Water bottles used for creating cheap lighting
Rob and Cath talk about an ingenious invention which is bringing a bit of brightness into the lives of the poorest people in the Philippines.
This week's question:
How many islands make up the Philippines? Is it:
a) 107
b) 707
c) 7107
Listen out for the answer at the end of the programme!
Listen
An ingenious invention
End of Section
Vocabulary
- ingenious
very clever
- slums
areas of a city where living conditions are very bad
- obstacle
something which makes it difficult to go forward or do something
- insignificant
not important
- virtually
almost entirely, nearly
- necessity
the need to do something
- essentially
in a fundamental or basic way
- algae
plant-like organism living mainly in water
- refracted
here, a ray of sunlight which changed its path where it entered water
- economical
does not require a lot of money to operate
- watts
units of measurement of electrical power
