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Classic physics can't explain where the light is coming from in Sonoluminescence. It's just sound waves resonating in water, how can light be produced? Fusion. Uh oh, how can that be? It's not hot enough. The water isn't boiling and glass isn't breaking. Cavitation is a negative energy pressure,...

303,107 просмотров • 1 год назад •via X (Twitter)

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When a nuclear reactor is switched on for the first time, an intense, almost hypnotic blue glow appears in the water surrounding the reactor core. This light is neither fire nor heat; it is Cherenkov radiation, a physical phenomenon that occurs when charged particles, such as high-energy electrons produced during nuclear fission, travel through a transparent medium faster than light can propagate within that same medium. While nothing can exceed the speed of light in a vacuum, light travels more slowly in materials like water. When a charged particle surpasses this reduced speed, it emits a coherent shock-like electromagnetic wave, often described as an optical analogue of a sonic boom. This radiation produces the distinctive blue glow. The colour arises because Cherenkov radiation is strongest at shorter wavelengths, which are dominated by blue and ultraviolet light. The phenomenon was first observed experimentally in 1934 and later explained theoretically, work that led to the Nobel Prize in Physics in 1958. Its explanation confirmed how relativity and electromagnetism operate in material media. Today, this deep blue light is both a warning and a scientific tool. It signals the presence of intense ionising radiation, while also being exploited in particle detectors, nuclear reactors, and neutrino observatories. It provides a rare, visible manifestation of subatomic processes that are otherwise hidden from direct human perception. #GottaLovePhysics #Physics

Erika 

276,219 просмотров • 8 месяцев назад

Here's an excellent video from Florian (follow) that shows charged water on the left and neutral water in the right. This is a visual confirmation of two known effects; Electrostatic induction and dielectric relaxation time. Electrostatic induction is like when a hair-rubbed balloon sticks to the wall, despite the wall being neutral; the balloon causes charges in the wall to polarize so the wall side near the balloon turns negative and the other side of the wall is positive. That's electrostatic induction and that's why you have raindrops that stick to a car window for hours of wind and gravity, rain has a small negative charge. Wouldn't work with tap water. Now, if you remove the balloon, the wall doesn't return to a neutral state immediately. It'd happen quickly if we had a balloon on the other side of the wall, but by itself this can take seconds, minutes, hours or even days, depending on the material and thickness. Glass is quite slow, and you can see the electric forces holding each other will hold off gravity for some time; and that the water greatly prefers not to be broken off, water is like an uncountable number of those walls in series, and they all cling to each other in proportion to how many balloons we have, ie how many excess electrons we have. Furthermore, when the water is extremely charged, it will not even leave the thin remnant layer of water that trails behind, as the cohesive internal forces outweigh those by induced to outside neutral surfaces.

N'Golo⚡Wizard.Talk

24,264 просмотров • 3 месяцев назад

This is the closest humanity has ever come to industrial fusion power. We’re witnessing the beginning of an energy revolution — the power of the Sun, without the danger of the bomb. 🚨 BREAKING: France just set the WORLD RECORD in Nuclear Fusion. 1,337 seconds (22 minutes) of sustained fusion at 50 million °C (90 million °F) — hotter than the Sun’s core. This isn’t sci-fi anymore. What this means for humanity — in hard stats: 🔹 Fusion vs Fission • Fission (atomic bombs) splits atoms → radioactive waste, meltdown risk • Fusion fuses atoms → near-zero waste, no chain-reaction runaway • 1 gram of fusion fuel = 8 tons of oil energy equivalent • Fuel source: Hydrogen from water — 1 liter of seawater can produce energy equal to 300 liters of petrol 🔹 Why France’s 22-minute run matters • To power a city, fusion must last minutes → hours • Before this: most reactors achieved seconds • Now: 22 minutes of stability = engineering breakthrough • Temperature: 5x hotter than the Sun’s core • Plasma confinement: record-breaking steady-state control 🔹 Benefits to mankind • Unlimited clean energy → zero carbon • No Fukushima, no Chernobyl risk • No long-lived nuclear waste • Could cut global emissions by 75–80% • One fusion plant = power for millions of homes 🔹 Is it dangerous? Fusion cannot explode. If something goes wrong → plasma cools in milliseconds. It’s 1,000,000× safer than fission. The “bomb” comparison is scientifically false.

Cultslinger07

39,204 просмотров • 7 месяцев назад

In the first video, people in Donetsk are seen greeting a water tanker. In the second video, during the rain, people try to collect at least a drop of water because the water pipeline from the Siverskyi Donets was destroyed by the Russians. When Donetsk was not occupied by Russia, the city hosted the European Football Championship, as well as concerts by Rihanna and Beyoncé. Now, there is no more running water in the city. According to the schedule, water only appears in taps once every three days, and even then it doesn’t reach every household, so water has to be delivered by tankers, with long queues forming for it. People use plastic bags as toilets, and this filth spreads everywhere. This is happening not only in Donetsk - water is supplied once every two days in a number of other cities, including Mariupol. This is how Russia 'liberated' Donbas. Why is this happening? In the past three and a half years - since Russia launched its full-scale invasion of Ukraine in February 2022 - reservoirs in Donetsk Oblast have significantly dried up. The water supply system from the Siverskyi Donets River was destroyed. The region’s reservoirs and underground water sources are not enough to meet the needs of the population, in part due to the extensive network of coal mines. When the self-proclaimed “DPR” and “LPR” were created in 2014, Ukraine did not cut off this water channel, as it was still supplying water to Mariupol, which remained under Ukrainian control. But at the start of the Russian invasion in February 2022, the situation changed: the Russian army, during its offensive, destroyed a unique hydraulic structure that had supplied the region’s largest cities with water. The Russian authorities decided to build a new canal - the Don–Donbas canal - which was supposed to begin in the Rostov-on-Don area. It soon became clear that the new water pipeline, first of all, could not provide the region with the necessary amount of water, and second, it was built with numerous violations, with a large portion of the budget embezzled during construction. Crimea is also suffering from a water shortage, and the situation is worsening. One of the reasons why Russia is striving to seize southern Ukraine is that it sees this as a way to "solve the water issue" for the occupied territories.

Anton Gerashchenko

476,786 просмотров • 1 год назад