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MrsPeaches

2,194 karma · joined February 7, 2016

Co-founder at Open Energy Labs

https://openenergylabs.co/

Feel free to drop me an email: samson [at] openenergylabs.co

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MrsPeaches··on New UK record for wind power set today – 21.81 GW between 0900-0930 GMT
Seawater ain’t no joke.

I remember reading a few papers about essentially underwater turbines in tidal estuaries. Where you have natural flow of water that you can just tap. If I recall correctly impact on local wildlife (seals iirc) was lower than expected.

Main argument I could see was that water had 1000x the density of air so 1000x the amount of power for a rotor with the same swept area. Of course fluid speeds are lower so it’s not quite that easy. But much more predictable. They did some fancy optimisations in the blades and came up with decent efficiencies. It’s a great little series of papers by Batten and Bahaj et. al from 2006.

I assume the art has progressed since then.

But yeah, anything with moving parts in seawater is a nightmare as far as I can tell.

MrsPeaches··on Cyborg cockroach could be the future of earthquake search and rescue
My understanding is that it’s not interfacing with the insect’s brain directly but is instead using electrodes to stimulate receptors that trick the insect into thinking it has felt something on its left/right side and moving accordingly.

Other approaches include inserting electrodes into muscular tissue and stimulating that to cause the muscle to move. This article also describes inserting the electrodes into moth pupae and the moth growing around the electrodes:

https://robot-watch-impress-co-jp.translate.goog/cda/news/20...

MrsPeaches··on LibreChat – Enhanced ChatGPT Clone
Decent list of UIs (includes LibreChat): https://github.com/korchasa/awesome-chatgpt
MrsPeaches··on Tiny volumetric display
For anyone based in or visiting London, exhibitions at 180 Studios [1] often use this kind of tech for art shows. Well worth checking out if you are into art and tech.

[1] https://www.180studios.com/

MrsPeaches··on The Seamless Communication models
Even they struggle with jokes though.

This may be apocryphal but I’ve heard that in formal settings (e.g. UN) they won’t translate it and will instead give instruction on when to laugh.

MrsPeaches··on Sam Bankman-Fried and the effective altruism delusion
Frameworks yes, dogma less so.

Dogma is a key part of religion’s power. It gives certainty in the face of these difficult questions.

MrsPeaches··on Sam Bankman-Fried Convicted
“if you’d like to gain greater insight about “valuable boxes” with no economic use case that go “to infinity” because of “the bullishness of people’s usage of the box”, don’t forget to sign up for the FT’s Crypto and Digital Assets Summit beginning Tuesday.”
MrsPeaches··on Scientists discover links between Alzheimer's disease and gut microbiota
I found this list really helpful to understand:

https://www.bbc.co.uk/food/articles/what_is_ultra-processed_...

MrsPeaches··on Beetle grows ‘termite’ on back to steal food
Personal favourite is the compound word “Zeitlupe”.
MrsPeaches··on Evergrande shares plunge as much as 87% as trading resumes after 17 months
If a research paper is required, sure.

Even just how you think you know this, would be helpful.

Is it what people are saying in social media? Is it a theory you have synthesised from other sources? What are those sources?

Just using the HN referencing style [1] where you are making a factual claim.

Understand it’s a lot of work for a stranger on the internet, hence the friendly request.

[1] like this

MrsPeaches··on Evergrande shares plunge as much as 87% as trading resumes after 17 months
Greatly appreciate your detailed post. Very interesting!

Could I kindly request that you update your post with references?

This sounds very plausible, but it's difficult to acertain the veraciy of the claims.

Even if the references are anectodal, or based on your experience, it would be really helpful to know where this knolwege is coming from.

MrsPeaches··on Ask HN: What are the big/important problems to work on?
> but the tech needed to bring electrification from 11% to say 50% or maybe even 80% is there already.

Do you have any basis for this claim?

If this were true, why are so many of the companies working in the field tech and innovation-led?

https://www.ruralelec.org/current-members

Just as example of the kind of problems faced: how do you electrify thatched roofed houses made from mud bricks? Can’t really insert plugs.

MrsPeaches··on Ask HN: What are the big/important problems to work on?
I’d strongly disagree that the tech is solved.

We are talking about providing an 1/8th of the worlds population with electricity for the first time. That is a huge challenge.

Now add into that doing it in a way that won’t destroy the planet and the fact these people are in some of the remotest areas of the world, it’s definitely not a solved problem on the tech side.

We haven’t even figured out how to supply the current population sustainably let alone another 850 million.

MrsPeaches··on Ask HN: What's the coolest physical thing you've made?
Solar powered synth and step sequencer: https://www.youtube.com/watch?v=c_A0B1R-tZg

Made only from components locally available in Zambia.

MrsPeaches··on Ask HN: What are the big/important problems to work on?
Provding access to electricity to people in less-econmically developed nations.

South, East and West Africa still have massive issues with providing one of the most transformative technologies ever, to their populations, particularly in rural areas.

Average rural electrification rate across Africa is 29%, with places like Zambia at only 11%. https://www.usaid.gov/powerafrica/zambia

Access to electricity obviously has impact across many aspects of life, but for many of the people I have spoken with, their immediate priority is improving their kids education. If you don't have electricity you can't study after dark.

This particuarly impacts girls, who not only don't get the light to study after dark like the boys, they are also responsible for collecting firewood, which is used to get even a little (crappy) light.

So after a day at school, the girls go out to collect additional firewood to create light, then are obvisouly exahsted, don't have very good light to study and fall behind in school.

That's just at the bottom of the ladder. All the way up industry, they are all impacted by poor electircity supplies.

In my opinion, it's a transformational area to be working in.

MrsPeaches··on Aspartame sweetener to be declared possible cancer risk by WHO, say reports
See also: https://en.m.wikipedia.org/wiki/Words_of_estimative_probabil...
MrsPeaches··on OpenBSD: Shutdown/reboot now require membership of group _shutdown
“Please don't post comments saying that HN is turning into Reddit. It's a semi-noob illusion, as old as the hills.”

https://news.ycombinator.com/newsguidelines.html

MrsPeaches··on Effective June 7, 2026, Autodesk will no longer sell nor support EAGLE
The intro to Kicad series from Digikey is really good.

Covers all the bases: https://youtube.com/playlist?list=PLEBQazB0HUyR24ckSZ5u05TZH...

MrsPeaches··on Solid-State Battery Has 2x the Energy–and No Anode
Who’s the current market leader on EV private pilot planes?
MrsPeaches··on Facebook is going after LLaMA repos with DMCA's
If it’s a specific list, then I would guess so. By it may be that the numbers themselves aren’t copyrightable.

In the same way that a list of ingredients can/can’t be copyrighted.

MrsPeaches··on Facebook is going after LLaMA repos with DMCA's
If it’s a specific list, then I would guess so. But it may be that the numbers themselves aren’t copyrightable.

In the same way that a list of ingredients can/can’t be copyrighted.

MrsPeaches··on ‘Catch Me If You Can’ conman lied about his lifetime of lies
As easy as it is to crap on Paris Hilton, given trauma she survived, I’m actually kinda impressed how well she did in her life.

https://www.theguardian.com/lifeandstyle/2023/mar/18/they-st...

MrsPeaches··on Understanding British Money: What's a Quid? A Shilling? (2020)
It’s a bit outdated tbh, as it was a reference to to gold colour of the pound coin (as shown in the article).

To be used as follows:

Bredda, set me a nugget. I’ve only got 50p and I’m feeling that Junior Spesh [1]

[1] https://m.youtube.com/watch?v=Q6pbZLiLt30

MrsPeaches··on Understanding British Money: What's a Quid? A Shilling? (2020)
Other slang terms (more commonly used in London):

- “Nugget” - £1

- “Reds” - £50 (usually only used in the plural e.g. a stack of reds)

- “Bill” - £100

- “Monkey” - £500

- “Grand” - £1000

- “Bag” - £1000 (from cockney “bag of sand” rhyming with “grand”)

MrsPeaches··on What Is Anglish?
As far as I understand it, Zeug means thing in this context.

Stuff is “Stoff” as in Brennstoff.

Fire-thing and burning-stuff.

Lighter is “Zünder“ in German.

Feuerzeug vs Zünder

To close to call regarding which is clearer.

MrsPeaches··on German university life seen through American eyes, 1900-1901
> Meine Herren und Damen!” (the order is significant)" -------- Nowadays, it's the other way around ("Meine Damen und Herren").

It’s usually meine Damen und Herren, as it is in English (Ladies and Gentlemen).

In fact the only reference I can find to it being the other way round is in the first speech given by a woman in the German parliament in 1919.

https://de.m.wikipedia.org/wiki/Marie_Juchacz

MrsPeaches··on Show HN: IngestAI – NoCode ChatGPT-bot creator from your knowledge base in Slack
This looks cool and it is fulfilling a need for me (I created a duct tape prototype of a similar solution using LangChain).

I want to get up and running the 2mins advertised but am struggling to find the docs.

Could anyone point out where these are? Is there maybe a video I can follow to test this?

MrsPeaches··on Nigeria bans ATM cash withdrawals over $225 a week to force use of CBDC
ESMAP have a good guide for this: https://esmap.org/mtf_multi-tier_framework_for_energy_access

https://mtfenergyaccess.esmap.org/

Might not help in this case but it’s a nice frame work for thinking about energy access.

MrsPeaches··on Obsolete Sounds: collection of disappearing sounds and extinct sounds
"Overwhelming and Collective Murder..."

https://www.youtube.com/watch?v=ze9-ARjL-ZA

MrsPeaches··on Ask HN: How innovative is the hydrogen industry?
Here is the UK gov Hydrogen strategy that also has a recent update on the market: https://www.gov.uk/government/publications/uk-hydrogen-strat...

Hydrogen strategy update to the market: July 2022: https://assets.publishing.service.gov.uk/government/uploads/...

They (the UK gov) also have a portfolio of companies, they have invested in, that you can have a dig around for if u checkout current and previous Innovate UK funding rounds.

Probably worth checking out similar programmes from other tech focused government investments (US, Germany, etc.)

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