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Earth Tube

 

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Tubes are hollow cylinders used for fluid transport, structural applications, or electrical sheathing. They are usually cylindrical in shape, but may have round, rectangular, or square cross-sections.
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Conduct Research Top

  • Technology Advances Equal Innovative Earth Station Designs
    As the commercial and military satellite communications industries matured throughout the past few decades, there has been an almost single continuous concentration: the constant need to use earth station equipment that offers the highest performance and reliability while being cost effective
  • From Earth to Mars--Carbon Dioxide Crystals Help Interplanetary Studies
    , and relatively moderate climate, is more like Earth than any other body in our solar system. Many scientists believe Mars holds a key to answering questions about the geologic and climatic history of the Earth. Over the next decade, the National Aeronautic and Space Administration (NASA) will investigate Mars
  • Beets: A Biodegradable Bonus for Earth-Friendly Plastics?
    . Briefing Room. Events. You are here: News & Events /. Contents Beets: A Biodegradable Bonus for Earth-Friendly Plastics? Sugar beet pulp is mixed with melted polylactic acid and passed through a twin-screw extruder. This results in pastalike strands (the brownish solid tubes coming out
  • Lightning Transients
    The major mechanisms by which lightning produces surge voltages are the following: * A direct lightning strike to an external circuit (outdoor) injecting high currents producing voltages by either flowing through earth resistance or flowing through the impedance of the existing circuit
  • Getting to know stepper motors
    it is the actual dynamic torque produced by the motor during operation, it is key to selecting the proper motor for an application. Magnets. Major torque improvements can be made with the stronger magnets. Upgrading ceramic magnets (of either anisotropic or isotropic forms) to rare-earth materials
  • Dataline Surge Protection: Stop Fried Boards, Corrupted Data
    data line to the local earth ground, and should be selected to begin conducting current at a voltage as close as possible above the system's normal communications level. For RS-422 and RS-485 systems, the voltage rating selected is typically 5 - 7 volts, in RS-232 systems 12 - 15 volt devices
  • Brooks Instrument Sends its Quantim Flow Controller into Space (.pdf)
    Delivering saline solution to a clinic for medical needs ... sounds simple enough, right? Not when that clinic is on the International Space Station, the moon or even Mars. Transporting medical fluids that are manufactured on Earth into space is expensive and logistically challenging. NASA Johnson
  • Wired 9.01: Zip Drive
    will leave for Mars: May 6, 2018, a Sunday. On that day, a half-dozen astronauts will launch from low Earth orbit on a 50-million-mile journey that will take 115 days to complete. On or about August 28, the voyagers will enter Mars orbit. Then, in a technological feat rivaled only by the moon landing

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