Archive | Earth, Energy & Environment


To banish blues, get outdoors

Feeling down? Take a hike. A new study finds quantifiable evidence that walking in nature could lead to a lower risk of depression. Specifically, the study, published in Proceedings of […]


New nanogenerator harvests power from rolling tires

A group of University of Wisconsin-Madison engineers and a collaborator from China have developed a nanogenerator that harvests energy from a car’s rolling tire friction. An innovative method of reusing […]

Electricity’s human cost- Less sleep

Electricity’s human cost: Less sleep

Easy access to electricity and artificial light triggers a measurable reduction in human sleep, according to a new study of hunter-gatherer communities in Argentina. Researchers studied two groups of Toba/Qom […]


Better batteries, half price

An advanced manufacturing approach for lithium-ion batteries, developed by researchers at MIT and at a spinoff company called 24M, promises to significantly slash the cost of the most widely used […]