Recycling light
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Scientists in the United States have developed a new lightbulb prototype that is three times more energy efficient than standard incandescent lightbulbs, using a technique that significantly improves the efficiency of traditional incandescent bulbs.
Recycling light
- 1. Recycling light EPISODE 160112 / 12 JAN 2016 Step 1: Listen You're going to hear a genuine BBC news report from 12th January 2016. Before you listen, read these three summaries: a) A lightbulb which uses much less energy than an older model has been developed by scientists in the US. b) A lightbulb which uses much less energy than an older model has gone on sale in the US. c) A lightbulb which uses slightly less energy than an older model has been developed by scientists in the US. Now listen and decide which one is correct. Listen again if you need to. Step 2: Learn the key words and listen again How was that? Try listening again. Here are three definitions of key vocabulary items which may help you. significantly by a large or noticeable amount incandescent producing light from a heated part
- 2. prototype the first example of a new product Step 3: Transcript and answer Researchers in the United States say they've developed a technique that can significantlyimprove the efficiency of the traditional incandescent lightbulb. They say they've built prototypes that are already three times more efficient than standard incandescent bulbs. Answer a) A lightbulb which uses much less energy than an older model has been developed by scientists in the US. This bulletin comes from BBC World Service Radio.