Ptolemy

http://seds.lpl.arizona.edu/nineplanets/psc/theman.html
This website gives an overview of the numerous achievements of Ptolemy. It also
includes descriptions and images of his most notable accomplishments.

http://www.ncsa.uiuc.edu/SDG/Experimental/vatican.exhibit/exhibit/d-mathematics/Ptolemy_geo.html
This website includes an explanation of Ptolemy's "Handy Tables".

http://es.rice.edu/ES/humsoc/Galileo//Things/ptolemaic_system.html
This website discuss the most famous of Ptolemy's literary works.

http://members.home.net/mmpetros/index.html
This website includes several fragments from the Ptolemy library, including The Dead Sea Scrolls
and Rafaella: a Roman Love Story.

Aristotle

http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Aristotle.html
This website has a biography and a chronology of Aristotle, detailing all his accomplishments.

http://www.utm.edu/research/iep/a/aristotl.htm
Contains a detailed description of the life of Aristotle, one significant event at a time.

http://userwww.sfsu.edu/~rsauzier/Aristotle.html
Another chronology of Aristotle. Easy to read, large font.

http://www.ucmp.berkeley.edu/history/aristotle.html
It discusses the major astronomical accomplishments of Aristotle.

Copernicus

http://www.treasure-troves.com/bios/Copernicus.html
This website describes Copernicus' interest in astronomy and the astronomical
conclusions he reached.

http://www.frombork.art.pl/Ang02.htm
This website includes a timeline of the life of Copernicus and numerous pictures.

http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Copernicus.html
Gives an overview of the life of Copernicus and his many accomplishments.

http://www.blupete.com/Literature/Biographies/Science/Copernicus.htm
A biography of Copernicus, including links to other great scientists of similar fields.

http://www2.lucidcafe.com/lucidcafe/library/96feb/copernicus.html
Discusses the heliocentric solar system of Copernicus and includes information
on other related astronomers.

http://www.yesnet.yk.ca/schools/projects/renaissance/copernicus.html
Discusses the influence of the Polish astronomer, Copernicus and his heliocentric system.
It also has lots of bright colors.

http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
This website includes a number of easy to understand charts illustrating Copernicus'
contributions to the field of astronomy.

Leonardo da Vinci

http://www.leonet.it/comuni/vinci
This page tells all about his town of Vinci. Features are the historical monuments with in the town,
which are the castle museum which holds many of da Vinci's inventions and the Biblioteca Leonardiana
which contains the records of everything published on his work. This site also has a walk through of
the artist's life going by decades- Accompanying the walk through are pictures of the, house he was
born in and the streets of Vinci. Also has a panoramic view of the town. Interesting for a geographic
look at da Vinci's life.

http://banzai.msl.umn.edu/leonardo/
This web site is great for viewing paintings and features over thirty-nine paintings up front with three
other galleries with inventions, theories, and more paintings. What sets this one apart from other sites
is there are popular and not well-known- creations. It also gives many links to other great sites.
Mirror sites are also available just in case one is not-working right. It is a great site for viewinf pictures
in large format.

http://www.ibiblio.org/wm/paint/auth/vinci/
Mostly contains da Vinci's more- famous workings, most notably the Mona Lisa, The Last Supper,
and Virtuvan. After some paintings there's a brief telling of how, when and why da Vinci painted
what he did. Another feature is the story of how he got into painting in the first place. Also contains
many downloads and links to other famous artist of the time. A nice site for learning about the story
behind the paintings.

http://sunsite.dk/cgfa/vinci/
This is a small page containing not well-known paintings and sketches. However what it lacks in
pictures it makes up for in the biography. It is nearly fifteen pages long going into great detail to
tell of his paintings and inventions. The paintings and inventions it does tell about are not well known
but are interesting anyway. Also contains a link for its second site and other artist Great for information
on his unpopular works.

http://library.thinkquest.org/3044
From the vary beginning its not hard to, tell this page was designed by da Vinci enthusiast seeing as
how they have nothing but detailed praise for the man. This is probably the best page. What was
interesting is they had three levels of interest/comprehension levels. The levels arc novice/beginner,
intermediate, and advanced. In each level there are four areas of interest overview, sketches, artwork,
and science. When the level is increased so are the four areas going more in depth and giving more
details. It is easy to view art, study science observations, examine inventions, and check out interesting
facts of da Vinci's life.

http://www.kausal.com/leonardo/index.shtml
This was a very interesting site. Its best feature is a virtual trip the browser is able to take. This trip
goes on a walk through of da Vinci's life standing with his birth in Anchiano to his death in Amboise.
Just in case you don't want to do the whole trip there are direct links to the beginning, middle, and
end of the walk through. This site also contains a family tree, a section on the Mona Ulm, and a
section on his bicycle invention.

http://members.it.tripod.de/massimoLaRocca/leonardo/ing_index
This Site stands out from the others. This site only contains unknown/unpublished facts about
da Vinci's life. The site shows what different people have found in da Vinci's workings such
as hidden pictures and never before seen inventions. It really emphasizes on his self-portrait
and on battles composition. An okay site really only good for finding information not too many
people know about.

http://www.mos.org/sln/leonardo/InventorsWorkshop.html
This was by far the best web, site that showed da Vinci as an inventor. It shows many sketches
of inventions he worked on. The site also has a small biography focusing on his inventive side.
Many links are- given and a few mirror sites. An excellent site for those wanting to learn of
da Vinci the scientist not the painter.

http://www.webgod.net/leonardo/Default.htm
If you have ever wanted to know anything about Leonardo de Vinci, this is the place to look. From architecture to anatomy and invention to allegories, this whole gallery has a variety of pictures drawn from the man himself.

http://208.4.223.8/lecagot/leonardo.html
This page was designed for the da Vinci lover by a da Vinci lover, Le Cagot. Contains an
extremely detailed biography. What set this page apart was it showed unfinished sketches
da Vinci worked on. Also it showed the design of wings for flying he was working on. The
page contains lots of downloads of all, the sketches and designs. A great site if you want to
see all of the inventive sketches da Vinci did over his time.

http://www.mos.org/sln/Leonardo/WhatWhereWhen.html
This was a very neat page. This showed all the cities da Vinci had lived or visited all over Europe.
When a city is clicked it tells what he was doing there and what he did during his stay. Not too
much detail but many links are given to more detailed web sites. This is great when searching
for some quick and interesting facts.

Scientists