengineerin in the US (in force from July 2009-July 2012)

looking forward to your recommendations how we can get into it quickly :-)

Avoiding plagiarism, self-plagiarism, and other questionable writing practices: A guide to ethical writing

One basic molecule allows to achieve a broad range of material stiffness.

Any ideas for material studies?

A paper claiming to have the perfect production technique for bio-inspired robotics.

Next astronaut suit: Electronic systems that offer elastic mechanical responses to high-strain deformations are of growing interest because of their ability to enable new biomedical devices and other applications whose requirements are impossible to satis

energy consumption meter that integrates with google powermeter. bottom-up smart grid?

The integration makes it pretty innovative.

Anyone's going to apply? Just so that I know my competition... ;-)

damn!! they look for someone with the "greatest personal integrity" -- I am out

I'm game :)) I'll pay for everyone's beers with my limitless paycheck after I get it!

Stacking laser printed supercapacitors (no clean room required btw) has lead to about 1100F/g and thus about 20-40Wh/L. For supercapacitors thats pretty damn good. For reference, Li-ion recently reached 650Wh/L. The gap is closing, although for supercaps of this type the theoretical maximum is 1400F/g.

is this the breaktrough that we were waiting for?

That depends on what application you are thinking of. For circuit board electronics this will allow integration of micro sized supercapacitors to provide operational power. They will have to be fed by external batteries still, but the close proximity allows for better tailored power demands. They also propose tapping into thermal/mechanical energy to charge the supercaps. In the end, they can provide significant specific power (W/kg) but you still need to upscale the production to cover large areas to also gain high specific energy (Wh/kg). This breakthough is for micro sized applications, not for replacement of large scale energy storage (electric vehicles, satellites) going up to kWh. That said, I know of several studies in supercaps at ESA, but they are still qualifying current relatively old commercial solutions.

A nanolaser, a thousand times thinner than a human hair.

Quoted from one of the authors in a separate interview: "We know that the spin states of atomic nuclei associated with semiconductor defects have excellent quantum properties at room temperature," said Awschalom, Liew Family Professor in Molecular Engineering and a senior scientist at Argonne National Laboratory. "They are coherent, long-lived and controllable with photonics and electronics. Given these quantum 'pieces,' creating entangled quantum states seemed like an attainable goal." Bringing the quantum world to the macroscopic scale could see some interesting applications in sensors, or generally entanglement-enhanced applications.

They were previously working on the same concept in N-V centers in diamond (as a semiconductor). Here the advantage is that SiC could in principle be integrated with Si or Ge. Anyway its all about controlling coherence. In the next 10 years some breakthroughs are expected in the field of semiconductor spintronics, but quantum computing in this way lies still in the horizon

Great engineering feat from Capasso's idea - an integrated flat lens electrically controlled enabling dynamic beam steering. Reconfigurabilility is the aim. The lens can be used microscope systems, holographic and projection imaging, LIDAR and laser printing. Besides working now on the mid-IR, visible light is the target.

Prince Rupert's drops (PRDs), also known as Batavian tears, have been in existence since the early 17th century. They are made of a silicate glass of a high thermal expansion coefficient and have the shape of a tadpole. Typically, the diameter of the head of a PRD is in the range of 5-15 mm and that of the tail is 0.5 to 3.0 mm. PRDs have exceptional strength properties: the head of a PRD can withstand impact with a small hammer, or compression between tungsten carbide platens to high loads of ∼15 000 N, but the tail can be broken with just finger pressure leading to catastrophic disintegration of the PRD. We show here that the high strength of a PRD comes from large surface compressive stresses in the range of 400-700 MPa, determined using techniques of integrated photoelasticity. The surface compressive stresses can suppress Hertzian cone cracking during impact with a small hammer or compression between platens. Finally, it is argued that when the compressive force on a PRD is very high, plasticity in the PRD occurs, which leads to its eventual destruction with increasing load.

Loss of connectivity in the multisensory integration cortical areas after short term microgravity experience, which could explain astronauts decrease of performance in sensorimotor tasks and spatial working memory. However, the effect should wear off after a few days in microgravity and after adaptation to incongruent vestibular information. ISS experiment needed...

One overview about a recent publication (10/06/2014 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.236802) showing room temperature operation of a new type of laser 'discovered' in 2013, the polariton laser. This new type of laser shows extremely low threshold current density - 2 orders of magnitude below Vertical Cavity Surface Emitting Lasers (VCSEL) - and it is believed to become one important component of nanophotonic integrated components.

At its Ignite conference today, Microsoft announced its moves to embrace the next big thing in computing: quantum computing. Later this year, Microsoft will release a new quantum computing programming language, with full Visual Studio integration, along with a quantum computing simulator. With these, developers will be able to both develop and debug quantum programs implementing quantum algorithms.

Making a jumping spider eye with nanophotonics and computer vision: depth from defocus with an integrated mentalens sensor! Some in the ACT might be familiar with the concept...