Here’s a great little feature from Google Search. If you type Bubble Level in either Chrome or Firefox, with Google set as the search engine of choice on your mobile device, then you are greeted with a very cool interactive spirit level/bubble level guide. This also works when using OK Google’s Voice function.
This is a great little Easter Egg as some people may just want to have quick access to a basic level guide for hanging a picture or getting a surface straight without having to actually download and install a third-party app to do so.
I tested this on my Nexus 5 running the latest version of Android, Marshmallow 6.0.1.
Hat tip and +1 karma to reddit user mkgray for the original find.