SAN JOSE DEL GUAVIARE, COLOMBIA — Cerafín Méndez was out drinking one night when a fight broke out with his neighbor. The next day, three FARC soldiers came for him, bound his hands, and led him away.
That was the last time his family would see him alive.
Continue reading “Searching for the 80,000 Disappeared in Colombia’s Brutal Civil War” »
Optical microresonators convert laser light into ultrashort pulses travelling around the resonator’s circumference. These pulses, called “dissipative Kerr solitons,” can propagate in the microresonator maintaining their shape.
When solitons exit the microresonator, the output light takes the form of a pulse train—a series of repeating pulses with fixed intervals. In this case, the repetition rate of the pulses is determined by the microresonator size. Smaller sizes enable pulse trains with high repetition rates, reaching hundreds of gigahertz in frequency. These can be used to boost the performance of optical communication links or become a core technology for ultrafast LiDAR with sub-micron precision.
Exciting though it is, this technology suffers from what scientists call “light-bending losses”—loss of light caused by structural bends in its path. A well-known problem in fiber optics, light-bending loss also means that the size of microresonators cannot drop below a few tens of microns. This therefore limits the maximum repetition rates we can achieve for pulses.
Check out the CRAZIEST Cases Of MIND CONTROL In Nature! From brain controlled robot beetles to ants getting mind controlled by parasitic wasps, this top 10 list of amazing mind control techniques will shock you!
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Continue reading “CRAZIEST Cases Of MIND CONTROL In Nature!” »
SEATTLE, Wash. — There were 2,275 bolts of lightning in Saturday’s lightning storm that shocked Puget Sound, according to the National Weather Service on Sunday.
“To have this much lightning in the lowlands is exceptionally rare,” said Reid Wolcott, Warning Coordination Meteorologist for the National Weather Service.
MORE | Photos: Lightning fills the skies over the Puget Sound Region.
Sacrificial ink-writing technique allows 3D printing of large, vascularized human organ building blocks.
While X-rays can produce harmful radiation, a new technique using laser-induced sound waves provides highly detailed images of the structures in our bodies.
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Photoacoustic imaging is an emerging imaging technique that shoots micro-pulses of laser light at a specimen or body part, which selectively heats up parts of the tissue causing them to expand, and generate waves of pressure – a.k.a. sound waves.
Continue reading “A New Laser Technology Can See Inside Our Bodies Like Never Before” »
Researchers are blurring the distinction between brain and machine, designing nanoelectronics that look, interact, and feel like real neurons. Camouflaged in the brain, this neurotechnology could offer a better way to treat neurodenerative diseases or control prosthetics, interface with computers or even enhance cognitive abilities.
Electrodes implanted in the brain help alleviate symptoms like the intrusive tremors associated with Parkinson’s disease but current probes face limitations due to their size and inflexibility. In a recent paper titled “Precision Electronic Medicine,” published in Nature Biotechnology, Shaun Patel, a faculty member at the Harvard Medical School and Massachusetts General Hospital, and Charles M. Lieber, the Joshua and Beth Friedman University Professor, argue that neurotechnology is on the cusp of a major renaissance. Throughout history, scientists have blurred discipline lines to tackle problems larger than their individual fields.
“The next frontier is really the merging of human cognition with machines,” says Patel. “Everything manifests in the brain fundamentally. All your thoughts, your perceptions, any type of disease.” He and Lieber see mesh electronics as the foundation for these machines, a way to design personalized electronic treatment for just about anything related to the brain. “Today, research focused at the interface between the nervous system and electronics is not only leading to advances in fundamental neuroscience, but also unlocking the potential of implants capable of cellular-level therapeutic targeting,” write the authors in their paper.
The Sur Ron electric motorcycle is one of the most exciting off-road electric motorcycles to hit the scene recently. The high performance yet low-cost electric motorcycle showed off its abilities by smoking a bunch of gas motorcycles to win 1st place in a recent race. Check out the epic video below!
There are many different ways to think about probability. Quantum mechanics embodies them all.
Women innovators across the United States have been selected as AAAS IF/THEN® Ambassadors by the American Association for the Advancement of Science and Lyda Hill Philanthropies to share their stories and serve as high-profile role models for middle-school girls.
Information about the 125 women selected as AAAS IF/THEN® Ambassadors can be found at www.ifthenshecan.org/ambassadors.
IF/THEN®, a national initiative of Lyda Hill Philanthropies, seeks to further women in science, technology, engineering and math by empowering current innovators and inspiring the next generation of pioneers.
