Sujet

Chemical formula written with chalk on a blackboard

Légende

Chemical formula written with chalk on a blackboard, Germany, Europe

Date

02 févr. 2013

Crédit

Photo12/imageBROKER/Judith Thomandl

Notre référence

BRK19G42_017

Model release

Non

Property release

NA

Licence

Libre de droits

Format disponible

60.1Mo (1.5Mo) / 47.5cm x 31.7cm / 5612 x 3742 (300dpi)

Mots clés

Central Europe Europe German Federal Republic Germany Middle Europe No People blackboard blackboards board boards chalkboard chemical chemical formula chemical formulas chemistry education educational institution educational institutions educational politics educational reform educational reforms educational system electron line diagram electron line diagrams field of education fields of education formula formulas natural scientific no one nobody school schools science sciences scientific scientific research state of emergency in education states of emergency in education natural science natural sciences