efficiently
Freeloading Ants Help the Workflow
Fire ants tunnels got excavated efficiently by only a small percentage of the group doing most of the work, thus avoiding pileups in tight spaces. Learn more ab…
System Converts Solar Efficiently to Steam
A graphite disk resting on carbon foam collects sunlight to heat water directly to steam with 85 percent efficiency. Cynthia Graber reports Learn more about you…





