Topics from August 2018 How does a photocopier work? Posted by Keshav Jain on Tuesday, August 28. 2018 How is natural gas obtained? Posted by Keshav Jain on Tuesday, August 28. 2018 How does an electric motor work? Posted by Keshav Jain on Tuesday, August 28. 2018 How is electricity supplied to our homes? Posted by Keshav Jain on Tuesday, August 28. 2018 What happens to our waste? Posted by Keshav Jain on Tuesday, August 28. 2018 How do we obtain fresh supplies of water? Posted by Keshav Jain on Tuesday, August 28. 2018