when rotated 180 degrees,

ambigrams. i didn't know about this until i started reading Angels and Demons. perfect symmetry. words such as earth, fire, air, water, and 4 of them written one after another downwards can also be an ambigram. (the Illuminati Diamond) so, during your free time, kill it by looking up all these things in the net. last night, my brother's friend wanted him to send a document regarding some Nus Geography Course. so, instead of sending him the document on the Nus Geography Course, my brother sent this picture: