Feb 13 2011
Why the Lembke Dinosaurs are ExtinctThanks to Mike for sending this (I think)
What I Learnt On 13th February in other years
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13th February 2016
More bloody waves…putting Einstein to the test
![](https://whatilearnt.today/wp-content/uploads/2016/02/The_curvature_of_Space_Time-45x45.gif)