Telecom

When WiFi is weak, send noise instead

When WiFi was designed, it was intended for high-speed data communications. The Institute of Electrical and Electronics Engineers (IEEE) set the standards for communications—that's the 802.11 protocol, a familiar number ...

Energy & Green Tech

Lichens may one day detoxify the air in your home

When smoke from fires darken the skies as they did last summer, hunkering down indoors makes good sense. But on most days throughout the year, the air we breathe indoors carries far more pollutants than outdoor air. Exposure ...

Engineering

Green building progress in the '13th Five-Year Plan' for China

Building construction and operation account for 16% and 22%, respectively, of total carbon emissions in China. Those numbers are down, but still need significant work to achieve green building construction and carbon neutrality, ...

page 1 from 2