Topic: Sciences & Technology

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Dolland Telescope

Jefferson owned three telescopes, including this one. Science was a common hobby for educated men of Jefferson’s era and astronomy was especially popular. Key discoveries by astronomers launched...
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Hand Telescope

This hand telescope, which was made in England, probably belonged to Thomas Jefferson. A family story holds that Governor Jefferson—who had escaped from Richmond to Monticello—used this telescope...
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Jefferson to Roger Weightman

In this letter, Jefferson declined an invitation to Washington, D.C.’s celebration of the fiftieth anniversary of American independence. From his deathbed, he reiterated his lifelong belief in human...
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Jefferson to Roger Weightman (Audio)

In this audio clip, Monticello’s Chad Wollerton introduces a dramatic reading of a letter Jefferson wrote to Roger Weightman, the mayor of Washington, DC. In the letter, Jefferson...
Lesson Plan

Jefferson’s Cipher to Lewis & Clark, Was It Necessary?

In this lesson, students will study the journals of Lewis and Clark and analyze the journals, specifically looking at information in the journal entries that describe hardships faced...
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John Morgan

This portrait is a pre-revolutionary image of John Morgan, a physician from Philadelphia. Like many physicians of his day, Morgan received his medical training in Scotland. In 1765,...
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Liberty Displaying the Arts and Sciences

This 1792 painting by Samuel Jennings was the first by an American artist to address the issue of slavery. Broken chains lay at the feet of Liberty, represented...
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Money Scales with Case

This money scale was used to weigh precious metals to determine their value. Gold and silver coins were weighed to ensure that they had not been cut or...
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Synopsis of the Universe

This is an 18th-century depiction of the solar system. During the Enlightenment, thinkers believed that governments as well as the natural world behaved according to predictable laws of...
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Type Improved Compound Microscope

Thomas Jefferson purchased a microscope in Europe in 1786. Seventeenth-century scientists used the earliest microscopes to study biology. By the eighteenth century, these instruments were also available to...