When working on the ATF Advance Tactical Fighter F-22 we researched self shielding. So the number is 18 twists per foot. However the gauge does not have to get to be very small before the wire is too and stiff to twist. Shielding was very important to this stealth aircraft. My mentor researched wire impedance. The theory was developed and proven in the 1930 - 1940. What are the components of wire — cable impedance?
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
Ear-based heart-rate monitoring gained momentum recently, as sensor maker Valencell Inc. announced it has licensed its biometric earpiece technology to Samsung Electronics Co. Ltd for use in so-called “hearable devices.”
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