username505 | 5 years ago | on: Ask HN: Why are there no open source 2d printers?
username505's comments
This and exactly this; 2D printing technology is sealed tight because of those damn microdots. Lulz
username505 | 5 years ago | on: Do we really travel through time with the speed of light?
Imagine still thinking ‘You’ travel anywhere - as opposed to the distance between objects and the matter there within expanding and contracting to infinitismally small and large (real-time/life-size) proportions... hmmm lol begs the question do you move through life or does life pass you by?
username505 | 5 years ago | on: “Cold Tube” cooling system uses half the energy of an air conditioner
The total efficiency of an air conditioner will never be more than 100% based on design; you will never be able to remove more heat than what the system produces in net cooling effect based off of the energy consumption created from compression - this is what would lead you to the eventual path of the theory of the heat death of the universe. You may be able to remove heat from one place to another but never more than what the system produces. Heating systems are completely different regarding efficiency.
username505 | 5 years ago | on: “Cold Tube” cooling system uses half the energy of an air conditioner
This is false
username505 | 5 years ago | on: “Cold Tube” cooling system uses half the energy of an air conditioner
This is just a geothermal unit with the evaporator built around the load and instead of air to air transfer through convection it is air to air transfer through radiation... nothing but smoke and mirrors. The problem with efficiency and A/C is the excess heat generated by the compression element of the Refrigeration Cycle. The closest thing to 100% efficiency is achieved through absorption chillers that utilize an internal chemical reaction based off of external heat to produce compression through a metered system... neat idea though. Heating systems that utilize the same process are different though - you can achieve greater than 100% efficiency with the use of flash gas bypass designs that will say for example produce 1.5 tons of heat in a 1 ton system.
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