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#lightning

7 posts6 participants0 posts today
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Miss Gayle

"Storm clouds generate massive electrical potentials...but nowhere is the electric field strong enough to ionize the air and start a miles-long branching bolt. Something needs to create the initial spark...

Using precise radio-wave detection in three dimensions, scientists at Los Alamos National Laboratory have determined that the sparks are provided by cosmic rays...atomic-scale particles traveling at incredible speeds..."

Link: dendroica.substack.com/p/inter

Interlude: Galactic Lightning And a real planetary alignment Markael Luterra, Mar 27, 2025 Image of a grey sky over water, small boats and rocks in the foreground, above a lightning bolt reaches from the sky to the water. Atef Ouni, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Amidst the chaotic headlines last week, the news you probably didn’t hear is that scientists have effectively confirmed that cosmic rays spark lightning. I want to share why I find this absolutely wondrous, which means I first need to try to describe some physics at the boundaries of my understanding. There is a problem with lightning. The problem is that it shouldn’t actually happen. "When these extra-powerful particles collide with atoms in the atmosphere, at a rate of about 15 per square mile per second, they generate a chain reaction of nuclear physics, each impact creating more particles like a series of billiard breaks until over a million balls are in motion and the energy has finally been exhausted. This is called an “air shower”, and it’s happening all around us all of the time, and it’s how our atmosphere protects our bodies and all life on Earth."
#Lightning#Weather#AstroPhysics
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2tout2rien

🌋⚡ Quand la nature déchaîne toute sa puissance ! ⚡🌋

Un instant saisissant : l’éruption du volcan Colima, projetant cendres et lave en fusion, tandis qu’un éclair frappe en pleine nuit, sous un ciel étoilé. 🌠🔥 Une scène digne d’un film apocalyptique ! 😍
📸 Sergio Tapiro

#Volcano#Colima#Lightning
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