Four Years of NASA NEOWISE Data

This movie shows the progression of NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) investigation for the mission’s first four years following its restart in December 2013. Green dots represent near-Earth objects. Gray dots represent all other asteroids which are mainly …

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سروده ای از صائب تبریزی : چشم خونبارست ابر نوبهار زندگی

چشم خونبارست ابر نوبهار زندگی آه افسوس است سرو جویبار زندگی اعتمادی نیست بر شیرازهٔ موج سراب دل منه بر جلوهٔ ناپایدار زندگی یک دم خوش را هزاران آه حسرت در قفاست خرج بیش از دخل باشد در دیار زندگی …

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How to bend and stretch a diamond

This scanning electron microscope image shows ultrafine diamond needles (cone shapes rising from bottom) being pushed on by a diamond tip (dark shape at top). These images reveal that the diamond needles can bend as much as 9 percent and …

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Safety concerns over tungsten

In mice exposed to tungsten in drinking water, the element accumulated in porous tissue near the end of bones (left). Using synchrotron-based x-ray absorption techniques, researchers produced an image (center) mapping the presence of tungsten in a form resembling the …

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Developing micron-sized magnetic resonance

Using a 53-year-old electromagnet, Ron Walsworth has developed a system that uses atomic-scale impurities in diamonds to read nuclear magnetic resonance signals produced by samples as small as a cell. Kris Snibbe/Harvard Staff Photographer Developing micron-sized magnetic resonance Researchers use …

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