If you're the size of an insect then the electric field is far more immediately obvious and potentially useful.
https://www.quantamagazine.org/the-hidden-world-of-electrostatic-ecology-20240930/
#electric #electricfield #bees #insects #Quanta #physics #biology #wildlife

Rubbing a balloon on your hair can build a significant electrical charge. Water droplets have the same issue when they slide across a hydrophobic, electrically-insulated surface. A new study models why these charges build up and tests the model both experimentally and through simulation. They focused their theory on three effects that determine how much charge builds up. The first is a two-way chemical reaction that continuously creates charge at the interface, with positive charge building in the drop. Secondly, the drop’s contact angle with the surface sets how many protons can build up at the contact line, thereby affecting the electrical field they generate. And, finally, fluid motion at the rear of the drop deflects protons upward, shifting the electrical field. In particular, their model predicts that the higher contact angles of hydrophobic surfaces should increase charge build-up and faster sliding velocities should slow charge build-up, both of which agree with experiments.

The model should help researchers understand various charging scenarios, like those found on self-cleaning surfaces, in inkjet printing, and in semiconductor manufacturing. In the last scenario, rinsing semiconductor wafers in ultrapure water can build up charges in the kilovolt range, which is enough to damage the product. (Image credit: D. Carlson; research credit: A. Ratschow et al.; via APS Physics)

https://fyfluiddynamics.com/2024/07/how-water-droplets-charge-up/

#contactAngle #droplets #electricField #fluidDynamics #hydrophobic #physics #science #staticElectricity

Tsinghua University researchers have developed an ultra-sensitive microcavity #ElectricField sensor with a bandwidth up to 3 orders of magnitude wider than #quantum sensing approaches, which is a huge breakthrough in building electric field sensing networks.

Discerning weak electric fields has important implications for cosmology, quantum technology, and identifying power system failures

http://buff.ly/3vyHyHx #research #electricity #technology #cosmology

Electric Pulses Induce Lung Cancer Immune Response

Results of a clinical trial show a lung cancer therapy using highly focused pulses with electrical energy show signs of immune responses that can treat the patients' tumors.

https://sciencebusiness.technewslit.com/?p=45375

#News #Press #Science #Business #Cancer #LungCancer #Therapy #ElectricField #ClinicalTrial #Resection #Surgery #Ablation #MedicalDevice #ImmuneSystem #BCells #TCells

https://www.nature.com/articles/s41598-022-24914-y

"The element realized herein is shown to bear the three required and necessary fingerprints of a meminductor, and its place on the periodic table of circuit elements is discussed by extending the genealogy of memristors to meminductors."

#electronics #circuits #ee #electricalEngineering #memristors #meminducance #inductance #electricity #inductor #electricField

Wrapping up a new video on electric potential energy tomorrow . . . in this scene I'm covering the case of uniform electric field. #physics #E&M #iteachphysics #science #electricfield #potentialenergy

How do Maxwell's equations predict that the speed of light is constant?🤔 (photo credit: Fermat's Library)

Maxwell's equations, a set of coupled partial differential equations (PDEs), describe the behaviour of electric and magnetic fields and predict that the speed of light is constant in all reference frames, which is a fundamental principle of the theory of relativity. #Electromagnetism #Relativity #SpeedOfLight #LightSpeed #Light #ElectricField #MagneticField #PDEs #Maxwell #CoupledPDEs