It is 100 years since Einstein finished coming up with his field equations for general relativity.... and they have stood the test of time. We came up with a unique T-shirt to celebrate this event, and there is just one day left to order the shirt! Any of the profits from the sale go to support InsightSTEM projects and programs! Your T-shirt should arrive in time for November 25th which is the 100th anniversary of the publication of Einstein's paper on this!
You can order yours TODAY at http://teespring.com/GR100