this post was submitted on 09 Mar 2025
129 points (97.8% liked)
Canada
8550 readers
2799 users here now
What's going on Canada?
Related Communities
π Meta
πΊοΈ Provinces / Territories
- Alberta
- British Columbia
- Manitoba
- New Brunswick
- Newfoundland and Labrador
- Northwest Territories
- Nova Scotia
- Nunavut
- Ontario
- Prince Edward Island
- Quebec
- Saskatchewan
- Yukon
ποΈ Cities / Local Communities
- Calgary (AB)
- Edmonton (AB)
- Greater Sudbury (ON)
- Guelph (ON)
- Halifax (NS)
- Hamilton (ON)
- Kootenays (BC)
- London (ON)
- Mississauga (ON)
- Montreal (QC)
- Nanaimo (BC)
- Oceanside (BC)
- Ottawa (ON)
- Port Alberni (BC)
- Regina (SK)
- Saskatoon (SK)
- Thunder Bay (ON)
- Toronto (ON)
- Vancouver (BC)
- Vancouver Island (BC)
- Victoria (BC)
- Waterloo (ON)
- Windsor (ON)
- Winnipeg (MB)
Sorted alphabetically by city name.
π Sports
Hockey
- Main: c/Hockey
- Calgary Flames
- Edmonton Oilers
- MontrΓ©al Canadiens
- Ottawa Senators
- Toronto Maple Leafs
- Vancouver Canucks
- Winnipeg Jets
Football (NFL): incomplete
Football (CFL): incomplete
Baseball
Basketball
Soccer
- Main: /c/CanadaSoccer
- Toronto FC
π» Schools / Universities
- BC | UBC (U of British Columbia)
- BC | SFU (Simon Fraser U)
- BC | VIU (Vancouver Island U)
- BC | TWU (Trinity Western U)
- ON | UofT (U of Toronto)
- ON | UWO (U of Western Ontario)
- ON | UWaterloo (U of Waterloo)
- ON | UofG (U of Guelph)
- ON | OTU (Ontario Tech U)
- QC | McGill (McGill U)
Sorted by province, then by total full-time enrolment.
π΅ Finance, Shopping, Sales
- Personal Finance Canada
- BAPCSalesCanada
- Canadian Investor
- Buy Canadian
- Quebec Finance
- Churning Canada
π£οΈ Politics
- General:
- Federal Parties (alphabetical):
- By Province (alphabetical):
π Social / Culture
Rules
- Keep the original title when submitting an article. You can put your own commentary in the body of the post or in the comment section.
Reminder that the rules for lemmy.ca also apply here. See the sidebar on the homepage: lemmy.ca
founded 4 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
We do not need a constellation. We do not need more space junk.
We need fibre everywhere.
Eat your fibres, everyone.
Fibre is not going to get us up north.
Similar problems with fibre to all of Australia. It's just not feasible for small remote communities.
Microwave towers? They don't bridge enormous distances but can bypass areas that it would be inadvisable to lay cable
Terrestrial solutions for remote areas typically have excessive build out and maintenance costs.
Engineers will do a tradeoff and select the most suitable solution given the criteria. It's very easy to underestimate costs, particularly over the entire lifetime of the system.
Maybe when we get 6g and our avian bird flu boosters we can get 6g access through our minds π€―
/s due to it being utterly insane, but I recognize Poe's law is alive more than ever now. https://en.wikipedia.org/wiki/Poe%27s_law
There are solutions for the far arctic that aren't high density mesh networks polluting low earth orbit.
Yes there are such solutions, but for remote regions without infrastructure and with high build out and operating/maintenance costs for terrestrial technology, I suspect that the most cost effective solution that we can achieve in a timely fashion is probably LEO, like Lightspeed or Starlink. Particularly since Canada has half a century of experience building satellite systems.
Managing LEO debris and congestion is not an insurmountable challenge.
Neither are satellite orbits.
https://www.researchgate.net/figure/llustration-of-two-X-Y-paths-with-different-X-component_fig5_347273912
Buddy, I'm an aero eng. There are lots of ways to get satellites in polar orbits.
Why didn't you look at the actual Lightspeed site from Telesat? Why would you pick a random paper? The Telesat site explains how they get coverage in polar regions.
https://www.telesat.com/leo-satellites/
Of course there are, but the customers are mostly not at the poles, so any times the satellites spend at the poles is wasted.
I suggest you look up the solution that Telesat will use. I'm not involved in that project, but a quick glance shows me that the engineers involved have probably done their homework and have considered the customer base and their needs, including the need to service all regions of the country.
If we must have a satellite it should be a single geostationary one.
Geostationary satellites orbit at a height of 35,000 km. That means there's a huge lag, making the satellites unsuitable for interactive Internet, and it also means they're far away, so you need a big directional antenna to send data to them.
Starlink is awful, but you definitely don't want geostationary satellites for Internet.
Correctamundo. You can't speed up light. For low latency you need LEO, and since they don't sit still for you (8km/s roughly) you need a bunch of them in some kind of formation or constellation, so that you generally have something to connect to at any given moment, or at least a chain that can relay to ground stations.
Kessler syndrome has entered the chat
We could be architechting our own Great Filter (assuming we've not passed it already, and assuming we can't solve the Kessler syndrome).
Some light reading for those unfamiliar:
https://en.m.wikipedia.org/wiki/Kessler_syndrome
https://en.m.wikipedia.org/wiki/Great_Filter