The middle school near my house is sort of like this, not truly parabolic but the side facing south has three highly reflective glass faces at slightly odd angles relative to each other, just a few degrees each. It is insane how much heat even this produces in the morning if you’re standing in the right place. In winter when we have snow, there’s always a nice green bare patch in this spot.
It once happened with an entire building. And not the way that it sounds.
Turns out if you make a building a giant parabolic reflector, it’ll reflect sunlight and gently melt a few cars.
The middle school near my house is sort of like this, not truly parabolic but the side facing south has three highly reflective glass faces at slightly odd angles relative to each other, just a few degrees each. It is insane how much heat even this produces in the morning if you’re standing in the right place. In winter when we have snow, there’s always a nice green bare patch in this spot.