Recent content by berkeman

Well, okay I guess. You probably see my point, though. One way to slice up the computations is to do the computations on different sets of frequency bands separately. But since you are doing cross-correlations between different frequency bands/channels that would not be a candidate. The only...

Thread closed for Mentor Review.

Thread is closed temporarily for Mentor review.

Can you say more about why you are doing cross-correlations between different frequency channels?

Welcome to PF. :smile:

Welcome to PF, Ken. :smile:

Upon further review, the thread is reopened for now.

Great reply, @TensorCalculus :smile: Their Profile/About page says they are in Turkey.

Thread is closed for Moderation.

Ah, got it. Well, I just checked our portable fan (which has flat blades) and indeed the dust accumulation is on the front of the fan, not the back. It must be due to impacting the air on the front side where the air is pushed away from the fan.

It's a forum bug, reference now deleted.

Cheaper fans use flat blades at an angle. Better fans use airfoils at an angle (like a propeller). Here is a good PF Insights article that may give you more of a feeling for how air moves around a fan/propeller and why the airflow over the back surface is slower/lower pressure (and may lead to...