Leonardo's inventions

http://en.wikipedia.org/wiki/Science_and_inventions_of_Leonardo_da_Vinci#War_machines

This website is about Leonardo's inventions. There are war machines, flights, hydraulic, and bridge. Some inventions built by someone, like the bridge. The most invention that make me interested is the flight, because Da Vinci made the wings like the bat. Also, there was a helicopter
which is similar than the modern one.

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This is a helicopter, the propeller is similar than the modern one. This machine needs to starts by four men. If it is more flawless, it can fly in the air. However, this piece just a note.

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This is a cannon, and it is a terrible war machine. It can threw stones like a storm with smoke, and it will cause a great terror. It was built by the British Army, but it didn't work. It coudn't fire successfully. I think if the gunpowder invented at that time, Leonardo's invention will work. This is really amazing that a man can draw the machine which people invented after hundreds of years.

Renaissance harmony and beauty

This painting is "The last judgement" by Michelangelo in 1536-41.

There's a great balance in this painting. You can see the left side is people who go to heaven, and the right side is down to the inferno. This two scene against each other, but it makes this painting more harmonious. Jesus is the center in it, he sits in middle of the top. This great design makes Jesus seems more powerful, and this piece becomes beautiful.

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The Virgin and Chancellor Rolin--was painted in 1435 by Jan Van Eyck.

I find a great beauty in this painting. If I draw a line in middle, there's a window right on it. It shows a symmetrical balance. There's a cool design: The figures are larger in the forground, it makes the figures stand out. It may destroy the harmony, but shows the balance.