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  1. Tahden lento

  2. The Sunspot Cycle

  3. Telescopes in secondary school

  4. Грешката на Нютон или как да измерим скоростта на светлината във вода

  5. A story of quantum mechanics

  6. Detecrting the invisible

  7. Auringonpilkut

  8. Tdhden vdri

  9. Liquid Helium

  10. Wiens law

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