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The sun is the source of all our power. A statement not untrue, albeit a little misleading. The sun’s radiation is the origin of all the power sources we use today, affecting chemical changes to create everything from nuclear power to the much greener wind power. But how do we harness the sun’s energy, and how effective is it? A worthy question. After all, solar power is almost eternally available and, most importantly, free.

Applications

In theory, solar power can power everything on earth. In practice, it’s a matter of logistics. Solar power is the conversion of sunlight to electricity through either converting it directly to photovoltaics (PV) or by concentrating solar power (CSP), using it to boil water into steam, which then generates electricity. Since the sun is only emitting radiation on any given point during daytime hours, and is affected by elements such as cloud cover, it needs to be combined with a method of energy storage. Solar power’s potential is vast, and could easily supply all the energy in the world, hundreds of times over. However, the problem lies within the cost. Although the cost is coming down, solar power panels and plants are very expensive to produce.

How it works

The energy released from the sun is radiation – light and heat. This can be harnessed in two ways. Firstly, by using panels containing photovoltaics, which absorb the radiation and convert it into direct current energy. Photovoltaic devices are a type of photodiode, which means photons of light from the sun knock electrons within the device into higher states of excitement, thus generating electricity. The other method is by concentrating solar power by means of mirrors and lenses onto a point, which can then be used to heat up water, converting it to steam and then energy. Think of a kid using a magnifying glass on an ant colony, then magnify that heat (excuse the pun), and you can see what kind of energy can be produced.

By Joshua Nicholls

A DIY kitchen remodel project can be very challenging, particularly when the space you have to work with is limited. At the same time, however, there are many advantages to a small kitchen remodel compared to projects involving larger spaces. The main advantage is that a small kitchen costs less to renovate. This is because a kitchen involves many expensive services such as plumbing, garbage disposal, ventilation and extra lighting and electrical needs; hence, the smaller the space the lower the expenses. And, of course, a smaller space makes for a more manageable do-it-yourself project. Small kitchens are those whose floor space measures around 9 feet by 14 feet.

The first thing you have to decide on in your kitchen remodel project is what layout to use. While there are many small kitchens that are square in shape, most are rectangular. Hence, the best layouts are those which make the best use of available space, including L-shaped and U-shaped, one-wall and galleys. To illustrate, the one-wall design allows unimpeded movement around the kitchen by placing all the major kitchen appliances (refrigerator, stove) along with the sink, in a line along one wall. If you want more counter space, on the other hand, the L-shaped layout, also known as the classic kitchen triangle, gives you that by placing the refrigerator and the range at a roughly right angle to each other with the sink at the center.

Another perk of small kitchen designs for your own home is that thousands of dollars can be saved. Instead of spending cash for buying separate cabinets and storage for kitchen utensils, investing in built-in kitchen utensil keepers will save space and money at the same time. Also, if you are having troubles with overhead compartments, you might want to keep it a free but usable space. Built-in uncovered ledges will make the kitchen appear a little bit wider and “open” in a literal sense. Freely hanging utensils on the kitchen walls are also great space savers.

By DK Mills

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