You will hear a short lecture. Write a summary for a fellow student who was not present at the lecture. You should write 50 – 70 words. You have 10 minutes to finish this task. Your response will be judged on the quality of your writing and on how well your response presents the key points presented in the lecture.
This is a 40-watt light bulb. If you leave it on all the time,it uses one kiowatt everyday. And It’s possible to express all forms of power consumption using this unit of the light bulb. I started measuring everything, around the house around my office. and I found some surprising things. First, I plugged in a phone charger and it didn’t even register on this parameter. it uses one-hundredth of a light bulb of power. So, I don’t think the phone charger is going to be our number one form of energy consumption. just taking one hot bath every day uses the same energy same power as five like off on all the time non-stop. and I’ve have been steadily using 40 lightbulbs worth of gas for heating making hot air and hot water and that surprised me. transport is one of the biggest forms of energy consumption, it uses about a third of our energy. if you drive an average car 50 kilometres a day, that corresponds to having 40 light bulbs on all the time today. the average British person is using a 125 lightbulbs that’s 125 lightbulbs long all the time non-stop. that’s huge!.
