May the Fourth be with you! My son plans to celebrate with Lego sets.
Here are some of the most interesting science news stories I read this week:
Prosthetic arms can provide controlled sensory feedback, study finds
Scientists decry lack of science in "forensic science"
Artificial intelligence helps soldiers learn many times faster in combat
Researchers lay out how to control biology with light--without the help of genetics
ALS reseachers begin recreating human spinal cords on a chip
Physicists find signs of a time crystal
Solar powered sea slugs shed light on search for perpetual green energy
Newly improved glass slide turns microscopes into thermometers
Have a good weekend, and I'll see you Monday.