Relativity Theory (Over 8,500 results)

Hardback. Condition: Good. With his general theory of relativity, Albert Einstein is the symbol of genius. Being honored with the Nobel Prize in physics made him famous and firmed-up his reputation as a genius. Though Albert Einstein is remembered mostly as being a scientist, he was also concerned with helping people. During World War II, he assisted many Jews fleeing the Nazis. After the war, the people of Israel asked him to be their president. Einstein declined; he still had unanswered scientific questions to solve. Today, scientists are still hard at work trying to solve some of Einstein's questions.…

Paperback. Condition: Very Good.

board_book. Condition: Very Good.

board_book. Condition: Very Good.

board_book. Condition: Very Good.

board_book. Condition: Fair.

Condition: like_new. Book is in like new condition with only potential shelf wear. No marking or highlighting.

Condition: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condition: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condition: good. Books may contain some notes and highlighting. Supplements such as Access Codes, Cd's Dust Jackets, etc. are not guaranteed with used book purchases.

Condition: very_good. Cover may have light wear, pages in very good condition and binding is sturdy; may have other light shelf wear or creases. May have notes or highlighting.

Condition: Very Good. Former library copy. Shows minimal signs of wear and previous use. Can include minimal notes/highlighting. A portion of your purchase benefits nonprofits! - Note: Edition & format may differ from what is shown in stock photo & item details. May not include supplementary material (toys, access code, dvds, etc).…

Paperback. Condition: Like New. He believes in science, but only magic can help his mom. Twelve-year-old Finn is used to people in his family disappearing. His twin sister, Faith, drowned when they were three years old. A few months ago, his mom abandoned him and his dad with no explanation. Finn clings to the concrete facts in his physics books--and to his best friend, Gabi--to ward off his sadness. But then his grandmother tells him a secret: the women in their family are Travelers, able to move back and forth in time. Finn's mom is trapped somewhere in the timeline, and she's left Finn a portal to find her. But to succeed, he'll have to put his trust in something bigger than logic. "This is an incredible book, no matter which time universe you're in. I couldn't put it down. One of my favorite debut novels of the year." --Erin Entrada Kelly, New York Times bestselling author and 2018 Newbery Medal winner.…

Paperback. Condition: Good. He believes in science, but only magic can help his mom. Twelve-year-old Finn is used to people in his family disappearing. His twin sister, Faith, drowned when they were three years old. A few months ago, his mom abandoned him and his dad with no explanation. Finn clings to the concrete facts in his physics books--and to his best friend, Gabi--to ward off his sadness. But then his grandmother tells him a secret: the women in their family are Travelers, able to move back and forth in time. Finn's mom is trapped somewhere in the timeline, and she's left Finn a portal to find her. But to succeed, he'll have to put his trust in something bigger than logic. "This is an incredible book, no matter which time universe you're in. I couldn't put it down. One of my favorite debut novels of the year." --Erin Entrada Kelly, New York Times bestselling author and 2018 Newbery Medal winner.…

Paperback. Condition: Very Good. He believes in science, but only magic can help his mom. Twelve-year-old Finn is used to people in his family disappearing. His twin sister, Faith, drowned when they were three years old. A few months ago, his mom abandoned him and his dad with no explanation. Finn clings to the concrete facts in his physics books--and to his best friend, Gabi--to ward off his sadness. But then his grandmother tells him a secret: the women in their family are Travelers, able to move back and forth in time. Finn's mom is trapped somewhere in the timeline, and she's left Finn a portal to find her. But to succeed, he'll have to put his trust in something bigger than logic. "This is an incredible book, no matter which time universe you're in. I couldn't put it down. One of my favorite debut novels of the year." --Erin Entrada Kelly, New York Times bestselling author and 2018 Newbery Medal winner.…

paperback. Condition: Good. Ex Libris copy. May have library stickers and plastic covering. Good Clean copy. Minimal signs of wear.

Condition: good. Book is in good condition and may include underlining highlighting and minimal wear. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: like_new.

Condition: like_new.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: good. Book is in good condition and may include underlining highlighting and minimal wear. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: good. Book is in good condition and may include underlining highlighting and minimal wear. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condition: Very Good. Former library copy. Shows minimal signs of wear and previous use. Can include notes/highlighting. A portion of your purchase benefits nonprofits! - Note: Edition & format may differ from what is shown in stock photo & item details. May not include supplementary material such as toys, access code, dvds, etc.…

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

hardcover. Condition: Fair.

Condition: acceptable. This copy has clearly been enjoyedâ"expect noticeable shelf wear and some minor creases to the cover. Binding is strong, and all pages are legible. May contain previous library markings or stamps.

Paperback. Condition: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Paperback. Condition: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.