Grumpydaddy

joined 1 year ago
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What is the stock market? in c/nostupidquestions@lemmy.world
[–] Grumpydaddy@lemmy.world 6 points 1 month ago

Stocks also represent a company's net asset value. So, unlike crypto, a shareholder would be compensated by the sale of a company's assets in the event of its liquidation. Crypto has no such safety net.

I'm tired of every game being live service in c/games@lemmy.world
[–] Grumpydaddy@lemmy.world 46 points 1 month ago (1 children)

I vote with my wallet. I don't buy games that have scummy conditions or requirements. There are too many other choices out there to justify supporting companies who treat their customers poorly.

A courts reporter wrote about a few trials. Then an AI decided he was actually the culprit. in c/technology@lemmy.world
30
how the heck does FM work,? (lemmy.world)
 

Kind of an ELI5, but I tune a radion into a specific frequency to listen to a station. If that frequency is constantly being modulated (changed), how is the radio not going in and out of tune? I expect it is finding a way to measure multiple frequencies around the tuned station and decodes the data from it's deviation from the tuned frequency?

Authy Users' Phone Numbers Compromised via Twilio API Vulnerability in c/cybersecurity@sh.itjust.works
[–] Grumpydaddy@lemmy.world 3 points 4 months ago (1 children)

So for common folk like myself, what do I need to do? I used Authy for a few sites. Can a bad actor pretending to be me now get access to those sites?

Windows updating just before thesis defense in c/linuxmemes@lemmy.world
[–] Grumpydaddy@lemmy.world 49 points 5 months ago (1 children)

Cool ceiling tile

Which movies have aged like fine wine? (either in their message or cinematography) in c/asklemmy@lemmy.world
[–] Grumpydaddy@lemmy.world 0 points 7 months ago

2001: A Space Odyssey still holds up pretty well both technically and narratively.

Have you ever been to a movie so terrible that you saw people leaving the theater? Which one was it? in c/movies@lemmy.world
[–] Grumpydaddy@lemmy.world 7 points 7 months ago

Both reading and watching The Shining really helped me appreciate what Flannigan pulled off in making Dr. Sleep. He kept all the lore and nostalgia of Kubrick's movie and also found a way to put back most of the King material that Kubrick had abandoned.

Labour economists see rising recession danger in the US in c/news@lemmy.world
[–] Grumpydaddy@lemmy.world 14 points 8 months ago (6 children)

MIT Professor Paul Samuelson’s famous quip, “the stock market has predicted nine out of the last five recessions”

How come running hard (especially when out of shape) makes your lungs feel like they are on fire? in c/nostupidquestions@lemmy.world
[–] Grumpydaddy@lemmy.world 34 points 8 months ago* (last edited 8 months ago) (4 children)

Acid buildup in muscle tissue. Here is an article that explains what is happening:

https://www.pfizer.com/news/articles/science_fact_or_science_fiction_lactic_acid_buildup_causes_muscle_fatigue_and_soreness

Esit: I originally said that your.muscles are creating waste chemicals quicker than your bloodstream can handle causing those bad chemicals build up locally. While this is true in a broader sense, I think it is more nuanced that that. Reading the article should give a better explaination

DC Theory: negative voltage in c/askelectronics@discuss.tchncs.de
[–] Grumpydaddy@lemmy.world 2 points 9 months ago (1 children)

There is a crude ASCII drawing to represent the circuit

DC Theory: negative voltage in c/askelectronics@discuss.tchncs.de
[–] Grumpydaddy@lemmy.world 2 points 9 months ago (1 children)

And a quick followup:

If the ground was moved to the T3 junction than the battery's negative terminal would be common to ground and the voltages values across all loads would go back to being positive in regards to the battery's negative terminal (T1 = 1000V, T2 = 333V, T3 = 0V) ?

11
DC Theory: negative voltage (lemmy.world)
 

I'm trying to understand what's happening in this circuit:

I------------------T1 (+333V)
I                 I
I                 R1(10K)
(pos)             I
1000V             I------------gnd (0V)
(neg)             I
I                 R2(10K)
I                 I
I                 IT2(-333V)
I                 I
I                 R3(10K)
I                 I
I-----------------IT3 (-666.7V)

I am learning basic DC theory from reading and sometimes I come across something I'd like to ask a question about, so:

  1. In the above circuit, without the ground, the voltage across all components would begin at 10V and finish at 0V. By adding a ground, I'm basically saying "here is 0V" and everything gets redefined in reference to that point and I end up with a 10 volt circuit with +3.33 as it's highest voltage and -6.667 as it's lowest.

  2. The electrons could care less, they still flow from the anode to the cathode of the battery under normal conditions, going from the highest potential to the lowest.

  3. This example was only used to demonstrate voltage dividers. It revolved around worker protection present in aluminum processing. Each machine is in series and mobile grounds are used nearest the machine a worker is using. I assume that this allows the worker to have the least exposure to electrical shock as they are also at ground potential?

I actually think working though these questions has cleared everything up, but please, comment on anything I got wrong.

Also, sorry about the crappy drawing, the autowrap in this editor really made things tough to format

Thanks!

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