Science blog

The difference between natural acne treatments products and non-natural acne treatment products is that difference except natural treatment products does not include any side effects. Although natural acne treatment products have been increasing its popularity over the latest few years, another popular type of acne treatment was found, the home made acne treatment products. Home made acne treatment products may range from natural products to non natural products. The greatest advantage is that one can use different acne treatment products until you find one that they prefer and that works best on them. So this way they do not need to buy many different products to find one that works best but easily make the product at home to try it and then make more when it gives a good result. Still sometimes these treatment products can be natural, they also give the advantages of natural treatment products, no side effects. They are still acne treatment products but they may take longer to treat the acne, sometimes it may take up to months with a home made acne treatment product to make the acne go away. Basically home made acne treatments are made with the sources that one has. Since everyone is different, the identical acne treatment product will not give the same results to everyone. So therefore home made acne treatment can quickly find the perfect acne treatment product for you. This type of acne treatment has been gaining popularity for a long time now. This type of acne treatment is also the cheapest kind of acne treatment out there. Some researches have found that other people's remedies for acne will not work sometimes but then when using a home made acne remedy, it could do the job and get rid of your acne. There is also one bad point in using home made acne treatments. They might not work and may sometimes add to the problem. If the treatment has not been made correctly it may add to the acne problem with side effects and other skin issues. Most people would just use trail and error because most of the skin issues that is caused by a side effect can be cured. It is best to do some research before making your own home made acne treatment product.

Renewable energy is not a new concept. While it may appear to be a rather fashionable topic of conversation in certain circles, renewable energy initiatives have been with us since the dawn of man. There is some debate about the accepted definition of renewable energy, but it can be loosely defined as a form of energy that is essentially inexhaustible. Furthermore, the resource is continually replenished by various natural processes identifiable in the natural world. One key distinction to make when discussing the concept of renewable energy is that of sustainability. One could make the argument that, in the long term, fossil fuels are a renewable energy resource. While the logic stands on its own, this is a failed notion. The central difference between fossil fuels and other forms of renewable energy is that fossil fuels are being depleted at a rate faster than they can be replenished. For this reason, fossil fuels cannot be considered truly renewable. They are simply not sustainable, due to the accelerated rate of consumption. Some of the more popular renewable energy resources include sunshine, water, and wind. Solar energy refers to the energy that is collected from sunlight. This form of energy is captured using a photovoltaic array, more commonly known as a solar panel. The solar radiation is captured by the photovoltaic array and converted to direct current (DC) electricity. From there, the direct current electricity must be converted to alternating current (AC) for use in most applications. The converted electricity is then stored in a battery for use at a later date. There are also various forms of energy that exist in water. One of the most commonly acknowledged is that of hydroelectric energy, but there are a number of others including tidal power and ocean thermal energy conversion. Hydroelectric energy generally employs the use of a dam, wherein the energy of the water flow is captured and used to power a turbine. The turbine then generates a supplementary form of electricity. Tidal power attempts to make use of the natural energy potential of tidal activity in the oceans and seas. In simple terms, the high tide is captured and fed through a turbine to generate electricity. Ocean thermal energy conversion attempts to exploit the variances in water temperature, from the warmer surface water to the cooler deep water, resulting in a cyclic heat engine. Wind power is one of the oldest accepted forms of renewable energy. It has been used for centuries as a source of power, dating back to the creation of the sailboat. The innate potential of wind power was realized a number of years later in the form of a wind mill. In this instance, the kinetic energy of wind is used to drive a turbine which, in turn, generates electricity. Wind energy possesses immense potential for sustainable energy generation, and a number of large-scale development projects are currently underway throughout the world. One of the greatest challenges facing humanity is to discover a way to reduce our reliance on unsustainable resources, like fossil fuels. Most, if not all, modern industrial societies rely far too greatly on fossil fuels and increasingly, this is becoming an undeniable reality. Wars of conquest are being waged to secure what is left of the world's oil reserves. If only the resources of the powerful nations were channeled into developing sustainable energy alternatives, as opposed to driving a war machine bent on dominating the oil markets. Our modern way of life is going to undergo some difficult times in the very near future, if this reality continues to be ignored. Ask yourself what you can do to make a difference. You might be surprised at what you can accomplish.

Many scientific and engineering thought leaders consider fuel cell power stacks as the primary technology in the evolution of electronic or alternative fuel automobiles within the next decade. According to Makino, a global provider of advanced machining technology, technologically advanced vertical machining centers are proven to be the ideal method for machining and manufacturing molds for the production of fuel cell power stack separator plate membranes. These membranes are the key to producing affordable fuel cell power stacks. Certain rigid and thermally stable vertical machining centers can produce a depth accuracy within 2 microns, and a superior surface finish quality of 0.4 microns in 40 Rockwell C steel molds, both of which are essential in making such plastic and rubber membranes. These membranes have to be of high quality and specification to establish the proper electrochemical conversion process to convert hydrogen and oxygen from the air into water. The process flow then produces electricity and heat, especially when configured in a fuel cell stack via a reformer, which controls and regulates the hydrogen for safety. Such an electrolyte or proton-exchange membrane separates and buffers the negatively charged anodes, repelling electrons, and the positively charged cathodes, attracting electrons. The membrane allows the electrons to flow through it to the cathode side of the fuel cell stack, generating electricity. Combustible fuels burn, and standard batteries store electrical energy as chemical energy and convert it back again. But a fuel cell stack provides direct current power. Unlimited supplies of fuel cell stack energy can be created via the mass production of low-cost membranes, which can be a growing market for most machine shops equipped with technologically advanced verticals. This energy source can not only be used as power for automobiles but also as power for utility companies and home generation units, offering the world low-cost, safe, quiet, efficient, environmentally friendly and readily available power solutions.

Viewed from space, the Earth appears to have four or five major landmass areas depending on your viewpoint. Despite this, we hold on to the illusion there are more continents. As we all learned in grade school, there are seven continents. A quick look at a globe, however, reveals this basic assumption is just flat wrong. In particular, how can Europe be considered a continent when there is no clear division with Russia? To the surprise of many, the Arctic is not classified as a continent. Instead, it is divided up between North America and Asia. Yes, Asia because Russia is considered to be part of it in the seven continents model. Following are the accepted seven continents in alphabetical order. Africa is undeniably a continent by any definition. It is also the second largest one as a measure of landmass, covering over 11,700,000 square miles and making up 5.9 percent of the total surface of the Earth. As a measure of population, Africa is second most populous continent with over 840 million people. Antarctica is also considered a continent, if a particularly barren one. 98 percent of Antarctica is covered in ice and it is the only continent neither considered a country nor claimed by any other country. Based on sheer size, Asia is the dominant continent in the world. It has the largest landmass area and is home to over 60 percent of all humans. Talk about traffic jams! In truth, the measurements on Asia can be a bit misleading. Under the seven continents methodology, Asia extends over much of Russia, the Mideast and even parts of Egypt. Often referred to as the forgotten continent, Australia is the fourth continent. Incorrectly referred to as an island for significant periods of history, Australia is undoubtedly a continent. That being said, it is the smallest in landmass with just more than 4,000,000 square miles, but has a healthy population of over 20 million people. Europe is also considered a continent, but there is little geographic evidence supporting this claim. The continental designation is primarily a political and historical development. Regardless, Europe covers an area of 4 million square miles, but is heavily populated with over eleven percent of the world population at 705 million people. North America is our next continent. Once again, we run into the practical issue of boundaries. Using the seven continent methodology, North America extends into the arctic as expected, but is also considered to include much of Central America. The total landmass is 9.45 million square miles. 514 million people are estimated to live in North America. Our final continent is South America. Covering 6.9 million square miles, South America covers 3.5 percent of the total surface of the Earth. With a population of 371 million people, it ranks as the fifth most populous nation. The misleading nature of the seven continent theory has to do with Europe. If the countries of Europe weren’t such powerful entities through history, would we really consider it a continent? Not likely!