NEW DAWNING

[Math Hub @mathhub_vn]

The Dirac matrices (more commonly called gamma matrices) are a set of matrices introduced by Paul Dirac in his formulation of the Dirac equation.

They are fundamental in quantum mechanics and quantum field theory, especially for describing spin-½ particles such as the electron.

Paul Adrien Maurice Dirac (1902–1984) was one of the greatest theoretical physicists of the 20th century. He made groundbreaking contributions to quantum mechanics and quantum electrodynamics, and is regarded as one of the founders of modern physics...

[Mathematica @mathemetica]

The Coriolis Effect: the apparent deflection of moving objects due to Earth’s rotation.

The formula is F = −2m(ω × v), where ω is Earth’s angular velocity and v is the object’s velocity.
- In the Northern Hemisphere, objects deflect right
- In the Southern, left; none at the equator.

It shapes global weather patterns, ocean currents, and the paths of aircraft and long-range projectiles.

[Cosmos Archive @cosmosarcive]

The Schwarzschild Metric is the exact solution to Einstein's field equations that describes the geometry of spacetime surrounding a spherical, non rotating mass.

It provides the foundation for understanding gravitational time dilation, the bending of light, planetary motion, and black holes within General Relativity.

Rather than treating gravity as a force, the Schwarzschild Metric shows how mass curves spacetime and determines the paths that objects and light follow.

[Kekius Maximus @Kekius_Sage]

Ask a physicist what quantum mechanics means and watch the room fall apart.

Bohr: "There is no reality until you measure it."

Einstein: "Something is missing. God doesn't play dice."

Heisenberg: "You can't know everything about a particle. Not because your tools are bad. Because nature won't let you."

Everett: "Everything happens. The universe splits every time."

Bohm: "The particle always had a position. You just can't see the hidden layer."

They all use the same math. Get the same predictions. And completely disagree on what's actually going on.

90 years later, nobody's won the argument.

[Manifest_Lord @Manifest_Lord]

Two neurologists who run the largest brain health outreach program in america just exposed how to slash dementia risk by 60%

(without meds or supplements)

Your brain wil thank you for reading this.. 🧵

[Cosmos Archive @cosmosarcive]

What is our best current description of the universe?

Not a Theory of Everything.

Just two remarkably successful frameworks working side by side: the Standard Model, which explains particles and three fundamental forces, and General Relativity, which explains gravity.

The challenge that remains is one of the biggest in physics: finding a quantum theory of gravity that unites them both.

[World of Science @Science_TechTV]

At the University of Minnesota, a swine heart beats outside the body, without a pacemaker, connected to machines that keep it oxygenated. It has its own internal electrical system. It’s not a simulation: it’s a real organ beating outside the chest.

[Mechanical Knowledge @mechanical_4u]

Genius Gear Rack Mechanism

This smart rrack and pinion mechanism converts rotational motion into precise linear movement. A simple yet powerful example of how mechanical design, gear systems, and motion transfer work together in engineering applications.

[NEW DAWNING @NEWDAWNING2]

@WarMonitor3 what abour orkhiv offensive

[Ammanichanda @Arkasiraee]

Modern canard-equipped fighters such as Rafale and Euro-fighter Typhoon rely on relaxed static stability airframes where lift and pitch stability are continuously managed by fly-by-wire systems, with canards acting as high-authority moment generators across Mach 0.3-2.0 envelopes, sustaining 6-9 g with transient peaks near 12-15 g, where dynamic pressure can reach 40-80 kPa in low-altitude high-speed regimes.

The core structural system uses carbon fiber reinforced polymer skins with high-modulus layups for stiffness, paired with titanium root fittings that absorb multi-kN·m hinge moments during extreme deflection cycles, while spars are optimised for 10⁴-10⁵ flight hour fatigue life rather than peak load failure.

Actuation is dominated by dual-redundant hydraulic servo systems operating in the 20-35 MPa pressure class, using electro-hydraulic servo valves with millisecond response latency, where even small timing delays introduce phase lag in closed-loop stability control. Newer electrohydrostatic and electromechanical actuators reduce system complexity but remain constrained by thermal saturation, gearbox wear, and power density limits under sustained oscillatory loading.

The aerodynamic regime is governed by vortex–shock interaction in the transonic band (Mach 0.8-1.2), where canard-generated vortices enhance wing lift but introduce nonlinear hinge moment oscillations, forcing continuous re-linearization of stability margins using IMU and air data fusion at 100-200 Hz control loop rates.

Testing is fundamentally fatigue-driven rather than peak-driven, relying on hydraulic endurance rigs, structural vibration replication, and long-cycle qualification where micro-backlash, seal degradation, and actuator hysteresis drift become primary life-limiting factors.

Stealth penalties arise from additional scattering surfaces, variable canard deflection geometry, and vortex-distorted flow fields that break edge alignment assumptions, producing dynamic radar cross-section variation rather than static signature control.

The dominant constraint is maintaining low-latency aerodynamic moment control in vortex-dominated nonlinear flow while preserving fatigue integrity of composite structures and precision actuation chains across thousands of flight hours.

[NEW DAWNING @NEWDAWNING2]

@curious_X_ @sambellcumi Not around
Only one way
Outward

[Gaurav kochar @gaurav_kochar]

🚨 BREAKING: The Pacific may be preparing something the modern climate record has never seen before.

The latest 2026 model ensemble is projecting a possible +3.3°C Niño 3.4 anomaly by December.

That number is almost hard to comprehend.

Historical giants:

🔹 1997–98: ~+2.4°C
🔹 2015–16: ~+2.6–2.8°C
🔹 1877: ~+2.5°C
🔴 2026 forecast: +3.3°C

This isn’t “Super El Niño.”

This is uncharted territory.

And before people say “just one model”…

No.

📊 13 climate models
📊 643 ensemble members
📊 Median signal still screaming: EXTREME

If this scenario even comes close to verifying, the planet could face a climate whiplash event:

🔥 Explosive global heat
☀️ Droughts intensifying across vulnerable regions
🌧 Flood disasters elsewhere
🌾 Crop stress & food price volatility
🔥 Wildfire danger surging
🌊 Massive weather disruptions rippling worldwide

NOAA already says El Niño is likely to emerge soon (82% probability) and persist into winter 2026-27, though peak strength remains uncertain. (Climate Prediction Center)

Will it really hit +3.3°C?

Maybe not.

But the fact that the models are even producing numbers this extreme should make everyone pay attention.

Because if the Pacific pulls this off…

2026-27 may not be remembered as a normal El Niño year.

It may be remembered as the year the climate system went off the historical chart.

#ElNiño #Climate #Weather #GlobalWarming #ENSO

[NEW DAWNING @NEWDAWNING2]

@Aojncc @sherine412 تستاهل

[NEW DAWNING @NEWDAWNING2]

@dunyasalbilim Moves cargo outward only
Dydein moves it inwards

[NEW DAWNING @NEWDAWNING2]

@NightSkyToday Not only kinesin
But dydein as well
Each one resembles one way street inside the cell

[NEW DAWNING @NEWDAWNING2]

@DevanaUkraine Reminds me of the story of saint Martin

[TheNewPhysics @CharlesMullins2]

The 5D glass disc uses ultrafast lasers to create five-dimensional nanoscale structures inside fused silica glass, allowing it to store up to 360 terabytes while surviving extreme temperatures (up to 1,000°C) and radiation with zero data degradation.

Source:
5D Optical Data Storage by Ultrafast Laser Nanostructuring in Glass
Scientific Reports (2016)
https://t.co/aveZYLZuU7

If we could preserve one piece of human knowledge on these discs for the next 10,000 years, what would you choose and why?

[Mühendislik Harikası @muhendisIiktr]

1937 yılında verilen bu ders, otomobil diferansiyellerinin nasıl çalıştığını günümüz videolarının çoğundan daha iyi anlatıyor.

[Brian Roemmele @BrianRoemmele]

At the beginning of the twentieth century, twelve men sat down to dinner knowing exactly what awaited them: every bite they ingested was contaminated.

They eat it so you didn’t have to. The only thing is that industry found and exploited loopholes.

They ate anyway, three times a day, every single day, for five long years. They did it because the American table had become a quiet slaughterhouse.

Milk dosed with formaldehyde to hide the souring. Meat dusted with borax to disguise rot. Vegetables lacquered green with copper sulfate. Desserts sweetened with lead and mercury. This was not carelessness. It was commerce, protected by silence and sanctioned by law.

Dr. Harvey Washington Wiley, chief chemist at the Department of Agriculture, understood exactly what was happening. He knew that millions of families were feeding their children slow poison with every meal, and that no statute on the books required a single word of truth on a label.

So he stopped waiting for permission.

In the basement of his government office in Washington, he built a different kind of laboratory: a formal dining room dressed in white linen and set with proper china.

There he offered something radical and terrible free meals in exchange for the daily consumption of the very chemicals flooding the food supply. Borax. Formaldehyde. Salicylic acid. Sulfurous acid. Volunteers had to sign away their right to sue the government if the experiment killed them. Students, clerks, and letter carriers stepped forward anyway.

They were not reckless.

They were willing to let their own bodies become the evidence that might save everyone else’s. The newspapers named them the Poison Squad.

At first the meals looked ordinary; the poison arrived hidden inside the food. Later, for precision, it came in capsules. The men joked in the beginning. Then the jokes stopped. Their skin grew pale and waxy. Weight fell from them in visible stages. Nausea became permanent. Stomach pain turned savage. Headaches folded them double. Every day they were weighed, examined, and logged like specimens. Not one of them walked away.

The country watched the slow spectacle with a mixture of fascination and unease. The food industry responded with lawyers, lobbyists, and character attacks on Wiley. None of it mattered. The data was pitiless: the substances long declared “harmless” were systematically destroying healthy young men.

Five years of deliberate suffering produced an undeniable result. In 1906 the Pure Food and Drug Act became law the first federal statute that forced manufacturers to tell the truth about what they were selling and made it illegal to poison the public for profit. It was the foundation on which the FDA would later stand.

The victory belonged to Wiley’s stubborn courage, but it belonged far more to the twelve men who had volunteered to become living proof. They left the experiment with no medals, no pensions, and almost no public recognition. They simply returned to their ordinary lives. Yet every ingredient list we now read, every expiration date we trust, every time we open a refrigerator without fear we are living inside the protection they purchased with their own bodies.

They swallowed poison so the rest of us would not have to. Their names are mostly forgotten. Their courage is not. It sits on every shelf in every kitchen in America.
But the industry did not surrender. It simply learned a more sophisticated game.

When blatant adulteration became illegal, the manufacturers discovered they could invent entirely new classes of substances emulsifiers, stabilizers, flavor enhancers, artificial colors, preservatives, texture agents and slip them into the food supply through a loophole called “Generally Recognized as Safe.”

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[Anne Morse @Anne_red_head]

Here's a fun comparative fact:
Only 4% of births in India in 2024 were 4th or higher order births.

But in the U.S., about 13% of births were 4th or higher births.
🇺🇸🇮🇳