Culling common household items to create an uncommon arsenal of miniature gadgets and side arms, this guidebook provides do-it-yourself spy enthusiasts with 35 different surveillance tools and weapons. From a mini-catapult in a breath-mint tin to milk-jug cap blow-dart wristwatches, this handbook details how to achieve clandestine ends practically and inexpensively. In addition to creating weapons such as periscopes, bionic ears, and grappling hooks,...

Este libro tiene como objetivo la divulgación científica de forma comprensible para cualquier persona, independientemente de su formación previa. Está especialmente pensado para niños y jóvenes de edades comprendidas entre los 10 y 16 años y recoge un amplio espectro de temas de interés, como son la Tierra, el cuerpo humano, la biología, la física y química, la tecnología o las matemáticas. Javier Fernández Panadero es licenciado en...

In this revised and expanded edition, William Gurstelle shows ordinary folks how to build a dozen fun and impressively powerful launchers with inexpensive household and hardware store materials. This new edition includes three new projects along with diagrams, photographs, and fascinating science information. With a strong emphasis on safety, the book also gives tips on troubleshooting and describes each machine's historical origins as well as the...

Dans ce livre, dix expériences qui ont conduit à un changement radical des théories physiques et scientifiques, à partir de ce qui s'est passé à la fin du XIXe siècle et se terminant à la fin du XXe siècle, sont décrites en détail. Ces expériences sont décrites d'abord en se concentrant sur le problème qui a motivé le test de cet appareillage très expérimental, puis en décrivant la solution trouvée, et enfin en exposant les conséquences...

Perfect for the do-it-yourselfer, this handy guide to household electronics gives the weekend workbench enthusiast a multitude of ideas on how to salvage valuable parts from old electronics and turn them into useful gadgets once more. This handbook is loaded with information and helpful tips for disassembling old and broken electronics. Each of the more than 50 deconstruction projects includes a treasures cache of the components to be found, a required...

Author and toy designer John Austin provides detailed, step-by-step instructions with diagrams to show stealth warriors how to build 37 different ninja weapons for the modern era. Each of the projects in Mini Weapons of Mass Destruction 4 are built from common household and office items plastic utensils, markers, clothespins, paper clips, wire hangers, and discarded packaging all clearly detailed on materials lists. Builders are offered a variety...

En este libro se exponen con gran detalle diez experimentos que supusieron un cambio radical en las teorías físicas y científicas, partiendo de lo ocurrido a finales del siglo XIX y finalizando a finales del siglo XX.Estos experimentos se describen primero centrándose en el problema que provocó la prueba de ese mismo aparato experimental, luego describiendo la solución encontrada y finalmente exponiendo las consecuencias.

Written for reasonable risk takers and suburban dads who want to add more excitement to their lives, this daring combination of science, history, and DIY projects explains why danger is good for you and details the art of living dangerously. All of the projectsfrom throwing knives, drinking absinthe, and eating fugu to cracking a bull whip, learning baritsu, and building a flamethrowerhave short learning curves; are human-focused, as opposed to technology-centric;...

In "Is the Matrix in the Real World and How It Affects It," we embark on a mind-bending journey that challenges our perception of the world. Inspired by the iconic Matrix franchise, this eBook delves into the tantalizing question: Could we be living in a real-world Matrix, and if so, how does it affect us?Through 50 captivating chapters, we traverse the realms of philosophy, science, and technology to dissect the nature of reality itself. We unearth...

Combining science, history, and DIY pyrotechnics, this book for the workbench warrior explains humankinds most useful and paradoxical tool: fire. William Gurstelle, author of the bestselling Backyard Ballistics, presents 25 projects with instructions, diagrams, photos, and links to video demonstrations that enable people of all ages to explore and safely play with fire. From Franklins stove to Diesels engine, explosive and fascinating tales are told...