Hans Lippershey is was a big inventor and scientific.

He invented the telescope.
He live was born in 1570, Wesel, Germany Alemania  septiembre de 1619 but lived in Middelburg, Holland.
It is not known but started working with glass.
In 1608 he created the telescope but they also said that there was another inventor who invented it but he was the man who established the design parenteral.
He also named a moon crater with its name.
A description of the instrument quickly lay in arrived at the hands of Galileo Galilei.
They also say that the planes of the telescope is was the theft of his own father Jacob Metius.
This lens grinder German is considered the creator of the telescope, but tradition says a child was playing in the shop and got in line Lippershey two lenses Given this fortuitous event observed by the lens grinder, developed the instrument would become known as scope.
He died on 16th setembre

Information and photo form the wikipedia

Galileo Galilei was born near Pisa on 15th February 1564.

He was physicist, astronomer and mathematician.

He discovered that the Earth rotated around the Sun,it didn’t like to catholics, they belived that the Earth was the center of  Universe,by this question he was convicted to prison.

He and Klepler began the cientific revolution, it finished with Isaac Newton.

His main contribution to astronomy was the telescope.

He observed and discovered the Sun-spots,valleis and Moon mountains and four satellites of Jupiter.

In the History of the culture, he is a symbol of  fight for investigation freedom.

He died on 8th January 1642, 77 years old in Archetri ( Florence ).

Information from : http://www.astromia.com/biografias/galileo.htm

Image from: wikipedia

Alexander Fleming discovered the Penicillium notatum.
He was born in on 6th august the 1881.
Hi died in on 11 March the 1955.
Fleming was a Scottish biologist and pharmacologist.
He wrote many articles on bacteorology, immunology and chemoterapy.
His best know discoveries are the discovery of the enzyme lisozyme in 1923 and the antobiotic substance penicllin from the mould Penicillium notatum in 1928.

Information from wikipedia
Photo from Smithsonianmag.com