query: Energy efficiency: better to heat hot tub constantly or twice a day for a longer period?
positive_passages.docid: 152034
positive_passages.text: Should I heat my room when I'm not here, energy-efficiently speaking?
negative_passages.docid: 42478
negative_passages.text: Does "turning down the air conditioning" make it warmer or colder?
negative_passages.docid: 123618
negative_passages.text: Why is it a bad idea to re-heat drinking water?
negative_passages.docid: 132501
negative_passages.text: Is there a way to slow down the Day/Night cycle?
negative_passages.docid: 126268
negative_passages.text: How can I optimize Ubuntu for minimal energy usage?
negative_passages.docid: 105102
negative_passages.text: Is it necessary to consume energy to perform computation?
negative_passages.docid: 121134
negative_passages.text: 6 hour cooling contradicts 2/4 hour food use rule
negative_passages.docid: 82646
negative_passages.text: What temperature should I set my water heater to?
negative_passages.docid: 74662
negative_passages.text: water spheres on a hot pan
negative_passages.docid: 24044
negative_passages.text: When would you rather use one over the other?
negative_passages.docid: 153701
negative_passages.text: Vacuum sealing vs. water displacement method when doing longer sous vide cooking
negative_passages.docid: 123654
negative_passages.text: How can energy be useful when it is 'abstract'?
negative_passages.docid: 152712
negative_passages.text: Speed of heat / quantification of heat and other magnitudes
negative_passages.docid: 81545
negative_passages.text: Is perfect thermal insulation possible?
negative_passages.docid: 32946
negative_passages.text: One portable air conditioner - want to use it in two rooms
negative_passages.docid: 77717
negative_passages.text: Does more reflective aluminum foil make a room cooler compared to less reflective foil?
negative_passages.docid: 136998
negative_passages.text: cp vs. mv: which operation is more efficient?