Yes it is. A fundamental part of thermodinamics. The formula is a variation ( reduced form ) of the van der Waals equation. It's an equation of state of real fluids. In simple terms it can tell : when a material will be gas and when it will be liquid. en.wikipedia.org/wiki/Van_der_…
It's a quite cute piece, also, as mentioned before, that fire extinguisher is a nice touch x3
If i were Mary, though, as soon as he said "beautiful wings" i'd just pick that fire extinguisher and hit the guy hard. on the head, with it, several times. and then set him on fire, and then leave, and burn the school, then fly away triumphally.
Not really. Accidents happen, and it's better if there are no witnesses, of other threats left. If you have the power, you make sure noone won't fool around with you ever again.
EDIT: As someone who most of their worst experiences in "education centers" have started that very way, it is not very hard to get and think that personal gain would be the least of this person's interest's on the situation of the image.
Little word of explanation : Since 1957, the United States Air Force uses, amongst others, a very, very high-flying spy plane : the Lockheed U-2 (en.wikipedia.org/wiki/Lockheed…. This plane is nicknamed the "Dragon Lady".
So, since Mary is an young female dragon in partially human form, I nicknamed her U2, since she is literaly a dragon lady.
I'm in Mechanical Engineering classes and feel ridiculous that for the life of I don't remember this equation. Hopefully I'll remember it soon. Anyway, wonderful picture and it truly feels like a new day of school.
After 7 years of lurking, I think this picture deserves my very first comment. It's so beautiful, it actually makes me sad. Sad that it's only a drawing and not real. The setting and the mood are simply heart touching. Please keep up your excellent work