Mechanical clocks had been invented before the half of the second millennium, but, in the 16th century, they have been perfected by Galileo with the help of the pendulum. Clocks have become more advanced in time as people discovered ways of making the mechanism more precise and also of smaller proportions.

Europeans also became acquainted with the gunpowder in the Renaissance period and warfare had been taken to a whole new level. It is not clear whether Europeans have invented gunpowder alone or if they've been inspired for the concept from the Asians. As a result of this invention, knights had become out-dated as the new armed foot-soldiers became more numerous, replacing them.

The invention of eye-glasses earlier in the millennium led to the invention of the telescope somewhere between the late sixteenth century and the early seventeenth century. Galileo helped in popularizing the invention, and, with it, he discovered several impressive facts for the time.

One of the greatest inventors of the Renaissance was Leonardo da Vinci with his inventions becoming well-known...

Besides inventing a number of impressive devices, da Vinci described several mechanisms that were built several centuries after his death. He had been extremely gifted, as he had experience in numerous domains. He is recognized by some for having been one of the greatest painters ever to have lived.
The Renaissance period has been crucial in the development of mankind and of civilization as it exists today.

Works cited:

1. a. Wolf, F. Dannemann, "A History of Science, Technology and Philosophy in the 16th & 17th Centuries," George Allen & Unwin, 1935.

2. Agnes Heller, R.E. Allen, "Renaissance man," Routledge, 1984.

3. Kendall Haven, "100 Greatest Science Inventions of All Time," Libraries Unlimited, 2006.

A. Wolf, F. Dannemann, "A History of Science, Technology and Philosophy in the 16th & 17th Centuries," George Allen & Unwin, 1935.

Agnes Heller, R.E. Allen, "Renaissance man," Routledge, 1984.

Kendall Haven, "100 Greatest Science Inventions of All Time," Libraries Unlimited, 2006.