Nation: AN ATOM-AGE GLOSSARY

Blast Wave, also referred to as the shock wave, is the wall of pressure generated by a nuclear explosion. It speeds outward from the explosion point at 2,000 m.p.h., slows as the distance increases.

CONELRAD is an abbreviation for Control of Electromagnetic Radiation. It is an emergency communications system in which all commercial broadcast stations will leave the air except those assigned to instruct the public at 640 and 1,240 kilocycles. It is intended to nullify enemy equipment that uses radio signals to pinpoint targets.

Dosimeter. An instrument that indicates the amount of radiation a person has absorbed.

Gamma Rays, generated by a nuclear...

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!