What is the newest installment of 'Random Thoughts' on Physics Forums?

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The discussion revolves around frustrations with current documentary programming, particularly criticizing the History Channel's focus on sensational topics like time travel conspiracies instead of real historical content. Participants express disappointment over National Geographic's sale to Fox, fearing a decline in quality programming. The conversation shifts to lighter topics, including humorous anecdotes about everyday life, such as a malfunctioning kitchen fan discovered to be blocked by installation instructions. There are also discussions about the challenges of understanding various dialects in Belgium, the complexities of language, and personal experiences with weather and housing in California. Members share their thoughts on food, including a peculiar dish of zucchini pancakes served with strawberry yogurt, and delve into mathematical concepts related to sandwich cutting and the properties of numbers. The thread captures a blend of serious commentary and lighthearted banter, reflecting a diverse range of interests and perspectives among participants.
  • #10,051
Borg said:
Three days working on a bug in some code I was trying to implement. Finally resolved it by removing a single asterisk. ?:)
"Skooshed a spider," huh?
 
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  • #10,052
Bystander said:
"Skooshed a spider," huh?
Something like that.

Now I'm chasing a new bug that is likely due to removing the asterisk... sigh.
 
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  • #10,053
Borg said:
Something like that.

Now I'm chasing a new bug that is likely due to removing the asterisk... sigh.
To the tune of "Ten Green Bottles":
Ten little bugs, hiding in the code.
Ten little bugs, hiding in the code.
Fix one bug,
And re-compile the lot.
Eleven little bugs, hiding in the code.
 
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  • #10,054
The COVID19 deniers seem to be re-emerging on YouTube. Admittedly I should just watch Dr Becky and Sabine and stay away from these comments but hey.
Anyway I have been challenged to debate and I have accepted. Perhaps it was a bluff but let's see.
I am actually interested on how these people think, how did they get to the point where they distrust the medical/ Science community so much.
 
  • #10,055
There is still hope ...

_nc_ohc=O7OwqmP_OYQAX-k4AfC&_nc_ht=scontent-muc2-1.jpg
 
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  • #10,057
Today, 9.11. (9th of Nov.), is the most frightening day of the year for several reasons in our history (1848,1918,1923,1938,1989). Strange to see the association due to the notation.
 
  • #10,058
fresh_42 said:
Today, 9.11. (9th of Nov.), is the most frightening day of the year for several reasons in our history (1848,1918,1923,1938,1989). Strange to see the association due to the notation.
It's a " mirror day", like all days where the day of the month is less than 12, i e., the swap mm/dd <-->dd/mm produces a legitimate date. Here,
9/11 <-->11/9.
 
  • #10,059
WWGD said:
It's a " mirror day", like all days where the day of the month is less than 12, i e., the swap mm/dd <-->dd/mm produces a legitimate date. Here,
9/11 <-->11/9.
Sure, but both days mark historical events if written in the local notation. That's eerie.
 
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  • #10,060
But why do 5.11 tactical pants and short have that strong strap in the back? What is it's purpose?

1667958028790.png


Turns out the 5.11 brand of tactical gear started with mountain climbing (hence the 5.11 climb difficulty rating), and the strong strap in the back was for holding carabiners on the climbs. It's not a reference to 911 emergency stuff...

http://68.media.tumblr.com/tumblr_m6qcf9ViQ41qcb5h6.jpg
 
  • #10,061
I've been watching youtube videos of people describing extreme and nightmarish psychedelic experiences.

One person claimed, in their drug induced visions, to have watched humans evolve and progress from apes to the present day and beyond. First opposable thumbs, then, fire, metallurgy, industrialization, the internet, and eventually colonization of space. Anyway, in his vision, some time after space colonization, Earth was obliterated by nuclear war. At that point, the youtube algorithm decided it was a good time to show some commercials. Probably, it thinks the heaviness of Earth being depicted as being destroyed is a good setting to make a sell. So, the first commercial is for some product sold by a company which happens to share the same name as me, and the commercial ends by saying my name. Then a second commercial starts and the first words are "This is the future you created".

So to summarize, the world is depicted as being destroyed and then I get, "<My name>. This is the future you created." Yeah, so I guess I understand the algorithm's logic. Heavy moment in the content, make it personal (how about a commercial with my name in it), make it relatable (how about a commercial that shares keywords with the title). No sophistication is required in the explanation. It's just good psychology to use association and leverage powerful sentiment, I guess. But I have to admit, if I were some other person who were more gullible, knew less about technology, or who were otherwise susceptible, I might be sitting here thinking I was a real life anti-John Conner or something. Youtube, or the universe, or what have you, did kind of blame me for destroying Earth, after all.

Instead, I just felt worry. Because, the world is full of people who are susceptible to this kind of thing. And, probably, the core audience of these videos (psychedelic experience videos) are some of the more susceptible. Other ads I've seen on Youtube lately include an ad for a secret bible verse which the government is covering up, because it contains the key to having your prayers be answered, and if all prayers were answered, then the pharmaceutical industry wouldn't make money, because nobody would be sick. Another ad I saw claimed that there was an impending truly apocalyptic attack on American patriots by the left.

So, anyways, it scares me a little the way algorithms seems to try to get personal, feed into people's fears, and help manipulators and charlatans target the vulnerable, etc.
 
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  • #10,062
Jarvis323 said:
I've been watching youtube videos of people describing extreme and nightmarish psychedelic experiences.
It sounds like you should stop doing that. Just sayin'...
 
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  • #10,063
I don't know where my daughter finds the time; working to pay the bills, school homework & studying, and airplane flying.
 
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  • #10,064
Gosh, y'all. I hope you have been well.

E: Oh look, I broke my hiatus and my comment count made the devil's number :devil:
 
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  • #10,065
Enigman said:
Gosh, y'all. I hope you have been well.

E: Oh look, I broke my hiatus and my comment count made the devil's number :devil:
Make sure you put a cast on it until it heals ;).
 
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  • #10,066
I cast a heal, on the broken seal,
But a string cut, cannot be whole,
Except with a knot.
 
  • #10,068
Kind of weird; barely heard a thing about the world soccer cup.
 
  • #10,069
WWGD said:
Kind of weird; barely heard a thing about the world soccer cup.
How is that weird? It is the men's championship, and thus irrelevant in the US. But your girls have beaten ours in a friendly match.

The question of whether and how to boycott the championship is all around here.

Don't be sad, Here is some news for you: Tom Brady is the only player who has won regular games in three different countries outside the US.
 
  • #10,070
How/why are the men's championship irrelevant?
 
  • #10,071
WWGD said:
How/why are the men's championship irrelevant?
Because they are all male, and neither your women nor your Latin population is allowed to play. :-p

Edit: It is for the same reason as nobody here talked about the "World" series, although I saw some scenes on tv.
 
  • #10,072
Ah, I didn't notice they didnt qualify.
 
  • #10,073
WWGD said:
Ah, I didn't notice they didnt qualify.
They did qualify. Group B with England, Wales, and Iran.
 
  • #10,074
fresh_42 said:
They did qualify. Group B with England, Wales, and Iran.
Then I don't get your initial point.
 
  • #10,075
WWGD said:
Then I don't get your initial point.
You have a world-class women's team but a third-class men's team.
 
  • #10,076
fresh_42 said:
You have a world-class women's team but a third-class men's team.
Ah, ok. Still, iirc, the women's team was beat by a men's high school team.
 
  • #10,077
WWGD said:
Kind of weird; barely heard a thing about the world soccer cup.
Now, lets get one thing clear
1668493701367.jpeg
 
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  • #10,078
WWGD said:
Ah, ok. Still, iirc, the women's team was beat by a men's high school team.
That's fairly routine, I think. Men (even adolescents) are bigger and stronger than women, and there are limits to what advantages you can overcome with skill.
 
  • #10,079
Ibix said:
That's fairly routine, I think. Men (even adolescents) are bigger and stronger than women, and there are limits to what advantages you can overcome with skill.
Same reason there are weight classes in boxing and martial arts.
 
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  • #10,080
Too much generation, nowhere to send the surplus.
https://www.msn.com/en-us/money/mar...ff-from-national-electricity-grid/ar-AA146XXm

Wind farms and rooftop solar installations could be switched off in the coming days to protect South Australia's energy grid, with experts warning of the risk of more blackouts following the weekend's extreme weather.

The state remains cut off from the national electricity market after key infrastructure was toppled in the state's east.
High winds during Sunday night toppled a tower in the South Australia-Victoria Interconnect.
 
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  • #10,083
Astronuc said:
AP News reports Russian missiles crossed into Poland killing two people!
https://apnews.com/article/russia-ukraine-war-zelenskyy-kherson-9202c032cf3a5c22761ee71b52ff9d52

A large number of missiles strike civilian infrastructure in Ukraine.
This was more or less bound to happen at some point. The big question is what will happen next. Poland is a member of NATO and will not be happy to have their own citizens killed in their own territory by Russian missiles.
 
  • #10,084
How do you explain to a high-school kid the meaning of " ##x^2+1## has no Real solution, but## z^2+1 ##has a Complex solution", without using heavy machinery like Field extensions?
 
  • #10,085
WWGD said:
How do you explain to a high-school kid the meaning of " ##x^2+1## has no Real solution, but## z^2+1 ##has a Complex solution", without using heavy machinery like Field extensions?
Does one mean ## x^2+1 = 0 ##? I thought that was when ## x = i ##, which was explained when I first learned about complex number, probably in high school.

And then more generally, ## z = x + iy ##
 
  • #10,086
WWGD said:
How do you explain to a high-school kid the meaning of " ##x^2+1## has no Real solution, but## z^2+1 ##has a Complex solution", without using heavy machinery like Field extensions?
Riemann sphere?
 
  • #10,087
Astronuc said:
Does one mean ## x^2+1 = 0 ##? I thought that was when ## x = i ##, which was explained when I first learned about complex number, probably in high school.
Yes, I meant ##x^2+1=0##. But appealing to Complex numbers alone seems not tobe satisfying. Not sure what would be " Natural "to them.
 
  • #10,088
WWGD said:
Yes, I meant ##x^2+1=0##. But appealing to Complex numbers alone seems not tobe satisfying. Not sure what would be " Natural "to them.
Not too many kids are ready for fields and n-dimensions in high school, and many don't get it even at university. I've met very few who could understand abstract algebra (incl. groups, rings, and fields) or complex analysis.
 
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  • #10,089
I don't see what more you can do than have them convince themselves that if there were a solution, its square would have to equal ##-1##. Then have them convince themselves there is no such real number. It isn't going to cook up all the beautiful structure of complex analysis but it will get the idea of something more than the reals in their heads.
 
  • #10,090
Haborix said:
I don't see what more you can do than have them convince themselves that if there were a solution, its square would have to equal ##-1##. Then have them convince themselves there is no such real number. It isn't going to cook up all the beautiful structure of complex analysis but it will get the idea of something more than the reals in their heads.
Again, the Riemann sphere provides an alternative. Draw the parabola on a sheet of paper
1668555551356.png

and clue all four corners such that we get a sphere. Extending the parabola on the sphere result in two intersections of the ##x##-axis that weren't there before.

At least, I think this would work.
 
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  • #10,091
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  • #10,092
Astronuc said:
Why Train Tickets Are so Expensive in the U.S.
https://news.yahoo.com/why-train-tickets-expensive-u-220000637.html

It's the market and the particular business. How to make it better. Transportation systems are capital intensive and require substantial maintenance.
As I understand, population density in most of the US makes it hard to break into the black. That's outside of a few regions like the NE corridor.
 
  • #10,093
WWGD said:
As I understand, population density in most of the US makes it hard to break into the black. That's outside of a few regions like the NE corridor.
Population density and utilization are important factors. In the case of the Northeast Corridor, Amtrak, more or less owns, or at least controls the track. Outside of the NEC, particularly for inter-city trains, Amtrak leases access to the rails. Amtrak, of course, took over the rail passenger service from the railroads that traditionally provided the service, as it became unprofitable. City and regional organizations took over much of the commuter rail service, and for some regions, states and local governments subsidize Amtrak.

Part of the revenue from passenger service came from shipping mail, which subsequently went to trucks and airlines, and the loss of mail revenue made most passenger trains unprofitable.

The challenge is how to make Amtrak profitable, and that is quite a challenge.

I have used Amtrak to travel to Washington DC, then use the DC Metro to get around. I found it more or less affordable, since I don't need to drive or fly, and even flying requires driving to the airport, waiting, then flying. From Washington DC airports, Washington National (Reagan) or Dulles, one can ride a DC Metro train. For me by myself, it is practical to take the train (Amtrak), but with multiple people, it's perhaps more practical to drive, depending on where in DC, and now long, and how many others.
 
  • #10,094
Boudica.
 
  • #10,095
Universal problem for coaches:

Screenshot 2022-11-17 at 8.03.34 AM.png
 
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  • #10,096
Ever wonder how non-moving plants get spread around so much?
 
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  • #10,097
Really nice short video that came into my Facebook feed today:

 
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  • #10,098
Chichester: Care home resident, 84, returns to school for physics GCSE
https://www.bbc.com/news/uk-england-sussex-63735319

An 84-year-old care home resident who failed his physics exam five times has returned to school after 66 years to fulfil a dream to complete his secondary education.

Ernie Puffett has returned to class to take weekly physics lessons at Chichester College in West Sussex.

He said he would be "elated" if he passed GCSE physics next summer.

College principal Helen Loftus said there were "so many benefits" to having students of all ages in the classroom.
 
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  • #10,099
  • #10,100
My workflow for writing reports/articles in anything other than LaTeX is absolute trash.
 

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