Exploring Scientific Ideas & Logical Thinking
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Exploring Scientific Ideas & Logical Thinking
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The Chemical Helix Start with the enjoyable task of making this ingenious and colourful tower model which shows all the elements which have so far been discovered. They spiral downwards according to their electronic structures, hence, the name chemical helix. The tower has eight sides and so, those elements which come above and below each other on the tower share chemical properties, just as they do in the conventional periodic table. Included is an extensive minibook packed with ideas and explanations about the elements. £4.95 |
The Curious Quantum Who would have thought that paper models could illustrate some fundamental truths about the universe! Yet Lee Bulbrook has succeeded in using a certain geometrical shape which represents the fundamental structure of real atoms rather well. Because of this, they glue together logically to make model molecules which closely represent the shapes and properties of real molecules. This combination of words, pictures and models opens the door to a better understanding of this fascinating subject. | Just as it is hard to describe a spiral staircase without using your hands, so it is difficult to understand the double helix without a three-dimensional model. This one is easy to glue together and makes a fine mobile. There are also other models which shed light on nucleotides, viruses and protein synthesis. Included also is a minibook which links together the models with lots of interesting information about the role that DNA plays in genetics and in the evolution of life on our planet into all the marvellous diversity we can see today. £4.95 | ||||
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That all the tens of millions of different substances and materials on earth were made up of only 92 elements is a magical story that is too easily taken for granted. This is an updated reprint of a charming book published more than fifty years ago. It vividly brings to life the excitement of the discoveries and sets each into the thinking of its time. The final chapter brings the story right up to date and includes the man-made elements of the nuclear age and the latest insights into the periodic table and the nature of matter. £6.95 |
Who Tells the Truth? All the characters in these puzzles make clear statements about themselves and others, but it is not clear whether or not they are telling the truth. Anyone could be lying. As always, a good logical puzzle is one which it is possible to unravel by thinking logically. The problem is to decide which person to believe. Altogether there are 85 original puzzles in this book ranging in standard from fairly easy to quite demanding. There are also some curious paradoxical pictures which raise questions which are rather hard either to answer or to ignore. £3.99 | ||||||||||||||
This book includes 34 coloured card dice to cut out and make. All are legal dice but they differ from each other in rather subtle ways. The primary puzzle is to identify which dice are identical and which are not. It is the logical thinking required to solve these puzzles which draws attention to the nature of the symmetries of three dimensional objects. Also included is an extensive minibook which deals with the fascinating consequences of differing symmetries in biological molecules. £4.95 (inc. VAT) | |||||||||||||||
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Match the Views This intriguing collection of puzzles all start from the same simple idea, that of cutting and folding a square of paper marked with 25 smaller squares. You have to imagine the resulting shape in three-dimensions after making the given set of cuts and folds. Then to match it with one of nine given views. The paper is coloured differently on both sides and this provides further useful clues to help with visualising the possible solutions. £3.95 | Each of the diagrams in this extensive collection poses an ingenious geometrical puzzle which has to be solved simply by looking, thinking and imagining. For instance, what would you see if you look further into that hollow cube? There is also a novel way to check if your solution or your ideas about the puzzle are correct. By making a model or a simple cut-out from the back of the book, you will be able to place it on the page and convince yourself or others that you are right! A most intriguing collection of puzzling notions. £3.95 | |||
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