Most of the devices can be built using common household products or components available at hardware or electronic stores, and each experiment contains illustrated step-by-step instructions with photographs and diagrams that make construction easy.
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No workbench warrior, science teacher, or grown-up geek should be without this idea-filled resource. Passar bra ihop.
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Gonzo Gismos Simon Quellen Field. Simon Quellen Field. How much do you really know about how the human body works and how it reacts to food, exercise, nutrition, and the environment?
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While most people have read about at least one fad diet, they're left wondering about the greater biochemistry, psychology,…. It was a crude mixture at first, but over time chemists discovered the optimum proportion of sulfur, charcoal, and…. Out of stock online Not available in stores.
Author and educator Simon Quellen Field has developed a primer for creative…. Why Is Milk White?
A dozen unique…. A Selection of the Scientific American Book Club Explaining why antifreeze is a component of toothpaste and how salt works in shampoo, this fascinating handbook delves into the chemistry of everyday household products. Decoding more than cryptic ingredients,…. This fresh collection of more than 20 science projects—from hydrogen fuel cells to computer-controlled radio transmitters—is perfect for the tireless tinkerer. Innovative activities include taking detailed plant cell photographs through a microscope….
Some simple demonstration experiments involving homopolar motors
Ships within weeks Not available in stores. Step-by-step instructions to building more than 30 fascinating devices are included in this book for workbench warriors and grown-up geeks. Detailed illustrations and diagrams explain how to construct a simple radio with a soldering iron, a few basic circuits,…. Kobo ebook. Available for download Not available in stores. Exploring the scientific principles behind everyday recipes, this informative blend of lab book and cookbook reveals that cooks are actually chemists.
Following or modifying recipes is shown to be an experiment with acids and bases, emulsions and suspensions,…. Black powder, the world's first chemical explosive, was originally developed in the seventh century, during China's Tang dynasty. It was a crude mixture at first, but over time chemists discovered the optimum proportion of sulfur, charcoal, and nitrates, as well…. Four of the electrons in that electrode combine with four water molecules H2O. At the other electrode, the positive side of the battery pulls electrons from the water molecules.
The water molecules split into positively charged hydrogen atoms single protons , and oxygen molecules. The oxygen molecules bubble up, and the protons migrate away from the positively charged electrode. When you remove the battery, the hydrogen molecules clinging as bubbles to the electrode break up due to the catalytic action of the platinum, forming positively charged hydrogen ions H, or protons and electrons.
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At the other electrode, the oxygen molecules stuck in bubbles on the platinum surface draw electrons from the metal, and then combine with the hydrogen ions in the water from the reaction at the other electrode to form water. The oxygen electrode has lost two electrons to each oxygen molecule. The hydrogen electrode has gained two electrons from each hydrogen molecule. The electrons at the hydrogen electrode are attracted to the positively charged oxygen electrode. Electrons travel more easily in metal than in water, so the current flows in the wire instead of the water.
Gonzo Gizmos: Projects & Devices to Channel Your Inner Geek
In the wire, the current can do work, such as illuminating a light bulb or moving a volt meter. Suppose you had a metal alloy that had the advantages of liquid mercury, but without the toxic effects? You could make your own barometers and thermometers without having to worry about calling in a hazardous-materials team to clean up any accidents—you could simply wipe up the mess with a paper towel. This action might not be possible to undo. Are you sure you want to continue? Upload Sign In Join. Home Books Science. Save For Later. Create a List. Summary This fresh collection of more than 20 science projects from hydrogen fuel cells to computer-controlled radio transmitters is perfect for the tireless tinkerer.
Read on the Scribd mobile app Download the free Scribd mobile app to read anytime, anywhere. Your fuel cell is now complete. The Fuel Cell When you remove the battery, the hydrogen molecules clinging as bubbles to the electrode break up due to the catalytic action of the platinum, forming positively charged hydrogen ions H, or protons and electrons. Mirrors and Liquid Metal Alloys Suppose you had a metal alloy that had the advantages of liquid mercury, but without the toxic effects?