No. The organ is one of the few instruments that has a pedal keyboard. A pedal keyboard has exactly the same arraignment of keys as a manual keyboard but of larger and a more "foot friendly" design.
Not only you can play with your hands, you can play it with your feet as well.
Yes. Almost all composers of that era played the organ and the pipe organ was the only organ. Electronic and reed organs had not yet been developed.
His main instrument was the pipe organ. He also played the harpsichord.
The manuals are the keyboards that you play with your hands (There's also the pedal board, which you play with your feet.)
The pipe organ was invented by the Greek Ctesibius.
The pipe organ is a keyboard instrument.
The instruments most similar to a pipe organ are:Flute (pipe organ has flute pipes of different lengths)Harmonium
Organ pipe coral was created in 1758.
There is none. The pipe organ was not invented. It developed in ancient times. However, there are thousands of patents concerning pipe organ parts.
Organ pipe cacti make no noise.
Not directly, but was known to have played the pipe organ in a church on rare occasions.
The only commonality is that they both have a keyboard. Otherwise there is no similarity.