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Carl Wagner

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Carl Wagner was a great scientist. He studied how tiny parts move in solid things. He looked at how small bits move through crystals. This helped us see how things change at a tiny level.

His work helped us understand how things react. This knowledge is used to make new tools. It helps us build better batteries. It also helps us make solar power.

He was a teacher at a school in America. Later, he went back to his home in Germany. He led a big science group there. He won many prizes for his smart ideas. He is called a father of his science field.

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