Da
Vinci’s Machines: Giant Crossbow
发现达文西只机械篇：巨型十字弓
Da
Vinci was an Italian Renaissance polymath. He invented machines for human uses.
Giant crossbow was one of his great inventions.
Crossbow
was one of the famous machines used in war field. It is a gun style machine.
1480, Da Vinci interested to know more about the engineering so he decided to
make a giant crossbow. That time he was at Milan. He designed the giant
crossbow with four giant crossbows in a giant circle view. The top of the
machines look like a solar panel but actually it is a shield which uses to
protect the people whom walk outside of the machine. Da Vinci’s idea was the
four crossbows can be shoot out in a shorter time and able to hit the target.
The machines required human power to activate it.
With
the idea of Da Vinci, I have modified the machine with my own idea. I plan to
activate by using solar power. The color of the solar panel is black which is
able to absorb the sunlight. Then, the solar power will turn into kinetic
energy and make the crossbow able to be shooting out. The crossbow will be
shooting out in four directions. There is a small motor at the stage. It
functions as turning the solar energy into kinetic energy.
Here
are some of the pictures of my own giant crossbow.
 |
| Base |
View from top
View from side
Finishing
There are three classes
of people...those you see,those see when they are shown and those who do not
see...(Da Vinci,1480)
