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I don't get what significance dust in rwby or chakra in naruto has in this discussion. Just because a source of power/energy/whatever is required to do the freezing feat, doesn't mean the required energy is proportional to the amount of thermal energy moved. For example, with a refrigerator, energy is obviously required to operate. However, there is no strict proportional relationship between the energy required to operate a fridge (if we only know that it is a fridge, not what kind it is) and the amount of thermal energy it displaces. Some fridges are more efficient than others. |
I don't get what significance dust in rwby or chakra in naruto has in this discussion. Just because a source of power/energy/whatever is required to do the freezing feat, doesn't mean the required energy is proportional to the amount of thermal energy moved. For example, with a refrigerator, energy is obviously required to operate. However, there is no strict proportional relationship between the energy required to operate a fridge (if we only know that it is a fridge, not what kind it is) and the amount of thermal energy it displaces. Some fridges are more efficient than others. |
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| − | The second type of freezing is using a refrigerant (could be ice, liquid nitrogen, maybe some magical material) to absorb heat. This one is more grounded in reality. An example is putting ice in a drink to cool it down. This can't scale |
+ | The second type of freezing is using a refrigerant (could be ice, liquid nitrogen, maybe some magical material) to absorb heat. This one is more grounded in reality. An example is putting ice in a drink to cool it down. This can't scale. Thermal energy always (automatically) moves from hot to cold. If you had a freeze beam made of liquid nitrogen or something, the only energy you'd need to provide is the energy that propels it. |
Latest revision as of 21:46, 25 December 2019
I don't get what significance dust in rwby or chakra in naruto has in this discussion. Just because a source of power/energy/whatever is required to do the freezing feat, doesn't mean the required energy is proportional to the amount of thermal energy moved. For example, with a refrigerator, energy is obviously required to operate. However, there is no strict proportional relationship between the energy required to operate a fridge (if we only know that it is a fridge, not what kind it is) and the amount of thermal energy it displaces. Some fridges are more efficient than others.
The second type of freezing is using a refrigerant (could be ice, liquid nitrogen, maybe some magical material) to absorb heat. This one is more grounded in reality. An example is putting ice in a drink to cool it down. This can't scale. Thermal energy always (automatically) moves from hot to cold. If you had a freeze beam made of liquid nitrogen or something, the only energy you'd need to provide is the energy that propels it.