How does Wi-Fi work? An electrical engineer explains

Wi-Fi has become a fundamental part of modern digital life, but its foundation is the same as the technology that allowed your great-grandparents to listen to their favorite radio programs.

Bhaskar Krishnamachari, Professor of Electrical Engineering, University of Southern California • conversation
Jan. 12, 2021 ~5 min

internet electromagnetic-spectrum wi-fi radio-waves curiosity electromagnetic-waves

Magnetic induction cooking can cut your kitchen's carbon footprint

Shifting from fossil fuels to electricity is climate-friendly, but serious cooks don't think much of electric stoves. Will induction cooking finally catch on as an alternative?

Kenneth McLeod, Professor of Systems Science, and Director, Clinical Science and Engineering Research Laboratory, Binghamton University, State University of New York • conversation
Dec. 23, 2020 ~9 min

climate-change energy electricity cooking natural-gas magnetic-fields electromagnetism household-appliances

Magnetic vortices come full circle

The first experimental observation of three-dimensional magnetic ‘vortex rings’ provides fundamental insight into intricate nanoscale structures inside bulk

Cambridge University News • cambridge
Nov. 30, 2020 ~5 min

advanced-materials physics electromagnetism

New laser hits mark on cancer imaging to airport security

Harvard researchers have developed a totally new type of laser that can reach terahertz frequencies offering short-range, high-bandwidth wireless communications, very-high-resolution radar, and spectroscopy.

Leah Burrows • harvard
Nov. 15, 2019 ~7 min

 science-technology  engineering  physics  electromagnetic-spectrum  federico-capasso  laser  terahertz-frequencies  tunable-terahertz-laser