Russian Tankers and Machinery

Had a psychedelic dream of flashbacks to when I was in Cuba, and I saw an old Soviet cement mixer still in operation, slowly chugging its way up a steep incline, pollutant spewing through its exhaust pipe as its socialist messages inscribed on the mixer spun. The mixer must've been 50 years old, and the 25-year-old Russian Ladas, their steering wheels now reduced to the bars underneath, sped past it angrily.

Socialist realist art, I have to say, is awesome stuff; I'd like to see its productio n well past the death of the ideology. The stark, 2D characters, their red fists impossibly holding children as their smiley, cold faces beneath the sun turn proudly towards sleek tanks somehow tiptoeing through fields blooming with flowers

Art and Science

What are the similarities and differences between Art and Science?
It seems to me that science attempts to understand all aspects of the external world, while art attempts to express the internal world; that of the brain - primarily the feelings and experiences of the individual and/or group.

Of course another's brain, to somebody, is the external world. Films, paintings and poetry can convey to me the internal world of somebody else. But then so can (sometimes) brain scans...

I'm not saying that a brain scan is anything like a poem today. But couldn't a heap of information read like a poem to a scientifically advanced creature? Can't scientific information steadily represent more and more of what Art can, as a form of human expression?