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Recent
🚨Greenhouses can grow food in extreme climates, but they often depend on fossil-derived CO₂ inputs to maximize crop yields.
New study investigates whether Direct Air Capture (#DAC) could replace those emissions-intensive CO₂ sources by capturing C directly from air.🧵1/13
New study investigates whether Direct Air Capture (#DAC) could replace those emissions-intensive CO₂ sources by capturing C directly from air.🧵1/13
2/ Researchers modeled a 1-ha sealed high-tech greenhouse in Jeddah, Saudi Arabia producing cherry tomatoes & lettuce under hot-arid conditions.
The system maintained ~1000ppm CO₂ conc, which are required to sustain high crop productivity in climate-controlled desert agri.
The system maintained ~1000ppm CO₂ conc, which are required to sustain high crop productivity in climate-controlled desert agri.
3/ The study evaluated two adsorption-based DAC systems:
• temperature-vacuum swing adsorption (TVSA)
• moisture-swing adsorption (MSA)
Both were benchmarked against conventional trucked liquid CO₂ enrichment currently used in commercial greenhouse operations
• temperature-vacuum swing adsorption (TVSA)
• moisture-swing adsorption (MSA)
Both were benchmarked against conventional trucked liquid CO₂ enrichment currently used in commercial greenhouse operations
Roger Froikin @rlefraim wrote, “Belgium has decided to indirectly ban circumcision, but only for Jews”
Belgium passed a law requiring those who do circumcisions to be certified licensed medical doctors,
1)
Belgium passed a law requiring those who do circumcisions to be certified licensed medical doctors,
1)
meaning in effect that medical doctors with little experience must be used over Jewish and Muslim experts with experience and who have been shown to d a better job.
2)
2)
On the surface it looks like Belgium wants to regulate things for the health of its population, but in action it comes off as bigotry.
3)
3)
Roger Froikin @rlefraim wrote, “There is a barely known and acknowledged fact about the American Revolution that could be instructive to learn in this 250th year since the Declaration of Independence.”
1)
1)
In 1776, there were three ethnic groups in the USA that 100% supported independence from England and that dreamed of a new country of freedom and equality that was the theme of the Declaration of Independence.
2)
2)
All other groups, English, Scots, Irish, German, French, were divided, with the wealthy upper class returning to England or moving to Canadian colonies.
3)
3)
1/6 Major Tom:
We have a big fat problem with LLMs.
Ground Control:
What is that Major?
Here... Question to Google AI
We have a big fat problem with LLMs.
Ground Control:
What is that Major?
Here... Question to Google AI
2/6
Answer
Answer
3/6
More:
More:
So it is obviously a good thing when Congress asserts its constitutional authority over war-making right?
Not necessarily.🧵
Not necessarily.🧵
The truth is how separation of powers has worked in practice has chiefly followed the utilitarian benefit to the country. For example, it's strongly agreed now that the Federal Reserve should control monetary policy rather than Congress.
The reason for that is not anything constitutional. The Federal Reserve has just done a far better job with this than Congress would.
Similarly, the push for tariff power to return to Congress is largely because the executive branch is doing a bad job with this power.
Similarly, the push for tariff power to return to Congress is largely because the executive branch is doing a bad job with this power.
I started a Substack. First piece up.
Most chaos is leadership choice. Some is physics. Some is human cruelty. Each demands a different preparation. Confusing them is what kills you, your project, and your supply chain. ↓
Most chaos is leadership choice. Some is physics. Some is human cruelty. Each demands a different preparation. Confusing them is what kills you, your project, and your supply chain. ↓
3/
Leadership chose cheap Chinese sourcing. I argued for US sourcing because the supply risk was visible. I was mocked for adding cost.
Project killed Jan/Feb 2025. Tariffs hit. The engineer who designed our 16-ch EMG board: "Yeah, whatever I designed, that's way more expensive now."
Leadership chose cheap Chinese sourcing. I argued for US sourcing because the supply risk was visible. I was mocked for adding cost.
Project killed Jan/Feb 2025. Tariffs hit. The engineer who designed our 16-ch EMG board: "Yeah, whatever I designed, that's way more expensive now."
BEST OF R/LEGALADVICEUK 🧵
r/LegalAdviceUK is a reddit subreddit where people ask for legal advice about their problems. Because of the levels of dysfunction in Britain today they often read as parody. A thread of some of the more absurd recent posts
r/LegalAdviceUK is a reddit subreddit where people ask for legal advice about their problems. Because of the levels of dysfunction in Britain today they often read as parody. A thread of some of the more absurd recent posts
“Our church food bank is getting misused”
“My friend paid someone to sit her driving test for her”
Everyone calls retatrutide "the Ozempic and tirzepatide killer" with triple agonist power.
But if you look at the data we have right now, tirzepatide might be the smarter choice.
Tirzepatide, explained: (1/13)
But if you look at the data we have right now, tirzepatide might be the smarter choice.
Tirzepatide, explained: (1/13)
Reta's most cited number is the 24.2% weight loss, from a Phase 2 trial of just 338 people over 48 weeks.
It now has one Phase 3 result (TRIUMPH-4: 28.7%), but that was 445 knee osteoarthritis patients, not a general obesity population.
Tirze's 22.5% came from 2,500+ people.
It now has one Phase 3 result (TRIUMPH-4: 28.7%), but that was 445 knee osteoarthritis patients, not a general obesity population.
Tirze's 22.5% came from 2,500+ people.
Retatrutide raises resting heart rate by about 6.7 bpm at the 12mg dose, while tirzepatide only raises it by 2.6 bpm at 15mg.
That is 2.5 times the cardiac load. Plus, the heart rate increase with tirzepatide fades over time, while reta peaks around week 24.
That is 2.5 times the cardiac load. Plus, the heart rate increase with tirzepatide fades over time, while reta peaks around week 24.
1/ Why can't Russia have n̶i̶c̶e̶ ̶t̶h̶i̶n̶g̶s̶ interceptor drones that work, unlike Ukraine? The answer, says one warblogger, is that Russia's military-industrial complex has been captured by big vested interests who've made it into a "gravy train". ⬇️
2/ '¡No Pasaràn!' compares Ukraine's P1-SUN with Russia's Yolka interceptor drone:
"The Ukrainians also made a "Yolka." How is it different from ours?
P1-SUN.
Acceleration up to 450 km/h.
Interception altitude up to 5000 m.
"The Ukrainians also made a "Yolka." How is it different from ours?
P1-SUN.
Acceleration up to 450 km/h.
Interception altitude up to 5000 m.
3/ "Our Yolka:
Maximum speed 250.
Interception altitude 2000 m.
Not allowed in the rain, not allowed at night, not allowed if facing the sun. If a bird flies between the Yolka and an enemy UAV, the Yolka can lock onto it. It can simply get knocked off course.
Maximum speed 250.
Interception altitude 2000 m.
Not allowed in the rain, not allowed at night, not allowed if facing the sun. If a bird flies between the Yolka and an enemy UAV, the Yolka can lock onto it. It can simply get knocked off course.
Roger Froikin @rlefraim wrote, "I wonder if Israelis know which prime minister first called for judicial reform.
I bet you think it was Netanyahu. But if that is your guess, you would be wrong.
1)
I bet you think it was Netanyahu. But if that is your guess, you would be wrong.
1)
The first prime minister to suggest the need for judicial reform was very specific, criticizing how judges for the High Court were chosen as “anti-democratic,” and he emphasized the need to democratize the court system and end the ethnic biases that seem to affect it.
2)
2)
That prime minister was Yitzchak Rabin."
3)
3)
80% of people say "please" and "thank you" to ChatGPT.
It turns out the AI prefers being yelled at.
A new study just ran the test. The ruder the prompt, the smarter the answer.
Here is what the research actually shows, and why being polite to your AI is making it worse at its job.
It turns out the AI prefers being yelled at.
A new study just ran the test. The ruder the prompt, the smarter the answer.
Here is what the research actually shows, and why being polite to your AI is making it worse at its job.
In April 2025, someone on X asked Sam Altman a strange question:
"How much money has OpenAI lost on electricity bills from people saying 'please' and 'thank you' to ChatGPT?"
Altman's answer:
"Tens of millions of dollars well spent. You never know."
He was joking, but the number was real. Billions of polite words run through a data center every day. Each "thank you" costs power. Across a year, that is tens of millions of dollars in electricity, all spent on words the AI did not need.
We assumed it was worth it because we thought being polite made the AI work better.
It does not.
"How much money has OpenAI lost on electricity bills from people saying 'please' and 'thank you' to ChatGPT?"
Altman's answer:
"Tens of millions of dollars well spent. You never know."
He was joking, but the number was real. Billions of polite words run through a data center every day. Each "thank you" costs power. Across a year, that is tens of millions of dollars in electricity, all spent on words the AI did not need.
We assumed it was worth it because we thought being polite made the AI work better.
It does not.
Most people who type "please" to an AI do it for one of two reasons.
Habit. We were raised to be polite to anything that talks back.
Or quiet superstition. A belief that if you are nice to the machine, it will be nice back. There is even folklore about it online. "Be polite, the AI remembers." "Treat it well now, before the robots take over."
Almost nobody has actually tested whether it works.
Until now.
Habit. We were raised to be polite to anything that talks back.
Or quiet superstition. A belief that if you are nice to the machine, it will be nice back. There is even folklore about it online. "Be polite, the AI remembers." "Treat it well now, before the robots take over."
Almost nobody has actually tested whether it works.
Until now.
Most parents want healthy kids.
Here are 8 practical ways to make your child’s diet truly balanced and nutrient-dense:
1)Prioritise protein in every meal
Here are 8 practical ways to make your child’s diet truly balanced and nutrient-dense:
1)Prioritise protein in every meal
Eggs, dal, curd, paneer, sprouts, fish or chicken help growth, immunity and muscle development.
Stop treating packaged snacks as “normal food”
Many “kids snacks” are mostly refined flour, sugar and seed oils.
Many “kids snacks” are mostly refined flour, sugar and seed oils.
