For the Pink Floyd fans: For the 50th anniversary of their album The Dark Side of the Moon, they're doing Planetarium shows of their album on multiple locations in Europe and North America: https://www.pinkfloyd.com/tdsotm50/planetarium-shows/
The first planetarium projector was unveiled 100 years ago
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Re: The first planetarium projector was unveiled 100 years ago
#12I love planetariums but it seems like most of the shows now are just films projects spherical screen. I’d really love to see one using an old-school star projector but it seems like they’re very hard to find now.
Re: The first planetarium projector was unveiled 100 years ago
#13I lived the first 25 years of my life without going to a planetarium. I even experienced VR before having been to one. My first visit was a mind-blowing experience that felt akin to an acid trip. It wasn't just the night sky being projected but also a documentary that leveraged the projection medium. If you haven't been to one, I'd certainly recommend it.
I went to one with school as a kid, and this projector in the middle was the most science fiction looking thing I'd ever seen in real life It probably was one like this: https://upload.wikimedia.org/wikipedia/commons/b/bb/ZeissPla...
BH Photo has a nice page on planetarium projection systems. They are eye-wateringly expensive.
https://www.bhphotovideo.com/explora/photography/features/pl...?
Re: The first planetarium projector was unveiled 100 years ago
#14It was very weird to see germany's president in the thumbnail.
Re: The first planetarium projector was unveiled 100 years ago
#15For the Pink Floyd fans: For the 50th anniversary of their album The Dark Side of the Moon, they're doing Planetarium shows of their album on multiple locations in Europe and North America: https://www.pinkfloyd.com/tdsotm50/planetarium-shows/
These are good traditions. I hope I’m alive to see the 100th anniversary of the first Pink Floyd laser light show.
I heard about it from previous generations, I’m not that old! Says me ;)
Re: The first planetarium projector was unveiled 100 years ago
#16I love planetariums but it seems like most of the shows now are just films projects spherical screen. I’d really love to see one using an old-school star projector but it seems like they’re very hard to find now.
The word I love is "star ball". My local museum has one of these. They're apparently difficult for upkeep, since they've been produced such low volume. There's only a handful of specialists who travel around the country servicing them.
Re: The first planetarium projector was unveiled 100 years ago
#17It's pronounced Plane'arium. The 't' is silent.
So glad to see this cited.
Re: The first planetarium projector was unveiled 100 years ago
#18Earlier quoted context omitted.
I went to one with school as a kid, and this projector in the middle was the most science fiction looking thing I'd ever seen in real life It probably was one like this: https://upload.wikimedia.org/wikipedia/commons/b/bb/ZeissPla...
BH Photo has a nice page on planetarium projection systems. They are eye-wateringly expensive. https://www.bhphotovideo.com/explora/photography/features/pl... ?
All I see on the Zeiss website for price is a "contact" button. How expensive are we talking about? :)
Re: The first planetarium projector was unveiled 100 years ago
#19I was once the CTO for a small educational startup/company that was trying to make small (10ish people) portable planetariums. The goal was to install them in schools or other children/family friendly areas and serve the edu-tainment market. It's actually quite interesting how many design and technical problems we had to solve to make the planetarium a "breathtaking" experience. Some interesting ones. * Projection op…
"* Air change. I found out that commercial spaces (concert halls or airplanes etc) change the entire air several times an hour. " With good reason - spaces that don't are terribly uncomfortable within ten minutes.
It sound's a bit odd this is even notable.
This is the minimum standard for any new construction commercial/institutional building according to recent building codes in Ontario, and probably many other jurisdictions.
Maybe it's unusual for these building code standards to actually be enforced without special exemptions where the writer lives?
Re: The first planetarium projector was unveiled 100 years ago
#20Earlier quoted context omitted.
"* Air change. I found out that commercial spaces (concert halls or airplanes etc) change the entire air several times an hour. " With good reason - spaces that don't are terribly uncomfortable within ten minutes.
It sound's a bit odd this is even notable. This is the minimum standard for any new construction commercial/institutional building according to recent building codes in Ontario, and probably many other jurisdictions. Maybe it's unusual for these building code standards to actually be enforced without special exemptions where the writer lives?
I was in a developing country where such things are rarely if ever enforced by law. Though, because many HVAC systems are imported, they automatically satisfy reasonable standards.
Our company had ethics enough to try and enforce such reasonable standards without any external pressure.