3 ms·
It is an incorrect use of what was already a flawed metaphor. Pressure is isotropic. Directed pressure makes no sense, like all other fluid analogies in unrelat
by jeffbee 5mo ago
It is an incorrect use of what was already a flawed metaphor. Pressure is isotropic. Directed pressure makes no sense, like all other fluid analogies in unrelated fields of engineering.
- brookst 5mo agoWait so cross ventilation, where a breeze will flow through a house if windows are open on opposite sides at a much greater rate than if windows are only open on the upwind side… isn’t really a thing?
- pcstl 4mo agoAir moves from regions of high pressure to regions of low pressure. Pressure itself does not have a direction.
- marcosdumay 5mo agoThe act of "making pressure" means applying a force and is completely directional.
- DoctorOetker 5mo agoso this is about lower or upper back pressure?
- bmm6o 5mo agoI took the analogy to be about the location of the pressure and not the direction. If you allow pressure to build on the input pipe when you can't accept more, the component that is upstream in the flow is able to observe that and respond. Maybe the difference is I envisioned a series of pipes and not a single one.