query: Are all means of heating equally efficient?
positive_passages.docid: 96048
positive_passages.text: Is everything 100% efficient at heating?
negative_passages.docid: 123453
negative_passages.text: What temperature can you attain with a solar furnace?
negative_passages.docid: 49235
negative_passages.text: Does a power supply draw only as much power as it needs?
negative_passages.docid: 42409
negative_passages.text: Is there any difference in meaning between 'efficacy' and 'efficiency'?
negative_passages.docid: 122561
negative_passages.text: Is the energy always discrete?
negative_passages.docid: 81450
negative_passages.text: Have we managed to make a perfect vacuum?
negative_passages.docid: 25359
negative_passages.text: Specific heat capacity at constant volume VS constant pressure
negative_passages.docid: 120532
negative_passages.text: Are there any performance comparisons?
negative_passages.docid: 110489
negative_passages.text: Are there any known negative heat capacities?
negative_passages.docid: 88382
negative_passages.text: Work done by ideal gas
negative_passages.docid: 71500
negative_passages.text: Is the product of generators equal to the generator of the product?
negative_passages.docid: 78304
negative_passages.text: Does it require more energy to maintain higher temperature in the same environment?
negative_passages.docid: 105102
negative_passages.text: Is it necessary to consume energy to perform computation?
negative_passages.docid: 144190
negative_passages.text: Is osmosis a kind of thermal machine?
negative_passages.docid: 123654
negative_passages.text: How can energy be useful when it is 'abstract'?
negative_passages.docid: 146039
negative_passages.text: Is it always possible to define energy of a system?
negative_passages.docid: 38166
negative_passages.text: If microwave ovens and WiFi both operate on the same frequency, why doesn't WiFi cook things?