Environment & Science News
Why is it that when we are young, we “sleep like a baby,” but start to have difficulty sleeping through the aging process? Of course, during youth, we don’t typically have the stressful burdens that accompany life, but research suggests your hormones might be the cause of many of the most common sleep complaints.
Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers at Chalmers University of Technology, Sweden, have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation.