Tesla didn’t just show wireless power was possible he mapped the Earth’s frequency and left behind a blueprint more relevant now than ever to make wireless power ultra efficient and safe. Buried in his notes was a number: 710 microfarads. Not a guess. A calculation. A forgotten equation with global implications. He modeled the Earth as a spherical capacitor— and derived its electrostatic capacitance.. With Earth’s radius (6.37 x 10⁶ m) and vacuum permittivity (8.85 x 10⁻¹² F/m), the result was: C ≈ 710 μF He treated the Earth not just as ground… but as a drum searching for its pitch, so he could make the world sing with power. By modeling the planet as a spherical conductor, Tesla calculated Earth’s electrostatic capacity using its radius: 6,370 km. The result? 710 μF—a capacitance that became the foundation for his most ambitious dream: Global, wireless energy. The key? Zenneck surface waves—non-radiating electromagnetic fields that travel along the Earth-air interface, hugging the boundary with minimal loss. Tesla’s Wardenclyffe Tower wasn’t ornamental. It was a tuned resonator—built to couple energy into the Earth itself. Modern researchers whom I know personally and have seens detailed experiments that lead (Shen et al., 2020, Nature,Scientific Reports) have now confirmed this mode: Zenneck waves are real, can be launched, and exhibit low-loss surface-guided transmission—just as Tesla claimed. Decades later, scientists confirmed the Schumann resonance—a standing wave oscillating between Earth and ionosphere at 7.83 Hz. Tesla didn’t stumble onto it. He tuned into it. Today, we still chase energy through combustion, friction, and resistance. But Tesla saw another path: resonance and implosion. He believed power could be transmitted— not through wires, but through harmonics. Not extracted, but entrained. What if the real grid was beneath our feet all along? And what if Tesla’s 710 μF wasn’t just a relic— but a starting point for the world we’re meant to build? This wasn’t theoretical trivia. It was the foundation for a global transmission system—grounded in Earth resonance and wave mechanics. His approach relied on Zenneck surface waves—non-radiating TM (transverse magnetic) mode EM waves that propagate along the interface between a conductive surface (Earth) and air. Unlike traditional radio waves, Zenneck waves remain confined to the boundary layer, with low attenuation over distance—especially when phase-locked to a resonant frequency. Wardenclyffe Tower wasn’t a broadcast antenna. It was a vertically-coupled resonator, designed to inject energy into this mode using high-voltage, low-frequency pulses synchronized to the Earth’s natural harmonics. #Tesla #WirelessPower #ZenneckWave #Resonance #Capacitance #Wardenclyffe #SchumannResonance #CleanEnergy #Electromagnetics #Physics #FutureOfEnergy #TeslaWasRight | 65 comments on LinkedIn
Keyboards!
#keyboards #keycaps #keyswitches #geekhack #hardware #vintagtecomputing #retrocomputing #tech #typing #input #CherryMX #Topre #capacitance
Do you use a water sensor for soil?
Are you playing with these sensors?
Get yourself educated!
#TDR, #FDR, #capacitance, #resistance: A comparison of common soil moisture sensing methods, their pros and cons, and their applications.
https://www.metergroup.com/en/meter-environment/measurement-insights/tdr-fdr-capacitance-compared
#soil #soilmoisture #soilmoisturesensor
#sensor #watersensor #moisturesensor
#lorawan #arduino #hobbyfarm
#metergroup
Cascade Failures, Computer Problems, and Ohms Law: Understanding the Northeast Blackout of 2003
We've all experienced power outages of some kind, be it a breaker tripping at an inconvenient time to a storm causing a lack of separation between a tree and a power line. The impact is generally localized and rarely is there a loss of life, though it can happen. But in the video below the break, [Brady] of Practical Engineering breaks down the Northeast Blackout of 2003, the largest power failure ever experienced in North America. Power was out for days in some cases, and almost 100 deaths were attributed to the loss of electricity.
[Brady] goes into a good amount of detail regarding the monitoring systems, software simulation, and contingency planning that goes into operating a large scale power grid. The video explains how inductive loads cause reactance and how the effect exacerbated an already complex problem. Don't know what inductive loads and reactance are? That's okay, the video explains it quite well, and it gives an excellent basis for understanding AC electronics and even RF electronic theories surrounding inductance, capacitance, and reactance.
So, what caused the actual outage? The complex cascade failure is explained step by step, and the video is certainly worth the watch, even if you're already familiar with the event.
It would be irresponsible to bring up the 2003 outage without talking about the Texas ERCOT outages just one year ago- an article whose comments section nearly caused a blackout at the Hackaday Data Center!
#science #acpower #blackout #capacitance #grid #inductance #outage #powergrid #reactance
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Allen Tien, MD, MHS mdlogix.com 94,698 田一彦
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