Balls

Lab-grown testicle organoids that closely resemble the real thing provide a promising model for research that may help our understanding of testicular development and translate into therapeutic applications for male infertility.

A new initiative by the Los Angeles Department of Water and Power (LADWP) has taken a surprisingly low-tech approach to water conservation, by covering the LA Reservoir in 96 million black "shade balls." It's an attempt to combat water loss through evaporation, and to heighten water quality.

Purdue University's Professor Mark French and his graduate students, Craig Zehrung and Jim Stratton, have built an air gun that fires a ping-pong ball at over Mach 1.2 (900 mph or 1,448 km/h).

Researchers from the University of Maine have created biodegradable golf balls, made from waste lobster shells.