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Wednesday, October 1, 2008
-11:27 AM
On 29th July 2008,we went on a learning journey to singapore polytechnic.After the lecture,we've learnt that there are other sources that we can use to replace the burning of fossil fuel which will run out in about 42years time.One of the alternative source is the solar power!I've learnt that solar energy can be used to power appliances and its many other uses of the solar energy.I've also learnt that photovoltaic cells can convert the light energy from the sun to electrical energy,which is later used to power appliances.Saving energy is also very important.The lecture was great as it provides many useful information about the alternative sources.Solar energy will not harm the environment like the fossil fuels will when burnt.The trip was an eye opener for me.Other than the lecture,I have also seen how the solar energy is being used in Singapore Polytechnic!peijun (15) 2o8.
