September 2024 * Vol. 48 No. 9 Contents Features 8 Products of Tomorrow 14 Robotics Virtual Twins Offer a Simulation-Based Approach to Real-time Operations 18 Engineering a New Approach to Satellite Constellation Design 40 Exploring Dark Matter with the Help of Robotic Fiber Positioners 45 Space Station Germ Testing Improves Wastewater Monitoring 48 Making EVs Accessible for All Tech Briefs 24 Sensors 24 Rapidly Testing Stretchable Sensors 25 Wearable Sensors Detect Pathogens, Toxins 26 Modified VR Tech to Measure Brain Activity 27 Smart Glove Can Boost Hand Mobility of Stroke Patients 28 Communications 28 Unlocking the Next Generation of Wireless Communications 29 3D Processors May Revolutionize Wireless Communication 30 New Transistor Could Shrink Communications Devices on Smartphones 31 Manufacturing & Prototyping 31 RTV Silicone Sealing Method for Component Interfaces 31 3D Printing with an Unknown Material (Manufacturing & Prototyping continued on page 4) 2 www.techbriefs.com Tech Briefs, September 2024 32 25 48 Departments 6 Click 10 5 Ws 11 Q&A 12 Videos of the Month 47 Advertisers Index New for Design Engineers 41 New on the Markethttps://www.techbriefs.com