Skip to main content
Scientific American
  • Cart 0
  • Forgot password?Loading
    Not yet registered?
  • |Newsletters
Advanced Search
  • Coronavirus
  • Health
  • Mind & Brain
  • Environment
  • Technology
  • Space & Physics
  • Video
  • Podcasts
  • Opinion
  • Store
  • Subscribe
  • Current Issue
  • Cart0
  • Sign In
  • Newsletters
      • Share
      • Latest

      Save 25% on all subscriptions

      Scientific American November 27, 1915

      Manufacture of Steel Helmets for the French Soldiers

      Why and How Two Million of These Head Protectors Were Made in Six Months

      • By Jacques Boyer on November 27, 1915

      This is a preview. Make a selection below to access this issue.Already have access? Sign in.

      Having trouble accessing this article? Please visit our FAQ page for more information

      More in the November 27, 1915 issue of Scientific American
      • A Car with Electro-Magnetic Transmission
      • Inventions New and Interesting - November 27, 1915
      • Recently Patented Inventions - November 27, 1915
      View Full Contents
      Visit our Librarian Gateway for additional information on purchasing a site license to this and other products

      Support Science Journalism

      Discover world-changing science. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners.

      Subscribe Now!Support Science Journalism

      Follow us

      • instagram
      • soundcloud
      • youtube
      • twitter
      • facebook
      • rss

      Scientific american arabic

      العربية
      • Return & Refund Policy
      • About
      • Press Room
      • FAQs
      • Contact Us
      • Site Map
      • Advertise
      • SA Custom Media
      • Terms of Use
      • Privacy Policy
      • California Consumer Privacy Statement
      • Use of cookies/Do not sell my data
      • International Editions
      Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific American maintains a strict policy of editorial independence in reporting developments in science to our readers.

      © 2022 Scientific American, a Division of Springer Nature America, Inc.

      All Rights Reserved.

      Scroll To Top

      Support science journalism.

      Scientific American paper issue and on tablet

      Thanks for reading Scientific American. Knowledge awaits.

      Already a subscriber? Sign in.

      Thanks for reading Scientific American. Create your free account or Sign in to continue.

      Create Account

      See Subscription Options

      Continue reading with a Scientific American subscription.

      You may cancel at any time.

      Sign in.