Science: Fall-Out Filter

In an H-bomb attack, U.S. cities as far as 190 miles away from the actual explosion could expect a deadly fallout of wind-borne radioactive particles (TIME, Feb. 28). Last week in Madison, Wis., the U.S. Forest Products Laboratory described a new building material called "diffusion board," that can protect against direct contact with radioactive dust.

Developed for the Army Chemical Corps, diffusion board resembles ordinary wood-pulp fiberboard, ⅝ in. thick. Impregnated with special chemicals (the kinds are still classified), it acts much like an ordinary Army gas mask, filters out gases and germ-carrying...

Want the full story?

Subscribe Now

Subscribe
Subscribe

Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on TIME.com

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!