

Here’s one more for "trains is to transportation what crabs are to evolution ’
Here’s one more for "trains is to transportation what crabs are to evolution ’
So what’s the bigger picture “why” behind this? Why is it so very important to Uber conservatives that Israel be unchallenged as they shamelessly transition from legitimate fury to indefensible carnage?
“systemic human resources roadblock removal”
I was going crazy going ‘shit, i KNOW i read this before, it cannot be a 2025 article…’
Vindication!
https://abc7ny.com/nurses-nurse-pregnant-nyu-winthrop-hospital-in-mineola/5235663/
What plastic duct? It’s a standard foil one, but had a break in a couple of spots and since we’re replacing it by a new one next week, we have a piece of tape on it… Am i referring to the wrong thing?
UPDATE thanks all for the comments, just a few clarifications and updates:
all electrical work is work-in-progress, we’re finishing it up tomorrow, it’s still an active worksite. The old outlet and old bx wiring is being removed, we’ll only have the newer wiring (and of course all outletd will be in their gangboxes and covers will be on)
the dryer vent will be changed and installed without sag when we finalize
the 4" abs drain connects to the old one with a rubber fernco gasket, those do require hose clamps and they’re up to code (though the top clamp could be straightened!)
the water lines are pex, they’re all good
we don’t have a choice but to push the water up with the washer pump - the drain evacuates to the city sewer around hip level in that basement
The worries for me are really the 90° out of the sump pump and the other 90° into the drain column, shouldn’t that be a downward Y? And the double S p-trap, is it creating some risk?
The top one, where the washer drain comes in? Or further down?
For the record he also connected the sump pump pipe like this, with a 90° - shouldn’t it be a downward Y instead?
This might actually be a good opportunity for an AI answer:
–
First, understand the basic principle you’re working with:
Shopping cart wheel locks respond to a specific RF (radio frequency) signal (typically around 7.8 kHz to 10 kHz for many systems, but it varies by brand).
In normal operation, the boundary wire emits this signal constantly.
The unlocking posts emit a different coded signal to reset the wheel.
So to design a portable device that could lock and unlock wheels manually anywhere, you would need:
You must figure out the exact frequencies and modulation patterns used by the cart system.
Different companies (like Gatekeeper Systems, Carttronics, etc.) use slightly different RF signatures.
Usually lock signal = basic broadcast (constant tone) Unlock signal = special modulated unlock code or sequence.
This might require:
A spectrum analyzer
Or reverse-engineering an existing unlock station.
The portable device needs:
A programmable low-frequency RF transmitter (around 8–10 kHz range, low power)
A microcontroller (Arduino, ESP32, etc.) to generate the right modulation if the signal is coded
An amplifier to make the signal strong enough to reach the cart wheels (they usually detect it within 3–10 feet)
Optionally:
Two modes: a “lock” mode (sending the boundary signal) and an “unlock” mode (sending the unlock code).
Low-frequency oscillator (to generate 7.8–10 kHz wave)
Microcontroller (to handle switching, coding)
Coil antenna (for strong near-field transmission — like a small induction coil)
Amplifier circuit (boost the signal so carts sense it a few meters away)
Battery pack (portable, rechargeable — say 12V lithium-ion)
Mode selector switch (Lock / Unlock)
Simple microcontroller code to:
Emit plain carrier signal = Lock mode
Emit modulated code = Unlock mode
Example (pseudo-Arduino code):
if (mode == LOCK) { generateContinuousTone(8kHz); } else if (mode == UNLOCK) { generateUnlockCode(); }
Matching signal format exactly: If the unlock signal is digitally modulated (like FSK or ASK), you must match the timing perfectly.
Power levels: Too much power could fry circuits or interfere with nearby electronics. Keeping it safe is key.
Legal considerations: Broadcasting radio signals, even low-power ones, can be restricted depending on the country.
Simple Concept Sketch:
[Portable RF Cart Lock/Unlock Device]
Size: About a large walkie-talkie
Two buttons: Lock / Unlock
Coil antenna: About 3–6 inches
Range: 1–3 meters effective
Display: Small LED indicators (Locking / Unlocking / Signal OK)
In short: You’re essentially building a portable invisible “fence” generator with two channels: a “keep away” signal (lock) and a “come back” signal (unlock).
Interesting thank you! Not yet the tiny no bells no whistles electric pickup I’m hoping for, but it’s nice to see Canadian alternatives for things i didn’t know we did!
I would add something about the minimum “decent roommate” amount of maintenance that the paying roommate still has to do, to avoid them gradually becoming more and more of an intentional slob, and treating the cleaning roommate like a servant
My exact thought! I wish a Canadian startup did exactly that, I’d buy one immediately
Wasn’t there a whole weird theory that toxoplasmosis was also driving a bunch of human behaviour?