I thought since it is hot someone should invent this mashine:
You have a device hanging on the wall of a room. You click on the screen how cold you want your room to be. Example it's 30°C outside and you want 20°C
The degree that get absorbed (in this case 10 degree) are saved for each hour you absorb it. Like example it's 30 degree for 10 hours so you absorb 10 times 10 degree. You save it till winter. In winter it's let's say 12°C in your room so you use the mashine with the saved summer-heat and heat up your room for 10 hours to 22°C since you saved 10 degree in summer. You can also put in how much you want to use, let's say 8 degree instead of 10 so you can heat up your room for 12 hours instead. The mashine also works with barly any electricity and uses no gas so you can save a lot money.
I know this sounds like something that can't be invented, but what would you say if a mashine like this would exist?
