See the inner workings of a lock with this entertaining kit - assemble the lock yourself and then watch through the transparent casing as the pins move whilst you turn the key. Ideal for puzzle enthusiasts and budding engineers, as well as anyone who's ever put the wrong key in the door and wondered exactly why it won't work.
Not suitable for children under 14 years of age, unless under full adult supervision.
Contains all the required components to create a working padlock.
Comes boxed - box measures 17.3 x 9.7 x 3.2 cm.
This book is a comprehensive, accessible, illustrated exploration of the fascinating science of colour. Organized by 50 of the most essential questions about color across a variety of fields (physics, chemistry, biology, technology, and psychology) Arielle and Joann Eckstut examine how and why we see colour,...
A special edition of the Haynes Apollo 13 Manual, to coincide with the 50th Anniversary of the Moon mission April 1970 which very nearly ended in catastrophe. The special edition includes an expanded look at what was learned from the investigation, and how these lessons...
Alan Turing designed some of the earliest computers and was pivotal in the cracking of the Enigma code used by the German Navy. Tragically, his accomplishments were never fully recognised during his lifetime due to his homosexuality, then a crime in the UK. In 1952 he...
This fascinating 550-piece puzzle illustrates each and everyone of the elements in the Periodic table. Published by The Royal Society of Chemistry/ Box measures 27.9 x 33 x 5.1 cm