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Now assume this energy is released in 1 sec. If you set up a coil of wire in a vertical plane, then the rate of change of magnetic field through the coil would generate a voltage. Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves. Could there be another route to calculating lightning energy that might pare down some of these errors? [31] The riskiest activities include fishing, boating, camping, and golf. Nonetheless, it was fun to “run the numbers.” –Paul Dvorak. To capture the energy, put your super-super capacitor right in the strike zone. Although commonly associated with thunderstorms at close range, lightning strikes can occur on a day that seems devoid of clouds. i am doing a presentation and need to find out "how much energy there is in a lightning strike?" The strikes and atmospheric flashes are not predicted, however the level of detail recorded by these technologies has vastly improved in the past 20 years. Most fulgurites we recovered were short fragments, though the longest ones found were a yard or two long. I’m not sure. Lightning detection systems have been developed and may be deployed in locations where lightning strikes present special risks, such as public parks. –Paul Dvorak. 2020 National Geographic Partners, LLC. Another effect of lightning on bystanders is to their hearing. Most CG flashes only "strike" one physical location, referred to as a "termination". When the spacing between them increases, the voltage needed to produce lightning increases. https://www.nationalgeographic.com/environment/natural-disasters/lightning.html, electrical discharge caused by imbalances. The molten sand then has to heat to just shy of 3000°C, when it vaporises. Image: Matt Pasek. By measuring the length of a lightning strike, multiplying it by the energy per length required to heat up the air to tens of thousands of degrees, we can calculate lightning’s energy. Florida’s weather is a bit more interesting; it’s actually the US state most often struck by lightning. So the power is: 1010 W-sec. I also have no idea how such an extraction of this energy might affect the storms that produce them – possitively or negetively. But with that much power, perhaps breaking the space-time continuum in a souped-up Delorean is not so unfeasible after all…. I don’t want to discourage anyone from trying to perfect this technology. It takes about 15 megajoules of energy to heat and vaporise a kilogram of sand. Although more common, intra-cloud (IC) and cloud-to-cloud (CC) flashes are very difficult to study given there are no "physical" points to monitor inside the clouds. So let’s assume one house needs 2,000 Watts/hour to keep the frig, furnace, computer, and all things plugged in going. Surge protectors will work for modest to even not-so-modest line voltage excursions. Air’s dielectric breakdown limit is 3.0 million volts per meter. Read the original article. The object struck may explode or subsequent fires destroy all of the little evidence that may have been available immediately after the strike itself. Williams says a typical lightning bolt bridges a potential difference (voltage) of several hundred million volts. 10,000,000,000,000__ is 10 tera__. is it possible to store lightning energy in a large capacitor?? Description: It has been painted with a lightning strike motif using anodizing effect paints over a metallic base coat. Central peninsular Florida hosts several sand mines that supply the raw material for roads and cement, golf courses and playgrounds. [29] Risk remains for up to 30 minutes after the last observed lightning or thunder. At any rate if we actually started to develope this technology it would most likely be at a slow enough pace for us to to be able ask and answer those questions long before they become crises events. Williams says a moderate thunderstorm generates several hundred megawatts of electrical power. In lightning damage claims, it is important to determine if the loss was, in fact, caused by lightning instead of being a simple mechanical breakdown. [30] A person injured by lightning does not carry an electrical charge, and can be safely handled to apply first aid before emergency services arrive. This phenomenon is responsible for more injuries and deaths than the above three combined, with reports such as "hundreds of reindeer killed by a lightning storm..." being a classic example. so, your calculations are slightly underpowered. NOAA online says 22 million cloud-to-ground strikes per year. For heights, the same number of men are two inches above average as are two inches below. A high power laser could be used to form an ionized column of gas, which would act as an atmospheric conduit for electrical discharges of lightning, which would direct the lightning to a ground station for harvesting. The resulting shock wave of thunder can damage the ears. In addition to electrical wiring damage, the other types of possible damage to consider include structural, fire, and property damage. That’s a lot for a lightning protection system to handle. Lightning interferes with AM (amplitude modulation) radio signals much more than FM (frequency modulation) signals, providing an easy way to gauge local lightning strike intensity. EMPs – the discharge process produces an electromagnetic pulse (. As you all recognize, this is just a paper experiment to get a handle on the power in a lightning bolt. The movement of aircraft through clouds can even cause lightning strikes.[3]. Most lightning protection devices and systems protect physical structures on the earth, aircraft in flight being the notable exception. ? There’s a lot of sand. They’re easy to find – since glass isn’t something you want in commercial sand, the mine filters them out. Replace 120kv with 100million volts. Most homes in the USA use around 1,000kWh to 2,000kWh per month – that is, about 33 to 66 kWh per day (1kWh = 1,000 Watt-hours). 1999: Closing the Gap on the Actual Numbers of Lightning Casualties and Deaths. [24] Close strikes can also generate electromagnetic pulses (EMPs) – especially during "positive" lightning discharges. The relatively high voltage drop around poorer electrical conductors (such as a human being), causes the surrounding air to ionize and break down, and the external flashover diverts most of the main discharge current so that it passes "around" the body, reducing injury. Lightning strikes can injure humans in several different ways:[4][5], Lightning strikes can produce severe injuries[4], and have a mortality rate of between 10% and 30%, with up to 80% of survivors sustaining long-term injuries. When it does so, it creates a new type of rock, called a fulgurite – a hollow tube formed as the lightning travels through the sand, vaporising it and melting its outer edges. https://en.wikipedia.org/w/index.php?title=Lightning_strike&oldid=986194208, Creative Commons Attribution-ShareAlike License. National Geographic Almanac of Geography (2005), "What happens when lightning strikes an airplane? Recall that 10 10 Watts is 10,000,000,000 or 10 billion Watts. In my calculations, I assumed 100% capture efficiency.

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