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| Preparations in the hallway | Mr. Schlösser welds the base | Transport of the mirror |
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| Assembling the telescope | Assembly almost complete | The telescope is standing |
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| Problems 1 | Problems 2 | Problems 3 |
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| Circuit diagram | Problem solving 1 | Problem solving 2 |
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| Problem solving 3 | Problem solving 4 | Everything works. Finally! |
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| Smiling for the press | Betina Böttinger reports live from the school roof |