Learn how to navigate the 4th dimension
My coworker Drew (http://traipse.com/) wrote a beautiful iPad app to teach about the fourth dimension (coordinate spaces and such.) http://fourthdimensionapp.com/
Learn how to navigate the 4th dimension launched on March 19, 2012 with 12 votes, #78 of 340 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 14 years on.
In plain words
This iPad app teaches users about the fourth dimension, coordinate spaces, and special relativity through interactive 3D visualizations. Designed for anyone curious about advanced physics and mathematics concepts, it makes typically abstract and counterintuitive ideas more accessible and easier to understand. The app transforms complex mathematical theory into engaging, hands-on learning experiences.
written from the facts on this page · September 2026
From the sources
Find out more about my app that explains the theory of special relativity and other projects.
I’m Drew Olbrich. In the past, I maintained a website of my personal projects at traipse.com , but it’s no longer active. You probably followed a link to a page about Penrose Tiles or my Thing in a Jar and wound up on this page instead. I’ve moved my base of operations here, to lunarskydiving.com . I’m creating apps about mind-bending science and math concepts that are normally unintuitive and hard to understand, but which can change how you think about reality . I want to make these ideas more accessible by transforming the mathematics behind them into interactive 3D models so you can “learn by doing”. The next app I’m working on uses augmented…from traipse.com
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