*Google’s Paper ✉ Signals are physical Assistant-controlled widgets 👍 that you can easily build*

Last month, Google expanded its Experiments program with a new category for voice interactions to demonstrate how developers can take advantage of conversations.

Usually app-based, the latest Voice Experiment is physical and involves paper crafts that signal a data point.

Similar to the AIY line of do-it-yourself artificial intelligence kits, which launched a new Vision Kit for computer vision last week, Paper Signals "explores how physical things can be controlled with voice."

Created in-house by the Google Creative Lab, these paper objects can track things like the weather, Bitcoin, and rocket launches.

For example, an umbrella-shaped contraption can be assigned to signal when it's going to rain, while a rocket-shaped item jets out flames when there is a launch.