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Research...

on February 21, 2014

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Research is what I'm doing when I don't know what I'm doing. -- Wernher von Braun

Famous Quotations Science Friday

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What is the schematic symbol for a ferrite bead?

This is a ferrite bead. Ferrite Bead - through the hole variety So what is the schematic symbol for a ferrite bead? According to the IEEE 315 standard for Graphic Symbols for Electrical and Electronics Diagrams, the ferrite bead schematic symbol is: IEEE 315 Ferrite Bead Schematic Symbol Additionally, there are several other ways commonly used to denote a ferrite bead on a schematic: Ferrite Bead Ferrite Bead Ferrite Bead Ferrite Bead Good DX and 73, NJ2X Subscribe to the NJ2X Kindle Edition

Passing Jupiter

Here comes Jupiter! NASA's robotic spacecraft Juno is continuing on its 53-day, highly-elongated orbits around our Solar System's largest planet. The featured video is from perijove 11, the eleventh time Juno has passed near Jupiter since it arrived in mid-2016. This time-lapse, color-enhanced movie covers about four hours and morphs between 36 JunoCam images. The video begins with Jupiter rising as Juno approaches from the north. As Juno reaches its closest view -- from about 3,500 kilometers over Jupiter's cloud tops -- the spacecraft captures the great planet in tremendous detail. Juno passes light zones and dark belt of clouds that circle the planet, as well as numerous swirling circular storms, many of which are larger than hurricanes on Earth. After the perijove, Jupiter recedes into the distance, now displaying the unusual clouds that appear over Jupiter's south. To get desired science data, Juno swoops so close to Jupiter that its instruments may soon fail due

Horsehead: A Wider View

Combined image data from the massive, ground-based VISTA telescope and the Hubble Space Telescope was used to create this wide perspective of the interstellar landscape surrounding the famous Horsehead Nebula. Captured at near-infrared wavelengths, the region's dusty molecular cloud sprawls across the scene that covers an angle about two-thirds the size of the Full Moon on the sky. Left to right the frame spans just over 10 light-years at the Horsehead's estimated distance of 1,600 light-years. Also known as Barnard 33, the still recognizable Horsehead Nebula stands at the upper right, the near-infrared glow of a dusty pillar topped with newborn stars. Below and left, the bright reflection nebula NGC 2023 is itself the illuminated environs of a hot young star. Obscuring clouds below the base of the Horsehead and on the outskirts of NGC 2023 show the tell-tale far red emission of energetic jets, known as Herbig-Haro objects, also associated with newborn stars. via NASA http://i

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