What is 3G and why is it being shut down? An electrical engineer explains
As the wireless telecommunications companies ramp up their 5G rollouts, they are beginning to pull the plug on their 3G networks. 2022 is the end of the line for the venerable cellphone service.
Mai Vu, Associate Professor of Electrical and Computer Engineering, Tufts University •
conversation
Feb. 22, 2022 • ~8 min
Feb. 22, 2022 • ~8 min
Trust comes when you admit what you don’t know – lessons from child development research
People often try to seem confident and certain in their message so it will be trusted and acted upon. But when information is in flux, research suggests. you should be open about what you don’t know.
Mark Sabbagh, Professor of Psychology, Queen's University, Ontario •
conversation
Feb. 15, 2022 • ~10 min
Feb. 15, 2022 • ~10 min
How 5G puts airplanes at risk – an electrical engineer explains
Airplanes use radio waves to determine how far off the ground they are. New 5G cellphone services come close to the same frequencies the airplanes use. Here’s how that can be a problem.
Prasenjit Mitra, Professor of Information Sciences and Technology, Penn State •
conversation
Jan. 25, 2022 • ~6 min
Jan. 25, 2022 • ~6 min
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