However, hydrogen does not naturally exist on Earth in its elemental form. Engineers and scientists must produce pure hydrogen from hydrogen compounds, including fossil fuels or water. In order to extract hydrogen from these compounds, you have to exert energy. The required energy may come in ...
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...
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Sources: American Wind Energy Association,Wind Blog,Stanford School of Earth Sciences Many large energy companies offer "green pricing" programs that let customers pay more per kWh to use wind energy instead of energy from "system power," which is the pool of all of the electricity produced in...
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The wire is connected to an electrical-current meter and to the platinum electrode on the other side. The protons move through the lower portion of the fuel cell and combine with oxygen and the electrons on the other side to form water. The more alcohol that becomes oxidized, the greater ...
It’s easiest first to provide the votes attribute syntax; this simply requires that you provide a field in the UpvoteComponent and decorate it using the @Input decorator, so that Angular can discover it and wire up the necessary code to pull the value of votes and store it in that field...
Air-current cycles drive the Earth's water supply through a cycle of its own, called the hydrologic cycle. As the sun heats liquid water, the water evaporates into vapor in the air. The sun heats the air, causing the air to rise in the atmosphere. The air is colder higher up, so as...
To summarize, wireframe testing works as a proactive action and can be very helpful in finding usability and design loopholes in the application pre-development phase. With this, I am wrapping up the topic, in the hope that readers will tempt me to write another post on this by asking ques...
A motor works on the same principles, but in the opposite direction -- it converts electrical energy into mechanical energy. To do this, a motor needs a special kind of magnet known as an electromagnet. In its simplest form, this consists of an iron bar wrapped in a coil of wire. If...