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साइकिल कैसे चलती है? पैडल, चेन, संतुलन और ब्रेक
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◷ 2:45
यह शैक्षिक गीत दिखाता है कि पैडल, क्रैंक और चेन पिछले पहिए को कैसे घुमाते हैं, टायर और ज़मीन के बल साइकिल को आगे कैसे बढ़ाते हैं, और मोड़ना, संतुलन तथा घर्षण सुरक्षित चलने में कैसे मदद करते हैं।
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▶3:13Audio language: EnglishSongs
Maja turns on the TV and wonders how a fish can swim across the screen—and where its splash comes from. This song explores how a signal guides pixels and speakers, how changing still pictures appear to move, and how a vibrating speaker moves the air to make sound.
▶2:55Audio language: EnglishSongs
Ola and her dog discover why it feels cooler beneath a tree and how trees support people, animals, and the neighborhood. This cheerful children’s song also introduces leaves, oxygen, roots, and rain while showing that a sapling needs the right place, regular care, and time to grow.
▶2:47Audio language: EnglishSongs
Why does the Sun rise later and set earlier in Poland during winter? This curious, rhythmic children’s song shows how Earth’s tilted axis gives Poland less time in sunlight. A simple lamp-and-globe model helps explain day, night, and the Sun’s low-looking path as seen from Earth.
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