Who started an outdoor school in Switzerland?
Auguste Rollier
How did they reach their destination in winter?
on skis
Did they take their own desks and chairs with them?
yes
What else?
school books
What was one factor is choosing where to set up their desks?
was free from cold winds
What else?
faced the sun
Weren't the students cold?
No.
Were they wearing a lot of clothing?
No
Then why weren't they freezing?
their bodies were full of energy
Is there a condition in which sunlight can be dangerous?
Yes
What is that?
If tuberculosis is attacking the lungs
Where in Switzerland is Rollier's school?
Lysine
Is it the only one in the country?
No
Which rays have the greatest effect?
infra-red and ultra-violet rays
What does fog do to ultra violet rays?
they get lost
Are they stronger near big cities?
no
What things did Dr. Rollier believe helped fix many diseases?
Sunlight
Any others?
artificially produced rays
What do people from Northern Europe spend a lot of time on during the winter?
planning their summer holidays
What ancient civilization was aware of the sun's powers?
Greece