If you need to create a high vacuum, there are basically two options: turbomolecular pumps and diffusion pumps. Turbomolecular pumps require rotors spinning at many thousands of rotations per ...
With BLS, BEA and Census paused, the Fed and markets lose their compass. What’s delayed, what to watch, and why the risks are ...
Early travel reads out of China undercut the Golden Week hype, and Wall Street hit the Macau-levered names. Here is what the ...
What could possibly go wrong? Now I'm not known for my mechanical prowess so taking the screwdrivers to something that isn't ...
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How to use servos on your layout
I enjoy animating scenes on my O gauge layout, and have come across a great way to get slower, more-precise realistic action: ...
Australian news outlets reported a meetinghouse of The Church of Jesus Christ of Latter-day Saints was destroyed in a fire early Monday.
Abstract: This paper presents a surface micromachined Pirani gauge for measuring vacuum pressure inside sealed micro cavities. This thin gap (800nm) SiO/sub 2//Si/sub 3/N/sub 4//SiO/sub 2/ gauge can ...
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