What objects would you include in your own scientific portrait?
Margaret Bryan was a schoolmistress for a boarding school for girls in London, in which she taught mathematics and science. She also published several popular scientific textbooks on astronomy, geography, and natural philosophy.
Against the background of the daily diurnal motion, the outer planets have an additional slow motion called their Zodiacal (or "direct") motion. Stars are fixed in relative position, but planets move slowly from west to east. Learn more about zodiacal motion in this 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:
- Urania's Mirror Learning Leaflet
- Urania's Mirror card set (full page)
- Urania's Mirror card set (half page)
- Constellation Activities
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.
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.
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.
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
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.