Learning Leaflet

Urania's Mirror: Constellation Cards

Urania's Mirror Learning Leaflet

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure.

OERs in this set:  


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Hildegard of Bingen: An Abbess for Health Care

Hildegard of Bingen Learning Leaflet

Why did people come to Hildegard’s convent? 

Hildegard of Bingen, Abbess of convents at Rupertsberg and Elbingen in the 12th century, explained their herbal remedies and medical procedures in her book Physica. In addition to this work on medicine, Hildegard wrote other works on cosmology and theology, corresponded in nearly 400 letters with abbots, popes and emperors, and created at least 70 musical compositions. This OER explores the significance of Hildegard of Bingen.


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Maria Cunitz: Kepler's Defender

Maria Cunitz Learning Leaflet

How important in science is usability? 

Prior to Newton, perhaps half a dozen astronomers accepted Kepler s three laws. Galileo was typical in ignoring Kepler s accomplishments. Yet this beautiful book is an exception. Maria Cunitz was not only one of the first astronomers to adopt Johann Kepler's astronomy, but because of the usability of her tables, she made the accuracy of Kepler's laws easy to grasp. 


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Johannes Kepler: Harmony of the Universe

Image of Kepler's Harmonic Law

In the work, Harmony of the Universe, Kepler integrated theoretical astronomy and music, ,showing that the motions of the planets employ the same numerical ratios as the most harmonious scales. Kepler's "harmonic law" still describes how planets and stars and satellites and galaxies revolve around one another in space.

Learn more about Kepler's "harmonic law" and its modern realizations in this learning leaflet.

Related OERs:


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The Anatomy of a Book

Book Anatomy Learning Leaflet

In order to understand the history of a book, it is important to understand the structure and organization of a book - it's anatomy. This learning leaflet explains the basic parts of a book through some simple exercises.

Included in this learning leaflet are three parts:

(1) Introduction - DOWNLOAD

(2) Activity - DOWNLOAD

(3) Handout version 1 - DOWNLOAD 
      Handout version 2, with sample text - DOWNLOAD


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Ada Lovelace: First Computer Programmer

Ada Lovelace Learning Leaflet

What is the difference between a calculating machine and a computer? 

In notes appended to Ada Lovelace's translation of one of the first introductions to Charles Babbage's "Analytical Engine," she included an in-depth analysis of the significance and potential of Babbage's machine design. These dense notes, much longer than the text she translated, explained how Babbage's machine had the potential of becoming a programmable computer, instead of merely a calculator.


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Six Cosmological Systems: Phases of Venus

Kircher-Cosmological Systems-Venus

It is often thought that Galileo's discovery of the phases of venus demonstrated the contested heliocentric model of the universe. However, such an understanding is overly simplistic of the early modern account of astronomy. Use this learning leaflet to learn more.


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Maria Merian: World-Traveling Entomologist

Maria Merian Learning Leaflet

How do art and travel benefit natural history? 

Maria Merian (1647-1717), skilled in both art and natural history, studied the relationships between flowers and insects. She conducted field expeditions around the world, carried out research in gardens and museums, and produced detailed sketches and beautiful paintings, and even bred insects to aid in her entomological investigations. 


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Books as Instruments

Regiomontanus,  Calendarium (1476), volvelle

In this remarkable book, Regiomontanus predicted the positions of the Sun and Moon for 40 years. He designed a sundial to work independently of one︎'s latitude, and a volvelle, or circular dial, to locate the position and phase of the Moon according to date and time. Books became observing instruments in their own right.

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