RT @mental_floss: The Quick 10: 10 Amazing Discoveries by Kids Β http://www.mentalfloss.com/blogs/archives/78629
(https://www.frederickcalica.com/?p=3358316)RT @mental_floss: The Quick 10: 10 Amazing Discoveries by Kids Β http://www.mentalfloss.com/blogs/archives/78629
(https://www.frederickcalica.com/?p=3358316)