Weiße Windmühle. Nahaufnahme eines kleinen Modells einer weißen Windmühle, das in der Nähe eines Teenagers auf dem Tisch steht - Stockfoto & -bild

Cognitive lessons . Curious dark-haired boy holding white plastic house while observing example of windmill infrastructure

Discussing ecology. Curious young student carrying plastic example of a tree and attentively inspecting it

Environmental project. Original gifted ambitious team developing a concept of modern wind turbine while creating little samples of possible large scale engines

Diligent student. Pleasant pre-teen boy sitting at the table full of models of alternative sources of energy and reading the corresponding section in his ecology book

The way it works. Competent man sitting near his son talking to him while actively gesticulating

Work with diligence. Pleasant young man sitting at the table and drawing a sketch while thoroughly copying the details of wind turbine construction, being in the focus

Air energy. Incredible lively engaging guy sharing the details of his new development with the colleague while using little models for illustrating his words

Windmill infrastructure. Positive little student being interested in learning ecology and holding presented models

Progressive invention. Emotional young man looking surprised while touching a model of a windmill generator

Great results. The focus being on three wind turbine models staying on the table while the smiling man holding a blueprint and looking at them with a broad smile

That is wonderful. Silhouette of young man that standing near board and looking forward while talking to his colleague

Ambitious project. Motived talented young engineers looking at the blueprints of wind turbines while working on their new project and creating an efficient renewable energy source

Enjoying results. The focus being on three wind turbine models standing on the table while a man with a blueprint in hands looking at them

Effective collaboration. Two cheerful man sitting at the table and discussing a wind power station model while pointing at it with their hands

Well done. The focus being on a recently built wind power station model being looked at by two pleasant smiling colleagues sitting at the table

Happy worker. The focus being on three wind turbine models standing on the table while the chief engineer standing in his office and talking on the phone