The Home Energy Analysis System enables you to record electricity, gas and water bills. Also enter your own meter readings to produce a detailed database. A range of graphs is produced showing cost, consumption and CO2 emissions by week, month and year. The effect of alternative energy sources can be seen. Energy use can also be graphed against local climate factors. See the effects of your own energy saving initiatives.

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A useful hydroponics calculator to help your hydroponic grow. Includes calculators for grow light wattage, grow light energy costs, EC or PPM conductivity, temperature conversion, air exchange, and a carbon dioxide calculator to see how much co2 your garden needs.

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carbon footprint, you can enter in your location, number of people in your house, as well as energy use from fuel oil, natural gas, and electricity. Also included are indirect carbon footprint categories like recreation habits, purchasing habits, waste, recycling participation, food, and more. Different units are available so you can calculate your carbon footprint in metric units or English. You can also print out a summary of your carbon footprint

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Mars has always fascinated people. Its red, fiery appearance is mysterious and intriguing. Many sci-fi stories talked about the ancient race of Martians. In fact with new data coming from space probes, a growing number of scientists now believe that life on Mars is quite likely. Roughly two-thirds of all spacecraft destined for Mars failed for no apparent reason. But you do not have to worry because this screensaver will get you there safely.

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