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MIT scientists have created the first fully digitally produced plasma sensor to orbit a spacecraft. These plasma sensors, also known as retarding potential analyzers (RPAs), are used by satellites to determine the chemical composition and energy distribution of ions in the atmosphere. The 3D printing and laser cut hardware works and the advanced semiconductor plasma sensors are manufactured in a clean room, which makes them expensive and requires weeks of complex fabrication. In contrast, 3D printed sensors can be produced for tens of dollars in a matter of days. Due to their low cost and fast production, these sensors are ideal for CubeSats. These inexpensive, low-power, and lightweight satellites are often used for communications and environmental monitoring in the Earth’s upper atmosphere. The researchers developed RPA using a glass-ceramic material that is more durable than traditional sensor materials such as silicon and thin-film coatings. By using glass-ceramic in a fabricat

Cell phone service providers fail to provide adequate coverage and sell consumer products they cannot use, according to the Telecommunications Industry Ombudsman. Key points: Ombudsman received 63,000 complaints about mobile phones in two years People are left without phone coverage during emergencies Help services operated by online bots and automation are not suitable for all customers A report released today shows cell phone complaints to the ombudsman’s office have surged over the past two years despite a decline in the overall number of complaints. The office received 63,000 complaints about cell phones during the period. The report details examples of people trapped without cell phone service in emergencies. “People come in with an idea of ​​what they think they want and they’re selling a product they may not want, need or understand,” says Telecommunications Industry Ombudsman Cynthia Gebert. Several people living in high-risk emergency areas told the ombudsman that they had los