1400's

__The Printing Press__...was invented by Caxton William and the printing press print letters. It was invented in1476. Caxton William invented the printing press with a special purpose in mind. While the time changed printing press changed to a machine called printer and it is used in a much easier way. Because the printing press was invented we could make books. printing press can cause a long-term effect by cutting down trees to make papers to print on it. If this machine was not on the planet earth it would be very hard to make books.

Jae Min


 * //I would love to have a printing press in my house!//**
 * //By:Juan Carlos//**

-- __The Anemometer__


 * Leon Battista Alberti, Robert Hooke, and John Thomas Romney Robinson invented and revised the anemometer. The anemometer was created in 1450 in Italy. Leon Battista Alberti made it with a special purpose in mind: to measure speed of wind. it was revised 2 times and used way intended. The anemometer has'nt contributed so greatly to civilization, and could measure all speeds of wind.**
 * By: Juan Carlos**



The Carvel

The carvel is a light sailing ship that was developed by the portaguese in late 1400.And was was used for the next 300 years.


 * By:Nadia Fernandez**


 * //I guess that is the type of boat that Christopher Colombus used to sail to America!//**


 * //By:Juan Carlos//**

**
 * //I am impressed with all the things inventions can do//**
 * //by elena//**
 * //I can't believe that it sailed to america!//**
 * //abril//**