Adafruit will not be shipping USPS orders Monday February 18, 2019 for the federal holiday, Presidents Day.
Expedited USPS orders placed after 11am ET Friday February 15 will go out Tuesday February 19.
Researchers in Grenoble have had an original idea: to prevent a Wi-Fi network from being hacked, with a wallpaper insulation, which no longer allows waves to leave the apartment. Other utilities may be found in such technology, such as protection of sensitive individuals to electromagnetism.
The article (translated) says the wallpaper is designed to allow phone frequencies in and out.
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