Dry Ice Makes Breath Visible (Sep, 1934)

I suppose this would work if they didn’t have to talk…

Dry Ice Makes Breath Visible

MOTION picture directors can produce scenes in any climate by means of trick settings and clever mechanical devices. Critics have charged, however, that some snow scenes lacked realism because they lacked the usual phenomenon of breath becoming visible upon striking cold air.

Dr. Frank G. Nolan, Hollywood physician, has solved the problem. He has invented a device for motion picture actors that makes their breath visible in “frozen North” scenes taken in the sunshine of California. The device is similar to a dental plate and fits over the teeth of the actor.

The secret of the invention is that it enables the player to hold dry ice in the mouth without harmful results.

  1. Stannous says: July 28, 20079:25 pm

    Okay, first, if were an actor and asked to stick a piece of dry ice in my mouth I’d demand a percentage of the box office and make the FX guy do it first.
    Second, the vapor from dry ice is heavier than air and always sinks whereas visible breath in the cold always rises.
    Like every Witch’s cauldron that is supposed to be boiling and instead of rising the steam sinks, it’s just a cheesy but flawed effect.

  2. RangerGordon says: March 8, 20084:27 pm

    The article fails to mention that the device also successfully reproduces that strange but well-known effect cold air in the frozen North has on speech: It makes you sound like you’ve got a poker chip in your mouth.

    In my part of the world, we can barely understand each other between November and March.

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