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jarenmf

986 karma · joined September 3, 2020

I'm an atmospheric physicist
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jarenmf··on First active chemistry on an exoplanet revealed by Webb telescope
Maybe detecting a seasonal cycle for certain compounds will be a very strong evidence. Like the amount of atmospheric CO2 in air changes with seasons on earth.
jarenmf··on Universal Paperclips
Although I've played it before, I was sucked into the black hole.
jarenmf··on Ask HN: What are some of the best books you have read in 2022?
I really liked it, it was fun and left me feeling very optimistic about the future.
jarenmf··on Ask HN: What are some of the best books you have read in 2022?
It's really a nice book and it left me feeling very optimistic about the future. The audio book has superb quality as well if you prefer that. Regarding rereading, maybe the chapter about the multiverse is dense and require rereading, the rest was OK.
jarenmf··on Ask HN: What are some of the best books you have read in 2022?
The ones that stand out: Fiction: Project Hail Mary. Non-fiction: The Beginning of Infinity, David Deutsch
jarenmf··on Early-life low-calorie sweetener consumption disrupts memory function in rats
He mentioned in Lex podcast that he still drinks 8-9 diet cokes everyday.
jarenmf··on Sound
I was able to reach 10^-7 mbar with a good vacuum system and I though I would have few thousand molecules, turns out there is a billion (10^9) molecules per cubic centimeter at that vacuum level.
jarenmf··on School vs. Wikipedia
I have an opposite experience. I'm a scientist and my research topic is accurately depicted in Wikipedia I would say better than any textbook. Of course Wikipedia has to be reductionist, it is not required to provide a full literature review for any topic. If you are doing a PhD-level research, then Wikipedia will fall short of providing the latest and finest details. Other than that, it's more than enough. I also believe it is the duty of experts to contribute to improving Wikipedia (I know many who do).
jarenmf··on Ask HN: Offline resources during internet outages?
I always keep a fresh copy of Endless OS image around. https://endlessos.com/
jarenmf··on Ask HN: Offline resources during internet outages?
The internet was cut off for three months in my country. I had offline Wikipedia, tons of books and other media. It was more than enough for reading/media consumption but I really missed communicating with people.
jarenmf··on Ask HN: Do you regret being a generalist?
Specialization allows you to engage on a deeper level with the subject which in itself can be a very rewarding experience.
jarenmf··on Ask HN: What is the cheapest laptop I can buy for development
Older Thinkpads, in particular Thinkpad x230 is an overall a good powerful machine selling for around 150$ second hand. It also has good screen and really awesome keyboard.
jarenmf··on Reducing methane is the fastest strategy available to reduce warming
That's totally incorrect. The current warming is unequivocally due to release of CO2 into the atmosphere. It's really simple physics.
jarenmf··on Particle physicists puzzle over a new duality
Every writing course I attended in grad school told us that the first sentence of the abstract should be understandable by any scientist, the second sentence should be comprehensible to a scientist in a related field. After that, you address the specialists community. However, it seems that more and more people are skipping the first and second sentences and jumping directly to talking to specialists. I have mixed feelings about that. On one hand, it's nice to skip the generalities but at the same time some times its nice to have some context.
jarenmf··on The importance of exponentially more computing power
Related to weather, climate science would benefit greatly from increased computational power. Current models are forced to make assumptions to predict certain processes below the grid resolution. Things like cloud processes and transport processes are usually parameterized. Similarly, computational fluid dynamics are very useful to studying climate and are limited by the available computational power.
jarenmf··on Is the Kalman filter just a low-pass filter?
I'm struggling to see the advantage over the arithmetic mean if I don't have a model of the true value. How is the confidence estimated for each value? given the example from the article where the variance of the temperature sensor is considered to be constant.
jarenmf··on AlphaFold reveals the structure of the protein universe
This is probably one of the best applications of AI in science in terms of impact so far. I can't think of any other problem with the same potential impact.

EDIT: grammar

jarenmf··on Take more screenshots
One of the things I regret most is not keeping backups of the programs I wrote as a child almost 25 years ago. They all just gone, tens of thousands of lines of code. I remember spending whole summers coding and it's all gone.
jarenmf··on Tell HN: My new free note taking tool
I use vimwiki this way. I changed the landing page name to `README.md` and used markdown files so I can always see it rendered beautifully on Github. I have another vim extension that automatically commits and pushes the changes.
jarenmf··on Fermented Chili “Open Sauce” – My most starred repo has no code in it
I'm buying them regularly from the Asian shop in my town. They have fresh Habaneros, Jalapenos, and Thai peppers
jarenmf··on The importance of stupidity in scientific research
Same here, cultivating motivation is definitely the hardest part of the job. Academic work needs months if not years get out and have impact and, personally, I don't get to discuss my work too often with people because it's too specialized.
jarenmf··on How the US Air Force Ditched the Average and Saved Lives
Indeed, I keep hearing this countless times. People genuinely think that people died in their 30s two centuries ago.
jarenmf··on Ask HN: Any viable alternatives to Google News?
Brave just released brave news but it seems very passive, there aren't many options to tune it to your liking.
jarenmf··on Detecting unauthorized physical access with beans, lentils and colored rice (2021)
That's really a cool study! Do you think this will be adopted at some point? are there currently any efforts to solve this problem?
jarenmf··on Copilot sells code other people wrote
I guess the question is where you draw the line between a derivative work and "learnt by an AI algorithm"
jarenmf··on You and Your Research (1986)
Finding the right problem to work on is probably the most difficult part. Renaming problems in most fields are either too difficult or too boring.
jarenmf··on As professors struggle to recruit postdocs, calls for change in academia
Every post-doc I know is plotting an escape plan, some are learning web development, some are learning data science or system administration, heck, there is even special bootcamps now for postdocs evading academia
jarenmf··on As professors struggle to recruit postdocs, calls for change in academia
I'm currently a postdoc in Germany, to be honest, it seems that only people who can't find a job in the industry are staying in academia. I've never met a postdoc who was happy about what they are doing, everyone one is thinking of an escape plan.
jarenmf··on New CRISPR-based map ties every human gene to its function
Yeah, it feels like most fields are stagnated except for biology and neuroscience. I am a postdoc right now but have considered seriously switching fields to work on something exciting.
jarenmf··on Probability and Statistics Cookbook (2011) [pdf]
Similar to the law of total expectation, easier for me to think of partitioning a weighted mean :)
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