The Stellarota is a 19th century tool used for finding the placement of the stars, sun, and planets on any given day. The Stellarota portrays the sky, with all the constellations and planets visible in the northern hemisphere. The wire circle on top of the picture is used as a "wire Horizon" which one aligns with the picture of the sky. The picture can be turned in the frame using a knob on the back of the device. This particular Stellarota was projected and drawn in 1828 by C.M. Doolittle and S.B Munson, with the engraving done by N & S. S. Jocelyn. The device was made for A. Goodyear & Sons. The Stellarota was invented by Reverend Amos Pettengill.
10 Museum Exhibitions You’ll Be Talking About This Winter
Printable: post positions, silks, odds for 2017 Kentucky Derby
Click here or on the image below to download a printable PDF of the 2017 Kentucky Derby field and post positions.
Mass Die-Off of Puffins Raises More Fears About Arctic's Warming Climate
The story of the seabirds’ deaths likely starts at the bottom of the food chain, where warming water and climate change are changing the menu.
On Surplus, Part 3: How Surplus (Wealth) is Created
The foundational industrial and productive, surplus-creating, part of the economy still exists—only now it is mainly out of sight.
What is the Satanic Temple? A far cry from SF's Church of Satan
When you hear about Satanists in news headlines today, they're likely not referring to those followers of Anton LaVey's particular occultist school of thought, centered in San Francisco. Today, another group is utilizing themes that some Satanists stand for - individualism, free speech, and humanism - without actually believing in Satan.
Three new restaurants, gym coming to Chapin
Construction has begun on a new shopping center on Ellett Rd.
Getting New Faces into the Conservation Field
Shawneece Hennighan came to The Nature Conservancy as an intern a decade ago. Now she’s trying to bring a new—and more diverse—generation to conservation as TNC’s youth and college programs administrator.
How Old and New World Vultures Differ
Old World and New World Vultures are not closely related. Learn some of the ways they differ, with photos and sound bites.
Spring Arts Preview: Top visual art picks
Chalk it up to economic optimism, desire for change, or residual energy from the Balboa Park Centennial. This spring features big shows that fill entire buildings and present fresh acquisitions. It’s like everybody got a new hat.