Jenkins bear (147 resultados)

Condición: Very Good. This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisf…

Condición: Very Good. This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisf…

Condición: Very Good. This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisf…

Paperback. Condición: Very Good. Sundials and Timedials: A Collection of Working Models to Cut Out and Glue Together This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has cle…

Paperback. Condición: New. This beautiful model to cut out and glue together is the result of arranging five interpenetrating cubes in a highly symmetrical way Each cube is printed in its own colour and so it is easy to see that exactly two cubes meet at every vertex and that there are twelve surfaces defining each face of each…

Mixed Media Product. Condición: New. One advantage in making a cardboard globe yourself is that somehow the information on it becomes more familiar and more accessible. All countries are shown in full color and there are about 1200 major cities, seas, rivers and other geographical features. There is a 24 page minibook called "Do…

Paperback. Condición: New. This beautiful model to cut out and glue together has twelve sharp spikes emerging from pentagonal cups and forming ten pairs of parallel planes, each in a different colour.None of these ten colours occurs more than once on any spike or cup.When completed, the polyhedron rests on a horizontal surface o…

Paperback. Condición: New. This beautiful model to cut out and glue together is the result of arranging five interpenetrating cubes in a highly symmetrical way Each cube is printed in its own colour and so it is easy to see that exactly two cubes meet at every vertex and that there are twelve surfaces defining each face of each…

Paperback. Condición: New. This beautiful model to cut out and glue together has twelve sharp spikes emerging from pentagonal cups and forming ten pairs of parallel planes, each in a different colour.None of these ten colours occurs more than once on any spike or cup.When completed, the polyhedron rests on a horizontal surface o…

Mixed Media Product. Condición: New. The Star Globe shows the whole celestial sphere and it is an ingenious three-dimensional star chart which works at any lattitude for any time and date. The Star Globe itself rests in a simple cradle which shows the horizon. This means that you know which way to look and identify the stars, co…

Paperback. Condición: New. Make this collection of seven ingenious paper gadgets which introduce and explain many of the concepts used in cipher machines. Decode the secret messages and then start to understand how cryptographers try to protect information from prying eyes. See also how cryptoanalysts set about breaking such cod…