Hanno Rein

@hannorein
1,063 Followers
716 Following
913 Posts
#Astrophysics Professor at the University of #Toronto, Minor Planet 12249, #UTSC, #UofT, developer of the several #iOS apps, #pilot, #cycling, #climbing, #running, #Egyptology, #woodworking, #astrodon.
Websitehttps://hanno-rein.de
Exoplanet Apphttps://exoplanetapp.com
ORCIDhttps://orcid.org/0000-0003-1927-731X
GitHubhttps://github.com/hannorein
Show threadHanno Rein11h ago
LAST LECTURE! 🎉
Hanno Rein11h ago
In my quantum mechanics class, I often found myself having to make excuses for things non-relativistic quantum mechanics can't explain accurately. So in the last lecture today, I gave the students a taste of quantum field theory. I suspect that went a little over their heads but maybe it sparked some interest.
Hanno Rein1d ago
I certainly love a good source code leak!
Hanno Rein1d ago

RE: https://mastodon.social/@iceoutbot/116325135641960846

If you're like me and anxiously awaiting the canoeing season, I've got some good news: I brought my #Algonquin @iceoutbot back to life! Follow it for hourly updates on the ice status of lakes in Algonquin Park. #ontario #onstorm

(Sorry to those south of the border! I don't have a bot to get your ICE out.)

Show threadHanno Rein2d ago
By the way, the complexity of a simple switch is quite something...
Hanno Rein2d ago

I just gave an interview with a journalist raising concerns about Kessler Syndrom and complaining about megaconstellations in general. And less than 5 minutes later, I see a post about a starlink satellite being involved in a "fragment creation event".

@sundogplanets

Hanno Rein2d ago
Another small victory! I've successfully replaced a broken switch in my car. I had to take apart the entire door panel for that. Thank you random person who posted a video on how to do that on youtube. And thank you aliexpress for sending me a very cheap spare part for my 17 year old car.
Show threadHanno Rein2d ago
OMG I think it actually works!!
Show threadHanno Rein2d ago

Small progress. I actually seem to be able to register via TCP. But then the server closes the connection but the phone expects the TCP connect to remain open because that's what the Cisco gear does. I can't seem to get to connect via UDP. Probably because of my ISP's stupid router. So the idea right now is to setup a simple asterisk server locally to handle this mismatch.

(PSA: I have no idea what I'm doing!)

Hanno Rein3d ago
Long shot: Can anyone here help me with configuring a Cisco 7821 phone so I can connect to a non-Cisco SIP provider? It seems that this is not officially supported but kind of works for some people with the specific model I have. But I've failed adapting any of the XML configuration files that I found online. And the console logs from the phone are not really helpful to a non-expert. #voip #cisco #sip