Highlights from the "Modern Marvels Invent Now Challenge"
The Boston Globe
Durable fly ash bricks: Fashioned from the dust created by the smoke of coal-burning power plants, these bricks use air bubbles to make them as strong as conventional bricks.
Durable fly ash bricks: Fashioned from the dust created by the smoke of coal-burning power plants, these bricks use air bubbles to make them as strong as conventional bricks. Inventor: Henry Liu, 69, retired engineering professor, Columbia, Mo.