The forum discussion revolves around the latest installment of the "Random Thoughts" thread on Physics Forums, highlighting various topics including critiques of documentary programming on the History Channel and National Geographic's recent ownership change. Participants express concerns about the quality of content in documentaries and share personal anecdotes, such as a humorous incident involving a clogged kitchen extractor fan. The conversation also touches on mathematical discussions regarding prime numbers and cultural observations about societal norms and language use.
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This has be used as an anti-theft strategy.WWGD said:
How is turning a key - that is already in - more complicated than turning a deadbolt?pinball1970 said:
Key can break off. Or it could be the wrong key...jack action said:
Yes sounds simple enough but when the place is hot full of smoke, no vision, you do not want to be grasping for a small key.jack action said:
Exists. Not an app, but I know at least two parking lots with according traffic lights: green for available slots, and red for occupied sections.WWGD said:
It would be great if it could be applied city-wide. I'd heard one of the main sources of traffic in L.A was cars going about looking for parking spaces.fresh_42 said:
Wonder if it uses some sensors or just basic counting. If you know you have n spots, you can subtract 1 for every ticket issued by the machine,and add 1 each time someone leaves. Then you get green when ##n\geq 1 ##, and red for ##n=0##.fresh_42 said:
Those I know use simple counting mechanisms, pre-AI, and pre-camera detection. E.g. the parking lot at the airport has a ticket machine with a boom gate for every 60 cars or so per parking section. It counts. You can see free and occupied sections on your way. I wonder how the one at the university hospital works. It has lights on every floor but only a single boom gate at the entrance. But I can't remember having seen cameras.WWGD said:
Ah! Sensors that is!Borg said:
Thing is, if it's a parking lot giving tickets, if there's only one spot available, it may still allow two cars in, one will end up without a spot.Borg said:
There is indeed an app for that. I don't know if it got past the Beta testing stage, but it has been worked on as a commercial application. I'll see if I can find it...WWGD said:
Thank you. It brings to mind an old post about the difference between electric and electronic, the latter involving a control system, IIRC/IIUC.berkeman said:
Nice you have been here the whole time.LCSphysicist said:
You may be referring to @WannabeNewtonLCSphysicist said:
Actually, I have remembered the username. Ethotepi? Something like that. The users you mentioned aren't near my age, but i do remember the first one.WWGD said:
The ones I mentioned join in the 2000-2010 era, and were active through around 2018. Notice PF was started by Greg B in 2001.LCSphysicist said:
Probably Etothepi (E to the pi)?LCSphysicist said:
He replied to my e-mail and says he is doing fine and thanks for the concern. He has found a new passion at some specialized websites, hence the reduced participation here at PF.gmax137 said:
Interesting euphemismberkeman said:
No, no, no. Not *that* kind of website... Sheesh!Frabjous said:Interesting euphemism