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    Battery-Less Pacemaker:

    June 5, 2017, Categories  Health/Medical, Biology/Biotechnology

    The internal components of a battery-free pacemaker introduced this week by Rice University and the Texas Heart Institute. The pacemaker can be inserted into the heart and powered by a battery pack outside the body, eliminating the need for wire leads and surgeries to occasionally replace the battery. Courtesy of Rice Integrated Systems and Circuits

    The internal components of a battery-free pacemaker introduced this week by Rice University and the Texas Heart Institute. The pacemaker can be inserted into the heart and powered by a battery pack outside the body, eliminating the need for wire leads and surgeries to occasionally replace the battery. Courtesy of Rice Integrated Systems and Circuits

    Researchers test microwave-powered device. A wireless, battery-less pacemaker that can be implanted directly into a patient’s heart is being introduced by researchers from Rice University and their colleagues at the Texas Heart Institute (THI) at the IEEE’s International Microwave Symposium (IMS) in Honolulu June 4-9...

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    Engineer Unveils new spin on Future of Transistors with Novel Design

    June 5, 2017, Categories  Chemistry/Nanotechnology, Physics

    All-carbon spin logic gate. Figure 1 Magnetoresistive GNR unzipped from carbon nanotube and controlled by two parallel CNTs on an insulating material above a metallic gate. As all voltages are held constant, all currents are unidirectional. The magnitudes and relative directions of the input CNT control currents ICTRL determine the magnetic fields B and GNR edge magnetization, and thus the magnitude of the output current IGNR.

    All-carbon spin logic gate.  Magnetoresistive GNR unzipped from carbon nanotube and controlled by two parallel CNTs on an insulating material above a metallic gate. As all voltages are held constant, all currents are unidirectional. The magnitudes and relative directions of the input CNT control currents ICTRL determine the magnetic fields B and GNR edge magnetization, and thus the magnitude of the output current IGNR.

    All-carbon spin logic gate. Magnetoresistive GNR unzipped from carbon nanotube and controlled by two parallel CNTs on an insulating material above a metallic gate. As all voltages are held constant, all currents are unidirectional. The magnitudes and relative directions of the input CNT control currents ICTRLdetermine the magnetic fields B and GNR edge magnetization, and ...

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    ‘Scrambled light’ Wavemeter Breakthrough

    June 5, 2017, Categories  Physics, Technology/Electronics

    Wavemeter setup: (a) Laser light is delivered into an integrating sphere (S) of diameter Dsphere, via an angled single mode fibre (SMF), where it undergoes numerous scattering events. A camera (C) located at a distance L from the integrating sphere observation port captures the speckle patterns. A wavemeter or Fabry–Perot interferometer (REF) is used to benchmark the speckle wavemeter. (b) An example of a speckle pattern captured by the camera at a wavelength of 780 nm with an image size of 512 × 512 pixels (with individual pixels of 4.5 × 4.5 μm2). The white scale bar denotes 200 pixels, and the colour bar shows the intensity in normalized units.

    Wavemeter setup: (a) Laser light is delivered into an integrating sphere (S) of diameter Dsphere, via an angled single mode fibre (SMF), where it undergoes numerous scattering events. A camera (C) located at a distance L from the integrating sphere observation port captures the speckle patterns. A wavemeter or Fabry–Perot interferometer (REF) is used to benchmark the speckle wavemeter. (b) An example of a speckle pattern captured by the camera at a wavelength of 780 nm with an image size of 512 × 512 pixels (with individual pixels of 4.5 × 4.5 μm2). The white scale bar denotes 200 pixels, and the colour bar shows the intensity in normalized units.

    A breakthrough innovation in the measurement of lasers can measure changes one millionth of the size of an atom and could revolutionize...

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    Extreme Exoplanet: Astronomers discover Alien World Hotter than most Stars

    June 5, 2017, Categories  Astronomy/Space

    1.Artist illustration of star KELT-9 and its ultrahot planet KELT-9b. (Robert Hurt / NASA/JPL-Caltech) 2. KELT North telescope in Arizona. (KELT Collaboration)

    1.Artist illustration of star KELT-9 and its ultrahot planet KELT-9b. (Robert Hurt / NASA/JPL-Caltech)
    2. KELT North telescope in Arizona. (KELT Collaboration)

    Imagine a planet like Jupiter zipping around its host star every day and a half, superheated to temperatures hotter than most stars and sporting a giant, glowing gas tail like a comet. That is what an international research team led by astronomers at Ohio State and Vanderbilt universities think they have found orbiting a massive star they have labeled KELT-9, located 650 light years from Earth in the constellation Cygnus. With a day-side temperature peaking at 4,600 Kelvin, the newly discovered exoplanet, KELT-9b, is hotter than most stars and only 1,200 Kelvin cooler than our own sun...

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