What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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I will be looking for beta testers soon for my revival of Inner Ear. It’s an ear training exercise tool mostly focused on solfège. While general “I would simply like to help, TJ” is appreciated I would also very much like to get some people who are interested in improving their ear and making exercises and all of that. iOS / iPad support first with macOS hopefully soon after

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Der FC St. Pauli engagiert sich seit Jahren gegen Rassismus & Diskriminierung.
 
Jetzt zeigte St. Paulis Präsident Oke Göttlich vor dem Heimspiel gegen den VFB Stuttgart in einem Sky-Interview einen Sticker mit klarer Botschaft gegen Sackwurst Bernd:

"Björn Höcke ist 1 Nazi!"

Aber psssst, nicht teilen!
Das mag der Bernd not. 🙃

Der Trainer hält einen runden, gelben Aufkleber in die Kamera, auf dem steht: Björn Höcke ist ein Nazi.
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Dr. Mike Ryan (WHO):
»We are breaking the bodies and the minds of the children of .

We are starving the children of Gaza, because if we don't do something about it, we are complicit in what is happening before of our very eyes.

We are complices, we are causing this, you, us, and everyone who does nothing about it.«

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Food

Lumch. Sardine bowl. Sardines seasoned with soy sauce and sesame oil. Rice. Green onions. Cucumbers, Romaine lettuce. Kimchi.

If it seems yucky to you, you're in luck, because I didn't make any for you. 😜

Yes, that's not a typo. I wrote "lumch". L - U - M - C - H. I'm an old man and that's me trying to be cool.

No, older. Older than that. Older. Yeah, that old.

On a white kitchen counter. From the left. On a black glass induction cooktop, a stainless steel pot. A bit of rice can barely be seen in it. 

A bowl. Inside, and blue and white fish pattern can be seen. 

A jar of "mother in law's" Kimchi. 

A glass bowl with a spoon. In it can be seen some slightly mashed sardine.

A checkerboard patterned wood cutting board. To the left rests a bamboo spatula or paddle. Then some chopped green onions. Some sliced cucumbers. Thinly chiffonaded romaine lettuce. A cleaver.
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https://olive088861.studio.site/1 nobi でこういうことが起きないようになにか考えているかというとあんまり考えていないんだけど、権力差が生じないように意識している気はする。ただそういうのを、個人のバランス感覚だけでやっていくのもいいわけではないんだろうなぁ。人がどうやって間違うのかはいつもわからないし自分がトチ狂うことなんていくらでもあるだろうし。

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How much total drag does my truck create while moving down the highway?

Measure it indirectly!

Run cellphone GPS logger at 1-second interval. Get truck up to speed on flat section of highway, put transmission in neutral, foot off the gas. Let the truck slow down 30 - 45 seconds to get a decent number of data points. Make another data run on same section, but opposite direction to average out effects of wind and any slope.

Import GPS log into spreadsheet.

A linear fit gives you a straight line slope...good enough to determine deceleration...then apply that to F = m * a (you need to know truck's weight) Now you know total drag force at one speed.

Total drag is air resistance (varies with square of speed) plus rolling friction (assume it's constant). OK, do a quadratic/polynomial fit. Now you know rolling friction. Subtract from total drag, and you can determine area-drag (Cd * frontal area) of your truck.

(1 of 2)

Linear fit of GPS log data...to determine deceleration, to determine total drag force of truck at a given speed.Quadratic/polynomial fit of same data. Now you can determine the rolling friction (a constant value), and the air resistance (varies with speed squared)...and then you can determine the area-drag (Coefficient of drag multiplied by frontal area) of your vehicle.
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