Bøger af Jim R Larsen

This book will guide you step-by-step through the process of building three low temperature differential (LTD) Stirling Engines for less than $30 each. Two of them are efficient enough to run from the heat of your hand. And all three of them can be built using common hand tools with material available at your local hardware store and hobby shop.The hot air engine (aka: "Stirling engine") has been around for a very long time. Interest in the technology has been revived in recent years by those exploring new methods for producing "Green Energy." An LTD Stirling engine is efficient enough to run from the waste heat that is discharged from other appliances or from the warmth of direct sunlight. The most efficient of these will run from the heat of your hand.Until now, if you wanted to build your own heat of the hand Stirling Engine you had to either spend several hundred dollars for an expensive kit or you needed access to a precision machine shop. This book breaks both those barriers for you. Now you can build your own working models that will run from the heat of your hand, without the aid of a machine shop.Whether you are a student looking for a winning science fair project, or just a home hobbyist looking for a fun project, you will find this book to be a helpful guide in creating your own LTD Stirling engines. You will find detailed instructions, tips on finding parts, and over 130 illustrations to help you recreate Jim Larsen's original designs for these highly efficient small models.

Here is everything you need to know to build your own low temperature differential (LTD) Stirling engines without a machine shop. These efficient hot air engines will run while sitting on a cup of hot water, and can be fine-tuned to run from the heat of a warm hand. Four engine projects are included. Each project includes a parts list, detailed drawings, and illustrated step-by-step assembly instructions. The parts and materials needed for these projects are easily obtained from local hardware stores and model shops, or ordered online.Jim Larsen

101 Fun Things To Do With a GoPro(R) Camera will inspire your creativity and spark your imagination. The GoPro(R) camera is the biggest innovation in photography since the advent of digital cameras. The possibilities of what can be done with a GoPro(R) camera are almost limitless. The GoPro(R) camera has been used in the depths of the ocean, on the International Space Station, and everywhere in between. Let us help you come up with some new and exciting ideas about how you can have fun with your GoPro(R) camera.

Use a pen. Use a pencil. Use your heart. Fill this journal with positive thoughts about the one you love, and then share it with them. This can be a book that you write in a moment of inspiration, or it can be the project of a lifetime. Share your heart with the one you love. This journal has over 150 pages suitable for writing or drawing. It is a high quality "Perfect Binding" paperback book. Your partner will cherish this treasure for a lifetime. This book can be used as a personal journal, or as a communication tool for couples. Your partner will enjoy reading your words of love and affection over and over again. You will enjoy picking up the book in the future and recording your thoughts and feelings when major life events happen. Years from now you can both look back and read the record of your love for each other as it has carried you through the passages of life together.

"Count Your Blessings" will strengthen your faith and bring you encouragement. Use this journal to take note of the many wonderful blessings God has provided. Look back at it often to be reminded of his great love and watchful care. Find strength in times of adversity and build your own testimony by keeping a journal of God's blessings. More than 150 pages are provided with ample space for writing or sketching. This Perfect Binding paperback fits easily on a bookshelf or desk, or slips neatly into a backpack or purse. This is not a study guide or a guided journal. The pages are waiting to be filled with your thoughts and prayers as you use this journal to record the wonderful blessings God has provided.

Do you know how to make a working engine from soda cans? You do now! The Quick and Easy Stirling Engine book will show you every detail you need to know. There are no difficult secrets and no expensive parts to buy. With two soda cans and a few other materials you can build a running engine in just a few hours.The engine featured in this book was designed for use in educational settings. Consulting with several educators, this engine was designed so that it could be assembled with simple hand tools by most builders in about three hours. The parts list is simple and affordable. Simple hand tools are all that is required for assembling this engine.Once assembled, the engine will spin a flywheel when the bottom is heated and ice is placed on top. This is a hot air engine design, sometimes referred to as a Stirling Engine. The engine makes motion by exercising a temperature differential. The bottom half of the engine must be warmed to about 250 degrees F, and the top of the engine must be cooled with cold water or ice. When these conditions are present, the engine will spin between 100 and 200 rpm.The primary components of this engine are soda cans, copper wire, and an old CD. The adhesive that is used for construction is readily available at hardware stores. This engine is a fun project for students, home builders, hobbyists, and anyone who wants to learn how to make their own hot air engine from soda cans.