Human aircraft

Today, I read the encyclopedia and saw the title of the manpower plane. I think it is impossible, and I will take a closer look. It turned out that the manpower plane was designed by the famous 15th century painter Da Vinci. However, it was not until a few hundred years later that an American doctor named Paul McRae designed a modern manpower plane. Now the manpower plane can not only fly, but also fly over the English Channel!

I think: I should grow up like Edison to be an invention king! ! !

In addition, there is a lot of knowledge in my encyclopedia, and I will not tell you one by one here.

Ok, let's work hard for tomorrow!