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ms512

363 karma · joined November 14, 2015

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ms512··on Excel is pretty dang cool
https://xkcd.com/1053/ (to make a link available)
ms512··on ‘Things are going to break’: Texas power plants are running nonstop
Up front: I agree that there's generally too much posturing and too little focus on the data and how to actually solve our energy challenges.

With that said, it's worth considering the aspect of what it takes to ensure energy is available when it is needed. With fossil fuels, plant generation capacity has been historically built to ensure satisfaction of peak loads. Fuel was stored nearby to allow meeting rated capacity whenever that capacity was needed. Renewables' generation is slightly more complex, since we have less control for making rated generation happen when we need it to meet demand.

Of course, there are many options with making renewables work. Storage is one approach, overbuilding renewables to ensure a minimum actual generation in adverse conditions is another. As we work to reduce the costs of renewables (and storage), various renewable based options become increasingly economically advantageous. We shouldn't ignore the downsides; we should seek to understand what can be done about them.

As far as data goes, the Energy Information Agency (EIA) provides power generation/consumption data for the US grid, including breakouts by generation source [1]. The data for the Texas grid (ERCO) is interesting to explore.

[1] https://www.eia.gov/electricity/gridmonitor/dashboard/electr... (you can expand the graphs and view hourly data for up to 30 days and daily data for a much longer period of time).

ms512··on Top navy admiral wants rust-free ships
Jane's News [1] is a decent source for defense information.

[1] https://www.janes.com/defence-news/

ms512··on Crude oil market opens at $125
The US Energy Information Administration publishes a variety of energy related information, including US Oil Extraction. In Dec 2021, 11,567,000 barrels per day were extracted, compared to a 12,966,000 bbl/day peak in Nov 2019 [1].

Of course, this aggregate number doesn't disambiguate the cause of the decrease in production.

[1] https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=M...

ms512··on Amazon suspends Black Lives Matter from its charity platform
tl;dr: BLM Global Network Foundation (BLMGNF) hasn't disclosed where donations have been going and is out of compliance with various state's rules for non-profits. Amazon suspended donations to BLMGNF until the compliance issue is resolved.
ms512··on Depleted carbon isotope compositions observed at Gale crater, Mars
Recent HN post of a science.org article on this topic: https://news.ycombinator.com/item?id=29972342
ms512··on AWS price reduction for data transfers out to the internet
That is what it looks like. This news post appears to mostly restate another post Amazon made describing the free tier changes a few days ago [1] which was already discussed on HN [2].

[1] https://aws.amazon.com/blogs/aws/aws-free-tier-data-transfer...

[2] https://news.ycombinator.com/item?id=29332207

ms512··on Nine governors press U.S. lawmakers to pass semiconductor funding bill
Prime Contractor.

It is a company that is responsible for the final integration of a system, but often fans out subcomponents to a large assortment of other companies.

ms512··on Millions of Americans could face eviction as housing protection expires in June
While that is also true, the parent post was pointing out that the landlord has a cash flow issue without rent coming in.

If they can't pay the mortgage without a renter paying, they may have the property repossessed by the bank.

ms512··on Some landlords say only 25% of retail tenants paid April rent
It looks like it was a specific post on the page.

The direct link is https://www.wsj.com/livecoverage/coronavirus-2020-04-06/card...

It'd be nice to update the HN link to the direct link.

ms512··on Army Corps of Engineers to Build Temporary Hospitals in NY
> I today saw the number ... https://www.worldometers.info/coronavirus/

Note that the number for the current day isn't yet necessarily complete. For example, as of this writing, Washington and Illinois were not yet in the table [1].

Washington numbers get released at 3pm PST [1] and Illinois numbers don't specifiy an update time [2]. It looks like the number should end up around 8.5k today, so better than yesterday's 14k.

Of course, with all the back-and-forth on test availability, comparing numbers day-to-day is challenging, since more testing is likely to reveal a higher absolute number of cases.

[1] https://www.worldometers.info/coronavirus/country/us/

[2] https://www.doh.wa.gov/Emergencies/Coronavirus

[3] https://dph.illinois.gov/covid19

ms512··on Coronavirus – What we’re doing and how you can help in simple terms
An earlier news post gives some more detail about the projects being simulated [1]. That link was previously submitted on HN twice, but not discussed [2] [3].

[1] https://foldingathome.org/2020/03/10/covid19-update/

[2] https://news.ycombinator.com/item?id=22575200

[3] https://news.ycombinator.com/item?id=22579834

ms512··on Annual Letter to Berkshire Shareholders (2019) [pdf]
The Intelligent Investor by Benjamin Graham is a classic.

Graham's approach shaped Buffett's. Personally, I found The Intelligent Investor to be more clearly written than Buffett's letters. It more clearly left me with a framework for how to approach value investing.

ms512··on 3D Ken Burns Effect from a Single Image
The Roosevelts was my intro to Ken Burns and it was the only TV show ever that I could not stop watching. Since then, I've also been very impressed by the quality of all the other Ken Burns documentaries.
ms512··on Capital One Says Breach Hit 100M Individuals in U.S
Likely referring to the February 28th, 2017 S3 Service Disruption in the Northern Virginia (US-EAST-1) Region, for which Amazon published a postmortem at https://aws.amazon.com/message/41926/
ms512··on Tesla Shakes Up Model 3 Lineup
Prior HN post that included some discussion on this point: https://news.ycombinator.com/item?id=12748863
ms512··on Intel CPUs fall to new hyperthreading exploit that pilfers crypto keys
Recent HN discussion on a different article about the same exploit: https://news.ycombinator.com/item?id=18362905
ms512··on G Suite Horror Story
While I agree with setting up an email server not being a trivial endeavor, I managed to learn a lot and complete setup within a few hours by following one of the many available tutorials ([1], [2]) and the ongoing maintenance has been minimal.

I took the plunge about 4 years ago after being uncomfortable with the possibility of losing my main Gmail account. Ultimately, I decided that if I didn't own my email address, I was at the mercy of Gmail if anything went wrong. I came to the conclusion that losing my main email account would be more painful and time consuming than running my own server. At the time, I considered an alternative of owning my own domain and doing mail forwarding to Gmail or using a smaller email hosting provider, but decided there was value in learning more about how email worked.

[1] http://flurdy.com/docs/postfix/ [2] https://www.linode.com/docs/email/running-a-mail-server/

ms512··on YC’s 2018 Summer Reading List
The Vital Question: Energy, Evolution, and the Origins of Complex Life by Nick Lane makes the case of the evolution of life from the vantage point of energy transfer.

I found the book accessible and compelling.

ms512··on The physics of baking good pizza
I recently read Ken Forkish's Flour Water Salt Yeast: The Fundamentals of Artisan Bread and Pizza and found his discussion about how to use temperature and time to produce good bread and pizza enlightening.
ms512··on Screaming Fast Galois Field Arithmetic Using Intel SIMD Instructions (2013)
Intel's ISA-L ended up implementing this method. Their implementation is interesting because they took this further and took advantage of knowledge of the instruction latency to pipeline multiple iterations of this method to achieve some really amazing throughput.

For reference, see https://01.org/intel%C2%AE-storage-acceleration-library-open... and the source code at https://github.com/01org/isa-l (see the erasure code folder for details).

In general, I've found Prof. Plank's other papers and presentations very interesting, innovative, and accessible.

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