- You hire caring direct reportees.
- Nah, you'll get yelled at if bosses solution you have implemented brings further trouble. Mostly for not fixing it for them.
- Hmm, sounds like the spores must have come from the outside. Otherwise he'd be saying his colleague has contaminated the building with improperly stored fungal colonies and he himself let those spores contaminate his lab. So yeah, definitely from the outside.
- It does. There is an implied expectation that the recipient will will not be selfish. They can pay it back, pay it forward, possibly later when they can afford it, etc., but they are expected not to be selfish and also give someone something eventually.
- https://en.wikipedia.org/wiki/Frame_rate_control
Your screen likely uses dithering to produce 1-2 LSBs of each color channel of this piece of graphics right now.
- Physics.
- It's not cheap for streaming. It's harder to compress and is lost in the process. The video codec is a smart low pass filter.
- Quantize to 16 bits.
- Because, like most of the population in the West, HN readers are not actually liberals but rather centrists, which means they lean roughly equally conservative, liberal and socialist on the political triangle - on average.
Sometimes you have to trade personal liberties (makes liberals sad) and/or privileges (makes conservatives sad) to obtain better societal outcomes, i.e. mandatory vaccination or minimum wage. Those are socialist policies.
And since the major media and thus our shared social space is heavily anti-socialist (qui bono?), everyone is closeted and tries extremely hard to justify socialist policies as liberalism, which is not shunned. Hence people in the US now perceive them as closer or even "allied".
- You would be wrong, then.
What is the challenge in scope design is that you need to protect the ADC and often user's life!
So the scope has 1Mohm || 15pF input impedance. You need to buffer it. So you first have to attenuate the signal by tapping this input impedance e.g. at 1/10, attenuating the signal. Then you selectively boost it back up for the ADC.
Or you selectively tap it at different ratios.
In any case, you have to protect whatever there is after the tap(s) by diodes that inherently bring parasitic capacitance.
Some scopes avoid expensive buffer ICs and go with split DC path (with gain) using opamp and then AC path (with gain) using e.g. JFET and BJT RF amps and combine those later.
The whole path from input to ADC must have flat frequency response in both magnitude and phase on all gain settings. This is non-trivial, especially with split DC/AC paths.
Sure, HMCAD ADC series help immensely nowadays with their builtin gain, but you still have to give them something flat to digitize as they output 8b streams and thus you won't be able to "fix it up digitally".
And then you also have to be able to inject bias to move the signal up/down.
And some scopes now can toggle between this and just 50 ohm impedance.
So, yeah, it's kinda non-trivial to condition signal somewhere between millivolts and mains to get to the ADC safely.
- Hey, you can also arrange 2 GPIO pins in 1st order sigma delta topology with two external resistors, a capacitor and disabled hysteresis.
With RP2040 (and an LDO for supply), using two such channels for pseudo differential measurement (the second one just tracks threshold noise) I typically obtain 16 ENOB at 1 kHz, more at DC.
It is critical to avoid any periodic activity on the chip, though. Putting cores to sleep and then waking them up again causes huge spurs. One has to e.g. sleep for random intervals to spread them around. Same with flash. USB can be used, it's noise doesn't normally exceed -100 dB for me.
Fun stuff!
PS: I have not tested DC accuracy. One would likely use a channel with reference and hope that GPIOs are well matched. Could be used to e.g. sense CC lines on USB or analog joysticks and other non-critical, low accuracy stuff.
- The only reason for your high taxes and poor living standard is that some boomers have too much cash.
So they buy luxury apartments, outbidding you for construction companies capacity. Or they buy €20M luxury cars from limited 100-item series, outbidding state for engineers that could be designing next generation public transportation.
Public sector has been bled almost to death by regressive taxation, you bear nearly all of the tax burden so that a geezer who lived through nineties free-for-all can cope with his second midlife crisis while you struggle to get even a small apartment with ever-expanding commute times as you are forced outside of the city center.
Just. Tax. The. Rich. Geezer. More.
Seriously. If you've talked to some of them, they are not "titans of the industry", they are mostly greedy, average inteligence people that got lucky. No political nor economical nor cultural awareness. Half of them binge Russia fake news and/or Bloomberg and that's it.
God, some of those sick fucks even refuse to pay alimony despite owning huge companies. They would rather invent crazy schemes to hide their ownership and claim $10,000/y earnings than to take care of their kids. And they pay jackshit in taxes.
Not joking: https://www.seznamzpravy.cz/clanek/domaci-kauzy-beru-20-tisi...
- Most people wouldn't vote or participate in this investment craze. Maybe we shouldn't let unelected lucky nobodies decide how we invest our time for us.
- What crime? The system is working as designed. /i
- ADHD is nothing like this. After returning from dayjob, you spend until past midnight on your pet project. For months. And then simply abandon it without a second thought.
- There is a difference between grabbing salty string cheese, a handful of cherry tomatoes and cashew nuts and literally eating them while standing in front of the fridge vs. actually making a breakfast and sitting down with it like a "human".
- Yeah. The way we run our countries is idiotic. Zero resilience. First concern after floods is getting back to job, even before all the water is drained and mud cleaned, because working people live paycheck to paycheck and so on.
Businesses try to keep minimum stock. Single disruption in integrated circuit supply disables whole industries. And so on.
Capitalism is incompatible with resiliency.
- Sorry, but Russia is a credible threat that keeps killing people in Ukraine and threatens going nuclear.
China is betting on us rather pivoting than engaging with Russian army. If we seem tough enough, we call it.
We can then also negotiate better rate for the US protection racket, becauss the US fuckers decided to more than double the rate recently and we are unhappy about that. Long term we will rearm ourselves on our own terms.
- Denmark is exposed via sea and practically neighbors with Poland that is already being probed by Russian military. People I know are volunteering for army training in Czechia and reportedly the number of such volunteers is rising.
Some are genuine. People who went into debt, with health issue that prevented them from ever repaying it, fleeing from families so as not to burden them...
Smugglers who were found out, left with an unpayable amount of debt while the politicians that used to protect them went without punishment.