You can read about the various types of power stations in How Hydropower Plants Work, How Wind Power Works and How Nuclear Power Works. Just keep in mind that they all work on the same basic principle of converting mechanical energy -- spinning turbine -- into electrical energy. Of course,...
Professional rammed earth builders use machines that are hooked up to air compressors. The air pressure does the work of tamping down the earth. When you first start ramming dirt, it makes a dull sound, but when it's adequately tamped, it will change to a ringing sound. Once the earth i...
Why do we use high voltages? How does a transformer work? Step-down transformers Step-up transformers Transformers in your home Transformers in practice What are solid-state transformers? Find out moreWhy do we use high voltages?Your first question is probably this: if our homes and offices ar...
The sun will do a lot of the most cost-heavy work for you by providing a free grow light. Of course, when you’re growing outside, it’s not always possible to control the environment perfectly. If it’s dry, you need to water your plants more. If it’s too rainy, you need to...
And how much space does it take to hold 1.3 million Earths? And while we’re at it: How does the sun emit energy? Did the sun kick-start life on Earth (and the rest of our solar system)? Does the sun rotate? Why does the sun send out solar flares? Will the burn out? (And ...
Avoid shortcuts like copying others—what works for them might not work for you. Quick success is rare, and the challenges can be overwhelming without proper preparation. By planning carefully and staying flexible, you’ll set yourself up for lasting success and build a business that stands out...
sweat and chemicals can cause PTFE membranes to lose their ability to keep out water, the membrane is protected by an ultra-thin layer of Polyurethane (GORE-TEX membranes have a bi-component laminate structure) or other oleophobic (oil-hating) treatment (eVent™ does this at the microscopic...
You muster up the confidence to pursue your idea—only to wind up wondering “Where do I begin?” To make your life easier, we’ve put together this guide with step-by-step instructions on how tobuild an online store. Whether you’restarting a businessfrom scratch or taking your brick-an...
How does the frost-free function affect the energy consumption of a refrigerator? The frost-free function increases energy consumption due to the periodic activation of the heating coils to defrost the freezer, but it offers the convenience of not having to manually defrost the freezer. Is manual...
Where does the electricity we use come from? It would be great if it all came from renewable energy (wind turbines, solar panels, and so on), but much of it still comes from coal, burned in power plants miles away from our homes and factories. Inside a coal-fired power plant, coal ...