Manfred

In order to be able to think, you have to risk being offensive - Jordan B Peterson

[RossRadio @cqcqcqdx]

Collins Radio Co. - AN/GRC-19
Consisting of the T-195 transmitter - an auto tune unit capable of around 100+ watts and the R-392 receiver that was based on the highly successful Collins R-390 receiver.

[ElectronicsNotes by Ian Poole @ElecNotes]

Meet the Thermistor - the useful, low cost temperature sensor

Whether it’s preventing a lithium-ion battery from overheating or ensuring a digital thermostat triggers at the perfect moment, the humble thermistor (a blending of "thermal" and "resistor") is a cornerstone of modern electronics.

While the concept of resistance changing with temperature dates back to Michael Faraday in 1833, today’s thermistor technology is highly sophisticated, incredibly cost-effective, and split into two primary types:

🔹 NTC (Negative Temperature Coefficient): Resistance decreases as temperature increases.
- Best for: Digital thermostats, low-temperature thermometers, battery pack monitoring, and in-rush current protection in power supplies.

🔹 PTC (Positive Temperature Coefficient): Resistance increases as temperature increases.
- Best for: Over-current protection. They act like a resettable fuse—if a circuit draws too much current, the device heats up, resistance spikes, and the current safely throttles down.

Material Matters:
Did you know that material composition dictates their temperature limits?

* Metallic Oxides (Manganese, nickel, cobalt, etc.) excel in everyday applications from 200K to 700K.

* Single-Crystal Semiconductors (Silicon and Germanium) handle the deep freeze, operating safely down near absolute zero (below 100K)!

⚙️ Design Tip: When implementing them in your circuits, always account for the Self-Heating Effect. The very current you pass through a thermistor to measure its resistance can introduce its own heat, potentially skewing your readings if not minimized!

Dive deeper into all aspects of thermistor technology check the link jn the comments👇

#Electronics #HardwareDesign #ElectricalEngineering #EmbeddedSystems #Sensors #TechEducation

[Physics In History @PhysInHistory]

Prof. Walter Lewin lights up 5 cigarettes to demonstrate Rayleigh scattering during a MIT lecture ✍️

[Manfred @hellbraun26]

@iqrarulhassan Individual reform - - > Family culture - - > Community norms - -> Institutional pressure - - > Policy change.
No law fixes a society whose individuals haven't internalized these values.

[Manfred @hellbraun26]

@gypsiez سائينءَ الاهي پُراڻو آهي. پر واھ جو آ.

[Pedro Sánchez @sanchezcastejon]

The world, Europe, and Spain have faced this critical moment before. In 2003, a few irresponsible leaders dragged us into an illegal war in the Middle East that brought nothing but insecurity and pain.

Our response then must be our response now:

NO to violations of international law.

NO to the illusion that we can solve the world’s problems with bombs.

NO to repeating the mistakes of the past.

NO TO WAR.
https://t.co/KpRjBfwY4B

[Ferney Munoz @Ferney_Munoz]

Looks like Stew Goumans from @Ekahau achieves holiness status when he is closest to the great spectrum analyzer inside the Sidekick 2. #WiFi fun during Wi-Fi 7 testing of STR and MLO of @Ubiquiti APs during #WLPC Phoenix 2026 night sessions.

[Manfred @hellbraun26]

@ScholarshipfPhd Hi

[Shehzad Roy @ShehzadRoy]

Vaccine, heart attack and H-ki itching…all explained by Umme Aimen, a young student of @ZindagiTrust Fatima Jinnah Govt School.

[Shehzad Roy @ShehzadRoy]

Why do competent people fail the CSS exam? Little Khadija, a student of @ZindagiTrust KPS Government School, explains

[Lord Bebo @MyLordBebo]

Is this the best job interview there is?

[Jasper Truth 🇺🇸 🇨🇦 @Jasper_Truth]

CLEAN YOUR LIVER...
I use Moringa and Milk Thistle

[That Cranky Guy @thatcranky_guy]

Life of 90's kids back then

[Sam Altman @sama]

Today we launched a new product called ChatGPT Agent.

Agent represents a new level of capability for AI systems and can accomplish some remarkable, complex tasks for you using its own computer. It combines the spirit of Deep Research and Operator, but is more powerful than that may sound—it can think for a long time, use some tools, think some more, take some actions, think some more, etc. For example, we showed a demo in our launch of preparing for a friend’s wedding: buying an outfit, booking travel, choosing a gift, etc. We also showed an example of analyzing data and creating a presentation for work.

Although the utility is significant, so are the potential risks.

We have built a lot of safeguards and warnings into it, and broader mitigations than we’ve ever developed before from robust training to system safeguards to user controls, but we can’t anticipate everything. In the spirit of iterative deployment, we are going to warn users heavily and give users freedom to take actions carefully if they want to.

I would explain this to my own family as cutting edge and experimental; a chance to try the future, but not something I’d yet use for high-stakes uses or with a lot of personal information until we have a chance to study and improve it in the wild.

We don’t know exactly what the impacts are going to be, but bad actors may try to “trick” users’ AI agents into giving private information they shouldn’t and take actions they shouldn’t, in ways we can’t predict. We recommend giving agents the minimum access required to complete a task to reduce privacy and security risks.

For example, I can give Agent access to my calendar to find a time that works for a group dinner. But I don’t need to give it any access if I’m just asking it to buy me some clothes.

There is more risk in tasks like “Look at my emails that came in overnight and do whatever you need to do to address them, don’t ask any follow up questions”. This could lead to untrusted content from a malicious email tricking the model into leaking your data.

We think it’s important to begin learning from contact with reality, and that people adopt these tools carefully and slowly as we better quantify and mitigate the potential risks involved. As with other new levels of capability, society, the technology, and the risk mitigation strategy will need to co-evolve.

[Nature Chapter @NatureChapter]

Wow 👌

[Manfred @hellbraun26]

@ShamaJunejo @RehamKhan1 توهان جو مقصد آهي ته نواز شريف، شھباز شريف، اسحاق ڊار، زرداري، خورشيد شاهه وغيرهه ملڪ تي وزن آهن؟ ۽ اِنهن کي تڙي ڪڍڻ گھرجي؟

[Manfred @hellbraun26]

@ShamaJunejo حقيقت ۾ نه رھڻ سڀني مسئلن جو حل آهي، اُن حساب سان اِتي جا ماڻهو الاهي امير آهن ۽ خرچ بلڪل ناهي، سڀ ڪجھ سستو آ.

[That Cranky Guy @thatcranky_guy]

This is an old video of Manoj Bajpayee that shows what an excellent actor he is.

[Olympus @brewbeancafe]

🎙️

[Wi-Fi Alliance @WiFiAlliance]

Opening the full #6GHz band to unlicensed use is key to unlocking the full potential of #WiFi. The @DynamicSpectrum is one of many urging regulators to prioritize license-exempt access to support broader connectivity and innovation: https://t.co/OQwmPVCr4R