John R. Southern

[Physics In History @PhysInHistory]

In the movie ‘Somewhere in Time’ (1980), a man travels back in time to meet a woman he fell in love with after seeing her portrait. He gives her a pocket watch that she had given him in the present, which he later realizes was the same pocket watch he had seen in the portrait. The pocket watch has no origin, as it was passed from the present to the past and back again.

In the TV series ‘Doctor Who,’ the Doctor receives a transcript of a conversation he will have in the future from Sally Sparrow, who got it from a DVD that the Doctor recorded in the past. The Doctor then reads the transcript into a camera in the past, which becomes the DVD that Sally finds in the present. The transcript has no origin, as it was created from itself.

In the book ‘A Journey Through Time’ by H.G. Tannhaus, which appears in the Netflix series Dark, the author writes about time travel and wormholes based on a copy of his own book that he received from a time traveler. The book has no origin, as it was written from itself.

The bootstrap paradox is a type of time travel paradox that occurs when an object, information, or person is sent back in time and becomes the cause of its own existence in the present. This creates a circular loop of causality, where the origin of the object, information, or person is unknown or self-created.

[John R. Southern @krunkwerke]

@JosuGoi1 @unclebobmartin Are you referring to public methods, for classes that you’ve implemented? Or are you referring to methods in classes that are being reused (and for which testing of their implementation is outside of the scope of what you should be testing)?

[John R. Southern @krunkwerke]

@JosuGoi1 @unclebobmartin If reading code is your only objective, then I can appreciate this position. However, if your objective is to write code that is *also* easily testable, then I think that that’s where you may run into trouble.

[Uncle Bob Martin @unclebobmartin]

One of the main complaints people seem to have about the Clean Code book is my advice to keep functions very small. In Java I prefer functions that are ~4-6 lines long. (Thats a preference, not a demand).

Why? Because this forces me to make each function about _one thing_ and give each a very descriptive name.

Over the years I have found this to be a very beneficial technique both for enhancing readability and for deriving good designs.

[Raymond Hettinger @raymondh]

#Python tip: Please read the modernized docs for sorting techniques (5 to 7 minutes). Let me know if you learned something new, if you see something that can be improved, or if I missed an essential update.

https://t.co/ce0myRgmw9

[John R. Southern @krunkwerke]

@RetroTechChris Which tool do you use for these tests?

[John R. Southern @krunkwerke]

@Alex_San @Scobleizer Have you ever been to a concert hall, where an orchestra was performing on the stage, and the pipe organ was located in a loft above them?

Also, in a concert hall, the acoustics of the space result in relfected sound coming from multiple directions.

[John R. Southern @krunkwerke]

@GoodTofuFriday Perhaps there's a cold solder joint, and it's merely self repairing?

[Todd Irvine @todd_irvine]

I took a ride out to West Island of Ontario Place to visit the trees to be cut down. 🧵

First this stunning willow. 3 stems with a combined diameter of 207cm! 20m wide crown and 15m tall.

[Olivia Chow @oliviachow]

The @fordnation gave his caucus MPPs (mostly men) a raise of over $16,600 per year but only $780 for the mostly women who works in education. You think his MPPs work harder than your kids childcare worker? #onted #39kIsNotEnough

[John R. Southern @krunkwerke]

@ConvoyEh @CheriDiNovo Another way to state this is: @CheriDiNovo chose to be concise, and place focus on the most salient details.

[John R. Southern @krunkwerke]

@FriendlyWire I saw the reply about the error being the mis-wired LED.

I'd also wondered in this is the type of breadboard that has the split power bus strips, requiring a jumper in the middle of each.

[John R. Southern @krunkwerke]

Is this legal, @311Toronto? The sidewalk has been blocked for months. There was a small portion of the curb lane that was usable (bikes and pedestrians). Now the fencing has engulfed that lane.

On Dundas West, just west of the intersection with Annette/Dupont/Old Weston.

[John R. Southern @krunkwerke]

@Nerdypants720 @TPSOperations Currently blocking traffic in the eastbound lane of Bloor West, at Palmerston. Headed toward Spadina.

[John R. Southern @krunkwerke]

As a @HondaCanada customer, I feel disappointed in the lackluster response to this software bug in the navigation systems of millions of their vehicles.

It's been 8.5 months, since the bug first affected vehicles.

https://t.co/H1YdjvvkAX

[John R. Southern @krunkwerke]

@robcruickshank I didn’t realise that there is even one that is still active and periodically tested.

https://t.co/RkXBdGzlEa

[City of Toronto 🇨🇦 @cityoftoronto]

Attention #Scarborough residents: Community sirens will be tested on Saturday, July 24 at approx 5 p.m.
The sirens will sound for up to 2 minutes followed by 5 minutes of silence and then the all-clear signal for one minute. See image for more details.
#TorontoEast #SirenAlert

[John R. Southern @krunkwerke]

@robcruickshank Is this the siren in Scarborough?

There are only a few remaining around Toronto. I’ll sometimes visit the one by Trinity Bellwoods.

https://t.co/SWQYLVRhcT

[GordonCleveland @gordcleveland]

Will Ontario's child care agreement with the federal government be a good one? I'm worried. Here's how to tell whether Ontario is on the right track (https://t.co/8LlCnBLO8p) or still stuck on a back road in second gear.
#childcarecanada #childcare #10adaychildcare
#cdnpoli

[John R. Southern @krunkwerke]

This crosswalk is dangerous for pedestrians, @311Toronto. There’s a utility pole that blocks the view of the crossing signal, heading northeast from Annette to Dupont/Old Weston.

The crossing signal needs to be moved.