The How to Database

‘The world is running out of potable water and a major policy initiative to guarantee freshwater as a human right is required. In a most interesting article from the Guardian, Jeffery Sachs of the UN's Millennium Project notes the world simply has "no more rivers to take water from". And the near total lack of basic water policy for the future is noted, such as how aquifers to be recharged are and how to sustain ground water use? For some time I have thought that a major water shortage crisis that ravishes millions may, even more so than climate change (though it may be the cause), galvanize the world to realize the extent to which the global biosphere teeters upon the edge of ruin. Then we may see the surge of personal lifestyle changes and policy prescriptions from governments and businesses adequate to achieve global ecological sustainability. The article notes that not only are China's and India's water supplies threatened but their food production as well. T...

Electricity is mainly used to power lights, TV, refrigerators, air coolers and conditioners, heaters etc. You can follow the steps written in the article “ How to save electricity with the help of battery powered appliances? ” to save the electricity lost in lights, fans, TV, refrigerators etc. To save electricity for air cooling and conditioning: Place some special plants in your house . Your room temperature can also be controlled with the help of some floras. Below is a list of plants and its effect on your room. Place them and enjoy the natural cooling and heating. Dwarf Bamboo : Create a shade in your room. Many people increase their room decor with Chinese dwarf bamboo trees and is well known for its room-cooling property. Keep it for 5 days and check the room temperature .You will know the difference. Cloaca : NASA take these plants in its space ships. They are extremely popular with space scientists as it is a very low cost oxygen generator. But Cloaca is a very t...

Battery powered appliances or B.P.A does not need normal electricity. They store the electrical energy as chemical energy and whenever a suitable path is provided the chemical energy transforms to electrical energy. When the energy is used up the battery is needed to be charged again. So electrical energy is applied to batter and a chemical reaction occurs where the given energy transforms into chemical energy. Whenever a path will be provided electricity will be again ready to run the attached appliances. Laptop, cell phones, i-phone, portable TV sets, emergency lights etc. all run with the help of batteries. When you charge your phone to use them without wires you are actually charging the battery of your cell phones. This battery on full charge will enable you to talk wirelessly with that phone . Without any wires means without any electricity generated from coal based power plants. Hence you conserve a lot of coal from burning. Coal is a finite resource and conservation is necessar...

Heating and cooling account for about 56% of the energy use in a typical U.S. home, making it the largest energy expense for most homes. A wide variety of technologies are available for heating and cooling your home, and they achieve a wide range of efficiencies in converting their energy sources into useful heat or cool air for your home. Set the temperature lower in the winter when your home is unoccupied. Use a programmable thermostat to automatically lower and raise the temperature according to your settings. Set the thermostat as low as comfortably possible in the winter. The less difference between the indoor and outdoor temperatures, the lower your overall heating bill will be. Clean furnace filters monthly. Dirty filters restrict airflow and increase energy use. Keep the furnace clean, lubricated and properly adjusted to save up to 5% of heating costs. Look for a room air conditioner with a filter that slides out easily for regular cleaning. Clean filters help keep the unit in...

In an average middle class household you can expect one or more desktop computer, television, refrigerators, microwave, cell phone etc. If you live in a typical U.S. home, your appliances and home electronics are responsible for about 20 percent of your energy bills. These appliances and electronics include everything from clothes washers and dryers, to computers, to water heaters. Steps below describe the methods to save energy and hence money by some changes in your use of those electronic appliances. Consider buying a laptop for your next computer upgrade; they use much less energy than desktop computers. There is a common misconception that screen savers reduce energy use by monitors; they do not. Automatic switching to sleep mode or manually turning monitors off is always the better energy-saving strategy. Make sure power management is activated on your computer. To maximize savings with a laptop, put the AC adapter on a power strip that can be turned off (or will turn off automat...

Electricity is generated when a turbine rotate a rotor with the help of some force. This force can be generated with the help of steam, diesel, gas, water or wind. First 2 energy producers releases greenhouse gas and uses earth’s coal and oil storage. As the amount of coal and oil is finite energy costs are reaching record highs (Demand of coal Consider using high-intensity discharge (also called HID) or low-pressure sodium lights.Exterior lighting is one of the best places to use fluorescent lamps (CFLs) because of their long life. If you live in a cold climate, be sure to buy a lamp with cold weather ballast since standard CFLs may not work well below 40°F. CFLs are most efficient when they operate for two or more hours at a time. CFLs use at least 66% less energy and last 10 times longer than incandescent lights. Replacing four of the most often used incandescent light bulbs with CFLs can save you $35 annually. Turn off decorative outdoor natural gas lamps; just eight such lamps bur...

Shape files are so-called vector databases, describing the location of points (e.g., collecting locations), polylines (e.g., roads) or areas (or polygons, e.g., soil types, countries). A shape file actually consists of three separate files with the same name but with different extensions (SHP, SHX and DBF), but they are treated as one file. ESRI, a leading GIS software company. They were initially developed for use in ArcView, but now nearly all GIS programs can either directly use them, or import them. Shape files can be prepared with the help of any commercial software and also by some free software. Before going to the main tutorial a more detail concept of shape file is needed. Shape file mainly consist co-ordinates and value/s attached. By far the most accurate representation of elevations is done with shape files. In this case co-ordinates and elevation of that point is recorded in the shape file. For an example, try to answer the following question? How can a man who can not rea...

Shape files are so-called vector databases, describing the location of points (e.g., collecting locations), polylines (e.g., roads) or areas (or polygons, e.g., soil types, countries). A shape file actually consists of three separate files with the same name but with different extensions (SHP, SHX and DBF), but they are treated as one file. ESRI, a leading GIS software company. They were initially developed for use in ArcView, but now nearly all GIS programs can either directly use them, or import them. Shape files can be prepared with the help of any commercial software and also by some free software. Before going to the main tutorial a more detail concept of shape file is needed. Shape file mainly consist co-ordinates and value/s attached. By far the most accurate representation of elevations is done with shape files. In this case co-ordinates and elevation of that point is recorded in the shape file. For an example, try to answer the following question? How can a man who can not re...

Programming language like C, C++, Java or scripts like PHP, JavaScript help us to make ineractive applications that can easily accomplish repetitive works or complex goals. But can you build such applications without knowing any programming languages? Each application is based on data .Data is stored in a database. The programming languages take the data as required and with the data it performs the job it was instructed to do. So every application has a database and programming language to solve the problem. It also has interfaces that help a user to give the input of the problem and also to see the output of the same. MS Excel can also do the same. With MS Excel and a software called Spread Sheet Converter (earlier Excel Everywhere) anyone can develop a complete user friendly application. Everyone using a computer need to know MS Excel which is a simple application that helps a user to perform various calculation and store data in a table like interface. If you know Excel well then ...