Stephens

Model airplane engines come in many shapes and sizes from many manufacturers. By far the most common for the moment is the 2-stroke glow engine though the modern electric motor is making rapid inroads as it gains in popularity. The 2-stroke model airplane engine is an internal combustion engine burning glow or nitro fuel consisting mostly of alcohol with nitromethane to help combustion and castor oil for lubrication of the metal parts. There are also 4-stroke glow engines that work on the 4-stroke principle. While these two types of model airplane engine produce the same result, and use the same fuel, they accomplish this goal in very different ways and have different characteristics. For the moment we re just going to consider the 2-stroke engine. RC model airplane engines working on a two stroke principle means that there is fuel ignition on every second stroke of the piston in the...

Why do you dream. The precise function of dreaming when we sleep is still a matter of disputation among scientists and dream researchers. One accepted theory holds that dreams are a way for the subconscious mind to rinse out itself and make sense of the sensory inputs gotten during the daytime where you were awake. Another accepted theory is that dreams are a sort of let go valve. For example, a lot of people hold back or repress their feelings of anger and dislike during the day. The theory says that dreams are a practical and safe outlet for those repressed feelings to be express. Can dreams tell the future. At the same time as many people feel that their dreams can tell the future, there is no scientific proof that dreams are foretelling. What a lot of people mistake for prediction may actually be the fact that the subconscious mind notices things that go totally unnoticed by the...

We should pay more attention to the water we drink, as it has important effects on your health. First of all, the title begs the question: what is pure water. Well, to start off with, tap water is not pure water. Pure water is high-quality bottled spring water, or water filtered by a high quality water filter. It is essential that your water be pure water, as just tap water has impurities in it that can be harmful to your health. One of the main problems with tap water is the chemicals used to purify it from pathogens. Most water sources use chemicals such as chlorine, and other chemicals which are very unhealthy. Also, most tap water originally comes from poor quality sources. A good example is the city where used to live. They got their water from the local river, which was far from clean. Several upstream cities dumped treated sewage into the river. There were also many farms upstream...