HNHacker News
TopNewBestAskShowJobs

montalbano

6,098 karma · joined February 26, 2018

submissionscomments
montalbano··on Ask HN: Would you read a statistics textbook?
How would it overlap or differ from 'Statistical Rethinking'?

This is widely regarded as the most accessible intro textbook to Bayesian statistics.

https://xcelab.net/rm/

montalbano··on Greenland issues "strong warning" as American oil firm illegally drills wells
The correct title was within the HN title length limit.
montalbano··on Greenland issues "strong warning" as American oil firm illegally drills wells
> I guess the headline has been changed?

No. Check internet archive: https://web.archive.org/web/20260808055323/https://www.thegu...

The HN poster got the title wrong.

montalbano··on Adoption of EVs tied to real-world reductions in air pollution: study
Recent research suggests the issue is much less concerning than previously estimated.

https://www.ch.cam.ac.uk/news/illusion-truth-surrounds-inacc...

montalbano··on Adoption of EVs tied to real-world reductions in air pollution: study
Recent research suggests the issues are much less concerning than previously estimated.

https://www.ch.cam.ac.uk/news/illusion-truth-surrounds-inacc...

montalbano··on Adoption of EVs tied to real-world reductions in air pollution: study
>> Nobody studies this

Tire dust has been studied for decades and the most recent research I've seen suggests the issues are less concerning than previously estimated.

https://www.ch.cam.ac.uk/news/illusion-truth-surrounds-inacc...

Brake dust is significantly reduced by EVs:

https://www.rac.co.uk/drive/electric-cars/running/do-electri...

montalbano··on Dust from car brakes more harmful than exhaust, study finds
https://www.ch.cam.ac.uk/news/%E2%80%98illusion-truth%E2%80%...
montalbano··on What every systems programmer should know about concurrency (2020) [pdf]
That's a valid broader definition but in practice I find it too broad to be very useful.
montalbano··on What every systems programmer should know about concurrency (2020) [pdf]
My definition:

A person who writes software that is closely bound to the operating system interface and/or hardware for reasons of performance and/or functionality.

montalbano··on Ask HN: What's the state of the art for drawing math diagrams online?
Penrose looks pretty good:

https://github.com/penrose/penrose

https://news.ycombinator.com/item?id=23430282

montalbano··on Persuasion through status rather than argument
I was surprised the blog post did not mention Modes of Persuasion, which were codified in 4th century BCE by Aristotle.

Ethos: appeal to authority

Pathos: appeal to emotion

Logos: appeal to logic

I found the post's added description of more recent psychological studies interesting though.

https://en.m.wikipedia.org/wiki/Modes_of_persuasion

montalbano··on Centimillionaires: Elites with Investable Assets of More Than $100M
No it's like saying biannual can mean twice a year or once every two years.

Dictionaries are descriptive, not prescriptive. Language evolves.

montalbano··on Centimillionaires: Elites with Investable Assets of More Than $100M
It can be used either way, e.g. the word "century" means 100 years.

https://www.merriam-webster.com/dictionary/centi-

Update: looked into this more and the "centi" part of the SI system comes from the Latin word "centum" which means 100, not 1/100. Definitely seems either usage is acceptable.

https://www.vocabulary.com/dictionary/centimeter

montalbano··on Antarctic sea-ice at 'mind-blowing' low alarms experts
Lots of people have been working on this for a long time. But it's a very hard problem.

See for example

+ https://www.salk.edu/harnessing-plants-initiative/

+ https://www.slcu.cam.ac.uk/news/wood-modification-boosts-bio...

+ https://news.mongabay.com/2023/07/genetically-engineered-tre...

+ https://www.nytimes.com/2023/02/16/science/genetically-modif...

> Are trees the plants which capture most CO2 per hectare?

I'm struggling to find exact numbers per hectare, and it's only one of several important metrics (e.g. speed of capture, longevity, ecosystem effects).

From my readings I believe a combined strategy of species-diverse reforestation and algae breeding (perhaps GM, though I don't know enough) would be optimal.

Edit: as noted by others below, wetlands preservation and extension would also be great.

montalbano··on Reduction of sulfur emissions from ships may be causing rising sea temperatures
A better wording for the title:

Reduction of sulfur emissions from ships has reduced masking of global warming

The word 'cause' in current title seems wrong.

montalbano··on Microbes discovered that can digest plastics at low temperatures
This is newsworthy because the bacteria can function at lower temperatures (15 C) than previous bacteria discovered.
montalbano··on The big idea: why you can’t leave climate out of history
Haldane's four stages of acceptance:

1. This is worthless nonsense.

2. This is an interesting, but perverse, point of view.

3. This is true, but quite unimportant.

4. I always said so.

Stages 1 and 2 are approximately denial, stage 3 is the skepticism you mentioned

montalbano··on Scientists find link between photosynthesis and 'fifth state of matter'
Quite a lot of people are researching this. For a Starting point, have a look at the 'harnessing plants' initiative at the Salk Institute:

https://www.salk.edu/harnessing-plants-initiative/

montalbano··on Food waste: green vegetable and potato crop glut after mild UK autumn
I think it's more complicated than that. Also from the article:

> He is working with FareShare, a charity that distributes surplus food to those in poverty, to get the extra brassicas and potatoes to those who need them.

So at least some farms have had the resources to get this surplus out to people.

> Consumer demand is also to blame; the mild weather means people are not yet in the mood for sprouts and cabbages.

Perhaps demand wouldn't be that high even at a low price.

> Whilst supermarkets are adapting by offering vegetables – such as potatoes and brassicas – of a smaller size, many are refusing to pay farmers a price that would cover the cost of production.

Perhaps the price wouldn't even be that low if you bought direct from farm. Operating costs for farmers have also been affected by inflation.

montalbano··on London's Ultra Low Emission Zone to cover entire city
The article mentions a £110 million fund which, in part, will be used to help van owners retrofit their vehicles to make them compliant.

Perhaps that will help?

I can't comment in any more detail as I don't know how much engineering work is required for these types of changes.

montalbano··on Ask HN: A math study program?
I also came here to say this.

I have a PhD in engineering that was fairly mathematical, but I was missing lots of fundamentals and working through those books has changed my life, and the way my brain works, in a massive way.

They aren't cheap, but they are worth every cent. I am very grateful for having discovered them.

montalbano··on Triple-dip La Niña confirmed as BoM makes declaration
Haldane's theory on stages of acceptance:

1. This is worthless nonsense.

2. This is an interesting, but perverse, point of view.

3. This is true, but quite unimportant.

4. I always said so.

montalbano··on A subpolar-focused stratospheric aerosol injection deployment scenario
Does anyone have good sources on effects that this kind of intervention would have on solar power?

I haven't seen it discussed before so maybe it's negligible, but I'm curious.

montalbano··on Timeline: Nuclear power in the United Kingdom (2011)
Article is dated 2008 but the timeline clearly goes up to 2011 so I believe the date I appended to title is correct.
montalbano··on Increased wind turbine rotor blade visibility to reduce avian fatalities
> Not for the United States or other western countries.

Incorrect - An obvious counterexample is the UK.

Wind power contributed 24.8% of UK electricity supplied in 2020, having surpassed coal in 2016 and nuclear in 2018.

https://en.m.wikipedia.org/wiki/Wind_power_in_the_United_Kin...

montalbano··on Europe Is Getting Serious About Making Space-Based Solar Power a Reality
> “Europe”, simply isnt capable of large scale projects.

CERN is the first counter-example that comes to mind.

https://en.wikipedia.org/wiki/CERN

montalbano··on The World’s Cotton Supply Keeps Shrinking, Hit by Drought, Heat
Three key quotes from the article:

- In India, the top-producing country, heavy rains and pests have cut into cotton crops so much that the nation is importing supplies.

- In the US, the largest exporter of the commodity, a worsening drought is ravaging farms and is set to drag production to the lowest level in more than a decade.

- Brazil, the second-largest exporter, is battling extreme heat and drought that have already cut yields by nearly 30%.

montalbano··on More energy on less land: The drive to shrink solar’s footprint
Do you have some references on this?

I would probably agree if you are referring to USA. But I would be skeptical that the same is true in the UK.

montalbano··on More energy on less land: The drive to shrink solar’s footprint
There might be some studies on corn available, although it's not explicitly mentioned in the article. From the article:

Researchers are experimenting with which plants do best under solar panels and even trying to grow tomatoes and potatoes between rows at existing utility-scale farms, Macknick says.

montalbano··on More energy on less land: The drive to shrink solar’s footprint
To add, rail and roads are tricky because they are long and _continuous_ pretty much by definition.

Solar and wind can be much more opportunistic in using small packets of land.

Page 1 of 9Next →