Estes fred (81 risultati)

paperback. Condizione: Fair.

Condizione: very_good. Fast Free Shipping â" Very Good condition book with a firm cover and clean pages. Shows normal use and some light wear or limited notes markings. A solid, nice copy to enjoy.

paperback. Condizione: Good.

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

Paperback. Condizione: 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. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Very Good. No Jacket. Former library book; May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Condizione: acceptable. Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included.

Condizione: good. May show signs of wear, highlighting, writing, and previous use. This item may be a former library book with typical markings. No guarantee on products that contain supplements Your satisfaction is 100% guaranteed. Twenty-five year bookseller with shipments to over fifty million happy customers.…

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. A water purification system made of concrete and the same chemicals that block ultraviolet light in sunscreen. A robot made of PVC pipe that beat a shiny, eleven-thousand-dollar competitor in a robotics contest. An electricity-producing windmill built by a teen who taught himself physics by candlelight. Teen Innovators: Nine Young People Engineering a Better World with Creative Inventions reveals how people of any age or experience level can create something that changes others' lives through nothing more than hard work, creativity, and inspiration. (Oh, and perhaps a bit of electrical wire, some plastic piping, and a couple tampons.) Utilizing the principles of design thinking, these inventors all tinkered, experimented, and failed--repeatedly--until their inventions worked. The windmill produced light. The water became safe to drink. Jack Andraka: improved pancreatic cancer test Gitanjali Rao: device to detect lead in drinking water William Kamkwamba: improvised electrical generator using windmill in Malawi Austen Veseliza: digital display glove to aid people with speech impairment Deepika Kurup: easier, cheaper method to remove toxins from drinking water Cristian Arcega, Lorenzo Santillan, Oscar Vasquez, Luis Aranda: underwater robot Each of these stories offers inspiration to the next generation of teen innovators. You don't need a genius-level IQ or the latest and greatest technologies to create something that makes a difference. All you need is an idea and the determination to make it real.…

Condizione: Good. ATTN: EX-LIBRARY COPY>>> Former Library book. paperback 100% of proceeds go to charity! Good condition with all pages in tact. Item shows signs of use and may have cosmetic defects.

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Hardback. Condizione: Very Good. A water purification system made of concrete and the same chemicals that block ultraviolet light in sunscreen. A robot made of PVC pipe that beat a shiny, eleven-thousand-dollar competitor in a robotics contest. An electricity-producing windmill built by a teen who taught himself physics by candlelight. Teen Innovators: Nine Young People Engineering a Better World with Creative Inventions reveals how people of any age or experience level can create something that changes others' lives through nothing more than hard work, creativity, and inspiration. (Oh, and perhaps a bit of electrical wire, some plastic piping, and a couple tampons.) Utilizing the principles of design thinking, these inventors all tinkered, experimented, and failed--repeatedly--until their inventions worked. The windmill produced light. The water became safe to drink. Jack Andraka: improved pancreatic cancer test Gitanjali Rao: device to detect lead in drinking water William Kamkwamba: improvised electrical generator using windmill in Malawi Austen Veseliza: digital display glove to aid people with speech impairment Deepika Kurup: easier, cheaper method to remove toxins from drinking water Cristian Arcega, Lorenzo Santillan, Oscar Vasquez, Luis Aranda: underwater robot Each of these stories offers inspiration to the next generation of teen innovators. You don't need a genius-level IQ or the latest and greatest technologies to create something that makes a difference. All you need is an idea and the determination to make it real.…

paperback. Condizione: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Paperback. Condizione: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Condizione: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

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

Paperback. Condizione: Very Good. Revised ed. 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. Condizione: Very Good. Revised ed. 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.

Condizione: Very Good. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.