AUSTRIA

BHAK Grazbachgasse

Kathiimpatient

and

Max

Project development

Earth radius measurement

Plans for constructing a sundial

Plans for the second year

Earth radius measurement

Preparation: Thin rod as gnomon

axis with direction north-south

Measurement on March, 11th Rod length 30 cm

Results:Shadow length 37 cm

Sun in zenith at 12:10

Analematic sundial

Person acts as gnomon

On the sports ground

Data needed:Geographical latitude of Graz

Minor axis in north-south direction

Suns‘s declination for each month gives the distance from March 21

Hour angle of the sun for each day gives the distance towards north

Plans for the next year

Air Pollution in Graz

Air Pollution in Graz

What we plan to do:

o Collect data on atmospheric matter in Graz

o Discuss formation, composition and development of air pollution

o Statistics using these datao Discuss solutions from the government o Develop own ideas

Causes I

trafficindustry

Causes II

heating with firevalley position of Graz

Solutionsfrom the government

What everyone can do

?