Blackdog Media
Classic Reader: Book: The Belgian Twins by Lucy Fitch Perkins
This site features the full text of the children's novel The Belgian Twins by Lucy Fitch Perkins.
Blackdog Media
Classic Reader: Book: The Bobbsey Twins at Meadow Brook by Laura Lee Hope
This site features the full text of the children's novel The Bobbsey Twins at Meadow Brook by Laura Lee Hope.
Blackdog Media
Classic Reader: Book: The Bobbsey Twins at School by Laura Lee Hope
This site features the full text of the children's novel The Bobbsey Twins at School by Laura Lee Hope.
University of Florida
Baldwin Library: The Twins
A scanned copy of the 1897 publication The Twins by L. E. Tiddeman, a book of children's fiction.
Blackdog Media
Classic Reader: Book: The Bobbsey Twins by Laura Lee Hope
This site features the full text of the children's novel The Bobbsey Twins by Laura Lee Hope.
Other
Uc Riverside: Twin Paradox
To make sense of this, you have to first see the Twin Paradox: Introduction, which is the special relativity version and is linked to this page. This general relativity explanation views the paradox from a gravitational point of view.
Blackdog Media
Classic Reader: The Bobbsey Twins on a Houseboat by Laura Lee Hope
This is the complete text of the children's novel "The Bobbsey Twins on a Houseboat" by Laura Lee Hope.
Children's Books Online
Children's Books Online: The Peter Pan Twins Are Glad to Help
"The Peter-Pan Twins are Glad to Help", written in 1928 by Betty Kessler Lyman, has been digitized and made available by the Rosetta Project. This 9 page book is appropriate for early readers.
Children's Books Online
Children's Books Online: Playtime for the Peter Pan Twins
"Playtime for the Peter-Pan Twins", written in 1928 by Betty Kessler Lyman, has been digitized and made available by the Rosetta Project. This 9 page book is appropriate for early readers.
Children's Books Online
Children's Books Online: The Peter Pan Twins Are Now in School
"The Peter-Pan Twins are Now in School", written in 1928 by Rhoda Chase, has been digitized and made available by the Rosetta Project. This 9 page book is appropriate for early readers.
Children's Books Online
Children's Books Online: The Toddles Twins
"The Toddles Twins", published in 1927 by McLoughlin Brothers Inc. , has been digitized and made available by the Rosetta Project. This 10 page book is appropriate for pre-readers.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Twin Paradox Program
This model permits manipulation of variables in order to observe the effects of time dilation on twin objects, one moving and one not, as shown in a spacetime diagram.
Khan Academy
Khan Academy: How Similar Are the Personalities of Twins?
Practice for the MCAT with these questions based on the given table showing the results of a report related to personality.
California Institute of Technology
Spitzer Space Telescope: Our Galaxy's 'Twin'
This image, titled "Morphology of Our Galaxy's 'Twin'" features three individual pictures of a nearby spiral galaxy that closely resembles our own. The text under the image details various specifics about the picture.
Scholastic
Scholastic: Discussion Guide: Never Mind! A Twin Novel
Scholastic presents this discussion guide of "Never Mind! A Twin Novel" by Rachel Vail. The guide includes discussion questions, extension activities, and more.
Other
Institute for Economic Analysis: Twin Deficit Perspective on the Federal Budget
Part II of document proposes an alternative to controlling the deficit.
Blackdog Media
Classic Reader: The Bobbsey Twins at Snow Lodge by Laura Lee Hope
Read the full text of "The Bobbsey Twins at Snow Lodge" as the twins try to solve the mystery of missing money. Written by Laura Lee Hope, which was more than likely a pen name.
Blackdog Media
Classic Reader: The Bobbsey Twins at the Seashore by Laure Lee Hope
Join the Bobbsey twins as they search for a missing sailor in "The Bobbsey Twins at the Seashore" written by Laura Lee Hope, which is more than likely a pseudonym.
Blackdog Media
Classic Reader: The Bobbsey Twins in a Great City by Laura Lee Hope
Follow the Bobbsey twins solve another mystery in "The Bobbsey Twins in a Great City" by Laura Lee Hope, which is more than likely a pseudonym.
Blackdog Media
Classic Reader: The Bobbsey Twins in the Country by Laura Lee Hope
Follow the Bobbsey twins as they solve another mystery in "The Bobbsey Twins in the Country" by Laura Lee Hope, which is more than likely a pseudonym.
Blackdog Media
Classic Reader: The Bobbsey Twins in the Great West by Laura Lee Hope
Follow the Bobbsey twins as they solve another mystery in "The Bobbsey Twins in the Country" by Laura Lee Hope, which is more than likely a pseudonym.
Blackdog Media
Classic Reader: The Bobbsey Twins in Washington by Laura Lee Hope
Follow the Bobbsey twins as they solve another mystery in "The Bobbsey Twins in the Country" by Laura Lee Hope, which is more than likely a pseudonym.
Blackdog Media
Classic Reader: The Eskimo Twins by Lucy Fitch Perkins
The full text of the novel The Eskimo Twins by Lucy Fitch Perkins. Register for a free account to unlock annotation tools, printing, and more.