maccam94

10 ms·

61.
by maccam94 5y ago
The problem is that even when that choice is given, every Google search pushes Chrome, Microsoft constantly pushes you to switch to Edge. I'm not sure how much Apple pushes Safari, but last I heard it actually gives superior battery li
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by maccam94 5y ago
People are not finite. They change addresses, have kids, get different jobs, etc. The flows of people shift around over time, and the transportation infrastructure is one factor that influences those flow patterns.
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by maccam94 5y ago
I think the parent comment meant to say there is no propellant in space.
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by maccam94 5y ago
It captures neutrons and breeds tritium, which will be separated out and used to fuel the fusion reaction. https://www.sciencedirect.com/topics/engineering/breeding-bl...
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by maccam94 5y ago
How significant are those? 2x 777 flights worth? 10? There are thousands of airplane flights every day, but only a couple of these per month.
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by maccam94 5y ago
Analysis of what, exactly? The physics of the orbits they are in are pretty well understood. You can track the orbital altitudes (and failures/disposals) here: https://planet4589.org/space/stats/star/star
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by maccam94 5y ago
Each write is striped across all of the disks. For a stripe to be completely written, all disks must finish writing the data. Thus your max write IOPS equals that of the slowest drive in the vdev.
68.
by maccam94 5y ago
I just upgraded to a big 4K monitor and I'm trying to figure out my options for migrating from GNOME+Wayland on Ubuntu 22.04. It seems like there's sway (i3 ported to Wayland) along with some sort of sway-GNOME session config that
69.
by maccam94 5y ago
Suburbs were not created out of a natural desire people had. There was a combination of federal financial incentives and racist motives in the 50s that created them, and they are far less efficient than cities by basically every metric. Not
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by maccam94 5y ago
It is prohibitively expensive until SpaceX's Starship brings launch costs down further.
71.
by maccam94 5y ago
The source is linked in another comment below, but to clarify, there is no extra heater hardware, there's a software function that ramps up the dish power to make the chips run hotter to melt the snow.
72.
by maccam94 5y ago
There's not much new info here since the last time the project was discussed. The first two comments here link to informative videos about how the reactor works: https://news.ycombinator.com/item?id=24629828#24634733 N
73.
by maccam94 5y ago
Commonwealth Fusion Systems plans to hit Q>10 net energy gain in their SPARC reactor in 2025, and then turn on a continuously operating ARC power plant around 2030. They plan to use a steel vacuum chamber which will need annual replaceme
74.
by maccam94 5y ago
This article is not about ITER, it is discussing a new reactor being built by an MIT spin-off company called Commonwealth Fusion Systems. They plan to build a demo reactor by 2025, and a full scale power plant by 2030.
75.
by maccam94 5y ago
CFS's ARC reactor design will use a FLiBe molten salt blanket to shield everything except the vacuum chamber itself, which is a steel doughnut with 2cm thick walls. They plan to build a proof of concept reactor by 2025 that will have n
76.
by maccam94 5y ago
Commonwealth Fusion Systems has addressed all of those issues: 1. The higher field strength from the new HTS magnets eliminates turbulence. 2. The ARC reactor will use a FLiBe molten salt blanket to capture energy from neutrons and breed tr
77.
by maccam94 5y ago
West coast ports likely move cargo from Asia onto trains destined for much of the central US, which avoids canal fees and bottlenecks, as well as wasted time backtracking.
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by maccam94 5y ago
How free is their will? Can they choose not to poop? Can they choose to use a toilet when they have to poop? Can they choose to have all of the prerequisites to have their own toilet to poop in? (a stable location to live, an income stream
79.
by maccam94 5y ago
It's possible to overbuild roads where there isn't demand for them. But for major metropolitan areas, there are large numbers of people who want to go to similar categories of destinations, and their choice of specific destination
80.
by maccam94 5y ago
The Red Cross has ~7 million donors per year (~2% of the population). That's not really evidence that they could sample a large enough portion of the population as quickly as they could be vaccinated. And again, it doesn't increas
81.
by maccam94 5y ago
I'd recommend reading the official Hashicorp website for that, but the gist is that nomad is another way of deploying apps in containers (similar to kubernetes), consul is how apps find other apps to talk to (kinda like DNS but with he
82.
by maccam94 5y ago
The tiles on Starship are much more uniform than on the Space Shuttle, so they are cheaper to produce and less complex to replace.
83.
by maccam94 5y ago
Most people in the US who have contracted COVID-19 don't have proof of it. Vaccinating everyone is cheaper and more consistent than trying to build out mass testing infrastructure. Plus if you can convince people to show up for a test,
84.
by maccam94 5y ago
Road space is currently unmetered. Parking space is also often unmetered or underpriced. Should it be the same price for everyone to drive 18-wheelers and RVs and cars and mopeds into the center of a city? Bicycles are the most efficient mo
85.
by maccam94 5y ago
There will be as much traffic on a road as there are people willing to put up with it. Urban planners can reduce traffic by introducing alternative transportation methods and either raising costs for cars (congestion pricing, dynamic parkin
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by maccam94 5y ago
At one time it was a concern that malicious actors would spoof urls with unicode confusables. Chrome (and others, but unsure of the exact list) implemented restrictions on displaying unicode characters to try to prevent this: https:/&
87.
by maccam94 5y ago
CFS has plans for swappable vacuum chambers (1 year lifespan) and the liquid blanket will protect the magnets for a 10 year lifespan. This talk by the MIT Nuclear Science department head explains the whole rationale behind ARC/SPARC, a
88.
by maccam94 5y ago
Commonwealth Fusion Systems is privately funded and aiming to demonstrate net energy gain in 4 years. It's not like the lumbering ITER project.
89.
by maccam94 5y ago
SpaceX's main innovation was that they decided to build a rocket that wasn't optimized for performance or reliability, but cost. They were willing to bear huge development risks to create a new price category and capture latent de
90.
by maccam94 5y ago
I'm curious whether we could cool the planet by pulling CO2 out of the air with scrubbers powered by fusion reactors, or if their heat output would cancel it out. Removing the CO2 would have the benefit of being an exponential thermal

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