SEJeff

54 ms·

631.
by SEJeff 6y ago
^ This. The second stage (which is not reused on a Falcon 9), the fairings, and the grid fins are three of the longer lead time items for the Falcon series rockets. Reusing as much as possible helps keep their crazy launch cadence up.
632.
by SEJeff 6y ago
FWIW, this isn't the first time they've caught the fairings, it is the first time they've caught both of them. They've actually reflown 4 fairings now however a few of them they fished out of the ocean and had to do fu
633.
by SEJeff 6y ago
*yet
634.
by SEJeff 6y ago
Why do you say that? Researcher Jeff Dahn, who is a co-inventor of the lithium ion battery, has released what he termed a "million mile" electric vehicle battery. That is a pretty high level of charge / discharge cycles and s
635.
by SEJeff 6y ago
Oh I totally agree with you. Suse Linux 6.0 was my very first linux distribution around 1998 or 1999. I've professionally managed SLES, SLED, and even migrated a netware server to open enterprise server. It is great stuff and I'm
636.
by SEJeff 6y ago
Redhat is bigger on both. Scientific Linux, which was built exclusively for HPC, was based on CentOS.
637.
by SEJeff 6y ago
Redhat more or less tossed their Atomic distribution in the bin and replaced it with Redhat CoreOS, which is all of the tech from CoreOS but built ontop of the redhat package repository. The upstream is Fedora CoreOS: https://get
638.
by SEJeff 6y ago
mods / dang: there are 3 posts about this. Can we consolidate to one? https://news.ycombinator.com/item?id=23769563 and https://news.ycombinator.com/item?id=23769478
639.
by SEJeff 6y ago
They're still quite popular in Europe and especially in Germany whereas Redhat has utterly dominated North America.
640.
by SEJeff 6y ago
The big wildcard here is massive stationary storage, such as Tesla’s megapacks. They’re contracted to start on a 1MWh project with PG&E in California this year (Moss Landing). Renewables with stationary storage, in some cases, kill the
641.
by SEJeff 6y ago
The magic of postmates is good integration with google maps and no service charge (for me).
642.
by SEJeff 6y ago
To be honest, this seems perfect. Your description of this business fits pretty well with the rest of Uber's business aka "burning investor money to never make a profit".
643.
by SEJeff 6y ago
Ah sorry, I mistook that comment as saying they don’t last that long. Yeah I think battery chemistry is one of the (patented) areas where Tesla is far ahead of the rest of the world.
644.
by SEJeff 6y ago
Yes this is the correct term. Realtime processing in the operating system context vs the streaming data context are different things. https://blog.syncsort.com/2015/11/big-data/the-difference-be...
645.
by SEJeff 6y ago
https://insideevs.com/news/369722/tesla-jeff-dahn-new-batter... Tesla has battery cells that can last a million miles thanks to Jeff Dahn's research. Jeff Dahn is one of the original inventors of the Lithium
646.
by SEJeff 6y ago
Fair. Mitsubishi Heavy Industries develops just about everything.
647.
by SEJeff 6y ago
They're building one in Ventura, CA that is about 3 times bigger than the one in south australia. It will be 100 MW/400 MWh whereas the Hornsdale power reserve is 100MW/129MWh currently and will be 150MW / 129MWh after t
648.
by SEJeff 6y ago
What other car company has a legitimate energy division at all?
649.
by SEJeff 6y ago
Indeed, and that name makes the most sense. For the GP, the official name is not Rapa Nui, but Isla De Pascua as it is "owned" by Chile. The native inhabitants of this small island called it Rapa Nui after themselves. I've sp
650.
Podman 2.0(podman.io)
2 points by SEJeff 6y ago|0 comments
651.
by SEJeff 6y ago
It doesn't use paxos. It uses raft, an entirely different distributed consensus algorithm.
652.
by SEJeff 6y ago
> That's a function of battery size. The maximum battery size of the current Kona, Niro, and Soul is 64 kWh. Batteries cost money. The Kona, Niro, and Soul are all less expensive than the top end Teslas. The Model 3 LR battery size
653.
by SEJeff 6y ago
Not sure if you’re familiar with the Model 3 super bottle. Here is an overview of that from Jason Torchinaky (who used to design heat pumps for a living): https://jalopnik.com/the-tesla-model-3s-superbottle-easter-e... The
654.
by SEJeff 6y ago
Not one like this. The Model 3 "superbottle" was the best in the industry for the problem they were trying to solve with it. The Model Y "octovalve" heat pump is the successor and does things even better (and it is paten
655.
by SEJeff 6y ago
The HVAC losses are much less in the Model Y due to the heat pump / octovalve, something I wish they'd update the new from the factory Model 3s with. Sandy Munroe did a full Model Y teardown and has a whole segment on how this sim
656.
by SEJeff 6y ago
at least as a car company Is their justification justified if they are treated as more than a car company? Tesla is a car company. Their current products are great. Their upcoming products might be industry changing. The Semi is g
657.
by SEJeff 6y ago
Apache still runs some really big websites that likely have more requests than many of these startups. Ticketmaster has used Apache for almost 15 years as their primary webserver (but they're fronted by layers of varnish / Akamai)
658.
by SEJeff 6y ago
The most amazing guy who wrote the book on mod_rewrite (Rich Bowen) is from the same tiny town where I grew up in. The apache software foundation upstream folks are super good people.
659.
by SEJeff 6y ago
I was thinking the exact same thing ironically. Static file serving? Sure! Load balanced proxying? mod_proxy_balancer is great! Fine grained caching? mod_disk_cache is also great Updating loadbalancer bits via the api? mod_proxy_balancer su
660.
by SEJeff 6y ago
I switched from 3 years of bad Comcast cable to AT&T 1G fiber recently. They were professional and ran the fiber from the pole to my house in a few hours. I ran a speedtest on fast.com and got 985Mbps. The service uptime and quality has

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