Minor wording change.
-10
Removed erroneous statement about matrices.
-238
Add link for Humphrey Bogard
m+4
Deleted duplicate (dog)
-9
Fixed reference, added link, wording cleanup
-12
Use standard notation for height.
-1
Removed stray text "in car"
-7
Ernest Moniz is the current Secretary of Energy
+2
no edit summary
+2