Shoppers at a UK mall have the opportunity to try out autonomous transport pods this week which — in a UK first — operate entirely without supervision.

Continue Reading . . . https://www.engadget.com/2020/01/21/uk-begins-testing-unsupervised-autonomous-transport-pods/

Refrigerators are a necessary aspect of modern life, but most of them rely on a cooling mechanism called vapor compression—and the vapors involved tend to be potent greenhouse gases that can contribute to global warming when they escape into the atmosphere.

Continue Reading . . . https://www.scientificamerican.com/article/a-simple-twist-of-thermodynamics-could-lead-to-greener-refrigeration/