query: Why doesn't the Earth slowly collapse into the Sun?
positive_passages.docid: 3617
positive_passages.text: Why doesn't the Moon fall onto the Earth?
negative_passages.docid: 33629
negative_passages.text: Why does the Sun's (or other stars') nuclear reaction not use up all its "fuel" immediately?
negative_passages.docid: 137837
negative_passages.text: Why electrons can't radiate in their atoms' orbits?
negative_passages.docid: 34834
negative_passages.text: Can helium disappear from Earth?
negative_passages.docid: 94778
negative_passages.text: Why can't I do this to get infinite energy?
negative_passages.docid: 41170
negative_passages.text: Why is gravity so hard to unify with the other 3 fundamental forces?
negative_passages.docid: 54954
negative_passages.text: If Newton's third law is true, why can we sink in sand?
negative_passages.docid: 48289
negative_passages.text: Question on the stability of the solar system
negative_passages.docid: 76879
negative_passages.text: Why don't we consider centrifugal force on a mass placed on earth?
negative_passages.docid: 136062
negative_passages.text: Can we get energy from the Earth's rotation?
negative_passages.docid: 152215
negative_passages.text: How gently could a comet/asteroid/meteorite “hit” Earth?
negative_passages.docid: 39024
negative_passages.text: How precisely does a star collapse into a black hole?
negative_passages.docid: 143720
negative_passages.text: Why is there a temperature gradient on Earth?
negative_passages.docid: 65915
negative_passages.text: Why does the sun always have some whiteness?
negative_passages.docid: 20981
negative_passages.text: Why is Earth's gravity stronger at the poles?
negative_passages.docid: 89194
negative_passages.text: Potential at Center of Earth
negative_passages.docid: 156661
negative_passages.text: Why don't we feel the subtle speed change of Earth's elliptical orbit?