Motion-triggered monster heads, a witches´ brew of liquid nitrogen, a projector rigged for fright, and more. Here, our favorite high-tech haunting tricks made easy
By Theodore Gray and Paul Wallich
Posted 09.26.2006 at 2:00 am
The Bubbling Cauldron
Want a real witches’ brew? Mix soap-bubble solution with dry ice, or use liquid nitrogen for bubbles that release fog when they pop. In the following video, PopSci’s contributing mad scientist, Theodore Gray, uses the help of a few young assistants to create cauldrons of toil and trouble.
Here’s how it’s done:
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