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This is how a human finger interacts with a 60GHz electromagnetic wave! A mm wave radar can precisely track and capture the smallest kind of motion! Simulated in #openEMS and rendered in #blender3d ! Dave Jones hackaday #radar #Engineering #physics #Science #education #b3d #electronics Altium KiCad PCB Elmer FEM...

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Sam M

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29,586 Aufrufe • vor 3 Jahren •via X (Twitter)

Bildung#openEMS#blender3d#radar#Engineering#physics#Science#education#b3d
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While the US finally had a break from tornadoes, it was CANADA that surprised many when it dropped a wedge tornado near Shoal Lake, Manitoba yesterday evening. In this radar loop, you can see where this tornado's origins came from starting with the outflow boundary (the line of weak reflectivity values the storm pops out from to the east of the radar site). Outflow boundaries concentrate extreme low-level rotation and force rapid upward motion, such that when supercells interact with these boundaries, the pre-existing spin can be stretched into tornadoes. These can happen super fast, and it remains something we don't fully understand. In the span of 30 minutes, we went from there being no discernible storm to there being a wedge on the ground, without a mesocyclone or a nudger. What is even more amazing is that despite Canada's radars being lower-resolution compared to what we have in the US, you can still quite clearly see the hook echo and the eventual debris ball that forms on reflectivity. Luckily, no injuries or fatalities have been confirmed from this tornado at this time.

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E pluribus unum – “out of many, one” – is not only a motto for the United States. It’s a good credo for microrobots. A research collaboration between Cornell and the Max Planck Institute for Intelligent Systems has shown how a swarm of microrobots spinning on a water surface can together generate the fluidic torque needed to manipulate passive structures without any physical contact. This collective behavior was demonstrated to operate gears and move objects, with the aim of eventually performing microscale tasks and biomedical procedures. “At small scales, contact-based manipulation can be limiting, and flow-based manipulation offers a great alternative,” said Kirstin Petersen, associate professor and an Aref and Manon Lahham Faculty Fellow in the Department of Electrical and Computer Engineering in Cornell Duffield College of Engineering and the paper’s co-senior author. “We’re showing that in spite of their size, adding more microrobots creates stronger flows and greater torque transfer.” The research published Feb. 25 in Science Advances. The lead author is Steven Ceron, Ph.D. ’22, now an assistant professor at the University of Michigan. More:

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🚨QUANTUM🚨: A brand new quantum state just appeared that links two fields we thought were separate 🧨 Scientists at Rice University have discovered a new quantum state of matter that connects quantum criticality — where electrons fluctuate between different phases — with electronic topology, which describes organized wave-like behavior of electrons. This hybrid state could open new paths for advanced computing, sensing, and materials. Source: Rice University news release on a study published in Nature Physics (January 2026). Uniphics explains this emergence directly through spin-wave dynamics in the ξM-field. Each Gyrotron is a stable 3D gyroscope formed by three orthogonal spin quanta — every quantum a tempest of whirling energy spinning clockwise or counterclockwise in its own plane. When local energy density and spin bias allow mixed configurations (similar to the musktron and maleytron patterns), the resulting spin-wave interference naturally produces both critical fluctuations and topological order at the same time. Negentropy favors these hybrid states because they represent lower-energy, organized patterns within the field. No new particles or exotic couplings are needed; the same principles that govern particle formation, the weak and strong forces through spin alignments, and the low-acceleration gravitational surge also allow these combined quantum behaviors in real materials when conditions permit. This turns the “unexpected new quantum state” into a predicted outcome of spin-wave physics once the three pillars are allowed to select stable hybrid configurations. How might recognizing that hybrid quantum states arise from mixed spin-wave interference change the way we search for new materials or design future quantum technologies? A Theory of Everything should be able to answer everything. Uniphics Explained Simply PDF: Chapters 1–10 free: Grokipedia #Uniphics #QuantumStates #SpinWaves #Topology #QuantumCriticality Grok xAI

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11.328: INF Cody Miller 5’11 | 178 lbs | R/R | 20yo • East Tennessee State .331/.430/.623/1.052, .457 wOBA, 10% BB/12% K, 135 wRC+ Super under-the-radar prospect. Scrappy, does a job type of guy. Limits Ks, draws walks, plays SS but can move around the infield and occasionally has gotten OF reps. Rakes a ton without question – has a nice track record of hitting at both the collegiate level with ETSU and in summer ball (APPY/NECBL) as well. Big development this year: power. Hit a combined 6 HRs in over 700 ABs between college and summer ball… he had EIGHTEEN this year alone! And there’s more of that when he inevitably adds muscle with help of pDev. This is one of those guys who nobody talks about and all of a sudden sprouts into a quality big league player.

G.G.

20,158 Aufrufe • vor 1 Jahr

This is the mechanical heart of every flight deck. At the core of this instrument is a high-speed mechanical gyroscope held within a series of gimbals. It relies on the physics of rigidity in space, meaning the spinning disc stays perfectly aligned with the Earth's horizon regardless of how the aircraft moves around it. When you see the outer casing tilt and dive, you are actually watching the plane move while the instrument stays perfectly still. For decades, this was the primary way pilots survived flying through thick cloud cover or at night. Without a visible horizon, the human brain can easily become disoriented, leading to a deadly condition called the graveyard spin. This device provides an objective visual reference that never fails, even if the entire electrical system of the plane goes dark. While modern airliners have transitioned to digital screens and solid-state sensors, these analog units remain critical. Many pilots still prefer them as a fail-safe backup because they operate on pure physics rather than software. It is a masterclass in engineering that remains just as relevant in the age of automation as it was eighty years ago. It is a timeless piece of safety technology. Would you trust a mechanical dial over a digital screen? Follow for more Technology updates Video: alternateb747
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This is the mechanical heart of every flight deck. At the core of this instrument is a high-speed mechanical gyroscope held within a series of gimbals. It relies on the physics of rigidity in space, meaning the spinning disc stays perfectly aligned with the Earth's horizon regardless of how the aircraft moves around it. When you see the outer casing tilt and dive, you are actually watching the plane move while the instrument stays perfectly still. For decades, this was the primary way pilots survived flying through thick cloud cover or at night. Without a visible horizon, the human brain can easily become disoriented, leading to a deadly condition called the graveyard spin. This device provides an objective visual reference that never fails, even if the entire electrical system of the plane goes dark. While modern airliners have transitioned to digital screens and solid-state sensors, these analog units remain critical. Many pilots still prefer them as a fail-safe backup because they operate on pure physics rather than software. It is a masterclass in engineering that remains just as relevant in the age of automation as it was eighty years ago. It is a timeless piece of safety technology. Would you trust a mechanical dial over a digital screen? Follow for more Technology updates Video: alternateb747

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HEAT WAVE: ARE MAMDANI'S SOCIALIST POLICIES WORKING FOR NEW YORKERS ROASTING IN THIS HEAT WAVE? New York just lived through one of its hottest stretches in over a decade. This is exactly when leadership gets tested. Mamdani's answer was a thermostat suggestion. Set your AC to seventy eight degrees. Turn off your lights. Unplug what you can. Meanwhile in Riverdale, a Bronx neighborhood with a large Jewish community, Con Edison simply cut the power. Thousands of families sat in the dark and the heat while the mayor asked everyone else to sacrifice a little more. You cannot conserve your way out of a grid that cannot carry the load. That is not a talking point. That is physics. New York shut down Indian Point, its reliable nuclear plant, and leaned hard into wind and solar promises. Now the hottest week of the year arrives and the lights go out in the Bronx. Socialism always sounds generous in a speech. It looks very different when your refrigerator stops running and your kids cannot sleep through a heat emergency. The mayor who built his campaign on standing up for working class neighborhoods just watched a working class neighborhood lose power while a celebrity wedding lit up Madison Square Garden across town. That contrast writes itself. Nobody needed to manufacture it. Good intentions do not keep a refrigerator cold. Reliable power does. New Yorkers just found out the hard way which one their mayor actually delivered.
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HEAT WAVE: ARE MAMDANI'S SOCIALIST POLICIES WORKING FOR NEW YORKERS ROASTING IN THIS HEAT WAVE? New York just lived through one of its hottest stretches in over a decade. This is exactly when leadership gets tested. Mamdani's answer was a thermostat suggestion. Set your AC to seventy eight degrees. Turn off your lights. Unplug what you can. Meanwhile in Riverdale, a Bronx neighborhood with a large Jewish community, Con Edison simply cut the power. Thousands of families sat in the dark and the heat while the mayor asked everyone else to sacrifice a little more. You cannot conserve your way out of a grid that cannot carry the load. That is not a talking point. That is physics. New York shut down Indian Point, its reliable nuclear plant, and leaned hard into wind and solar promises. Now the hottest week of the year arrives and the lights go out in the Bronx. Socialism always sounds generous in a speech. It looks very different when your refrigerator stops running and your kids cannot sleep through a heat emergency. The mayor who built his campaign on standing up for working class neighborhoods just watched a working class neighborhood lose power while a celebrity wedding lit up Madison Square Garden across town. That contrast writes itself. Nobody needed to manufacture it. Good intentions do not keep a refrigerator cold. Reliable power does. New Yorkers just found out the hard way which one their mayor actually delivered.

Bill Mitchell

240,901 Aufrufe • vor 3 Monaten

🚨 SCIENTISTS JUST BUILT A WIRE THAT IS ONLY ONE ATOM WIDE. Researchers have created linear carbon atomic chains essentially a string of carbon atoms bonded in a straight line suspended between two gold electrodes, and directly observed how electrons travel through them. These chains are one of the most extreme forms of matter: a true 1D carbon structure with extraordinary stiffness and unique electronic behavior. In this setup, electrons can travel through the chain in ways that reveal quantum effects not seen in conventional materials. Why this matters: • Linear carbon chains are predicted to be the strongest material known, stronger even than graphene or carbon nanotubes • They offer a platform to study true one-dimensional physics and quantum transport at the atomic scale • Understanding charge flow through single-atom chains could help design future molecular-scale electronics • The gold-carbon-gold junction acts like a prototype for atomic-scale wires and switches The deeper implication: We are now building and testing electronics at the ultimate limit of miniaturization literally one atom wide. These experiments don’t just push the boundaries of what’s physically possible; they give us a window into how matter behaves when reduced to a single dimension. The rules that govern bulk materials break down here, and new quantum phenomena emerge. This kind of work lays the groundwork for a future where electronic devices are engineered atom by atom rather than fabricated in bulk. We’re moving from “smaller transistors” to “wires made of single atoms.” How close do you think we are to practical molecular or atomic-scale electronics becoming reality? Follow for more frontier nanotechnology, quantum transport, and atomic-scale materials research.
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🚨 SCIENTISTS JUST BUILT A WIRE THAT IS ONLY ONE ATOM WIDE. Researchers have created linear carbon atomic chains essentially a string of carbon atoms bonded in a straight line suspended between two gold electrodes, and directly observed how electrons travel through them. These chains are one of the most extreme forms of matter: a true 1D carbon structure with extraordinary stiffness and unique electronic behavior. In this setup, electrons can travel through the chain in ways that reveal quantum effects not seen in conventional materials. Why this matters: • Linear carbon chains are predicted to be the strongest material known, stronger even than graphene or carbon nanotubes • They offer a platform to study true one-dimensional physics and quantum transport at the atomic scale • Understanding charge flow through single-atom chains could help design future molecular-scale electronics • The gold-carbon-gold junction acts like a prototype for atomic-scale wires and switches The deeper implication: We are now building and testing electronics at the ultimate limit of miniaturization literally one atom wide. These experiments don’t just push the boundaries of what’s physically possible; they give us a window into how matter behaves when reduced to a single dimension. The rules that govern bulk materials break down here, and new quantum phenomena emerge. This kind of work lays the groundwork for a future where electronic devices are engineered atom by atom rather than fabricated in bulk. We’re moving from “smaller transistors” to “wires made of single atoms.” How close do you think we are to practical molecular or atomic-scale electronics becoming reality? Follow for more frontier nanotechnology, quantum transport, and atomic-scale materials research.

TheNewPhysics

31,491 Aufrufe • vor 3 Monaten