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1:12 AM
Q: Stability and Control of an aircraft

caleb olojoWhy is the pitching moment coefficient of an airplane said to be constant about the aerodynamic centre of an aerofoil

The answer to this question is very simple. Namely: "Because the phrase 'aerodynamic center' means the point about which the pitching moment coefficient is constant."
But last time I posted a simple answer like that, I got 3 downvotes.
Heck, I'm posting it.
So, more specifically, someone on math.SE asked, "What does 0≠1 mean?"
I posted an answer explaining what 0≠1 means.
Someone else posted an answer explaining why the axiom 0≠1 is included in a certain list of axioms, but which said nothing at all about what 0≠1 means.
My answer got a score of -2, theirs got a score of 3.
So I edited the question to "Why is 0≠1 included in this list of algebraic axioms?"
Anyway, I don't know what lesson to learn from that. Apparently, the question had a secret meaning that was visible to everyone except me.
15 hours later…
4:09 PM
Q: Comment tag for bounty giver or post editor

ymb1I don't know if it's a missing feature, or a bug. But when someone offers a bounty on someone else's post, you cannot tag them in a comment using @. Same goes when someone edits a post that is not theirs and they don't leave a comment.

did they implement/fix it?
asked on meta's tavern, apparently one can but manually (no auto-complete), at least for editing
2 hours later…
6:33 PM
@TannerSwett many time I don't understand why answer are downvoted. Today I begin to ask for comment when a answer I think is OK (maybe not developed enough,but still OK) is downvoted withou comment. Maybe we should enforce comment when downvoting.
@ManuH that has been discussed so many times, and the official SE line is that it will never happen
It would drive negative behaviours, is the usual consensus
7:12 PM
posted on September 23, 2019

Replacement Pilot... Update on Jack's Flight Review... More on Airport IDs... ADS-B during GPS outage?... Expendables Airplanes... PIC vs. PIC discussion... Shoutout CFI Rich... 50th Anniversary of the Fan Jet 500. Uncontrolled Airspace Podcast Daily. Recorded September 18, 2019.


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