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How does thunder and lightning work?
Lightning is a discharge of electrical energy that builds up within a storm. The charges develop because a storm causes air to move around which rubs against itself to generate electrical charges. Eventually the charge increases to a point where the electricity can flow through the air. Once an electric discharge starts it provides a better path for more electrical flow than normal air due to ionization which results in a sudden, large and fast discharge (i.e. a lightning bolt).Negative charges at the bottom of the clouds repel the negative charges on the surface of the earth. This leaves the surface of the earth positive (the electrons on the ground migrate to get further away from the other electrons in the cloud). From there, the negative electrons from the cloud attract the positive electrons on the ground, which pulls electrons from the air. This usually occurs at a high point on the ground.Answer:When you have a thunderstorm that forms from convection and differences in temperature across a frontal boundary, you start to get differing charges building up between the cloud base and the ground. When the difference in charge gets great enough between the cloud base and the ground, the air becomes a conductor instead of being an insulator and a negatively charged stepped leader comes down from the cloud base and meets a positively charged return stroke from the ground. When this happens, we see visible lightning and positive charge is carried up into the cloud base, while negative charge is carried down into the ground, essentially it is a transfer of both of the charges involved in the electrical discharge. This lightning strike is called a negative strike because the stepped leader is negatively charged. There is also something called a positive lightning strike, where enough differing charge builds up between the top of the cumulonimbus cloud and the ground and the same transfer of positive and negative charges happens, but the stepped leader from the top of the cloud in this case is positively charged and the return stroke from the ground is negatively charged. Initially the top of the cloud is positively charged, the cloud base is negatively charged, and the ground is positively charged. Positive strikes are possible after several negative strikes between the cloud base and the ground have happened. Lastly, lightning strikes can go out a maximum of 10 miles ahead and behind the storm, so remember just the because it looks like the storm has passed, doesn't mean the threat of lightning doesn't exist. This is a more complete answer to your question. If you have any questions about the concepts that I presented in my answer, feel free to drop me a message on my message board.When you have a thunderstorm that forms from convection and differences in temperature across a frontal boundary, you start to get differing charges building up between the cloud base and the ground. When the difference in charge gets great enough between the cloud base and the ground, the air becomes a conductor instead of being an insulator and a negatively charged stepped leader comes down from the cloud base and meets a positively charged return stroke from the ground. When this happens, we see visible lightning and positive charge is carried up into the cloud base, while negative charge is carried down into the ground, essentially it is a transfer of both of the charges involved in the electrical discharge. This lightning strike is called a negative strike because the stepped leader is negatively charged. There is also something called a positive lightning strike, where enough differing charge builds up between the top of the cumulonimbus cloud and the ground and the same transfer of positive and negative charges happens, but the stepped leader from the top of the cloud in this case is positively charged and the return stroke from the ground is negatively charged. Initially the top of the cloud is positively charged, the cloud base is negatively charged, and the ground is positively charged. Positive strikes are possible after several negative strikes between the cloud base and the ground have happened. Lastly, lightning strikes can go out a maximum of 10 miles ahead and behind the storm, so remember just the because it looks like the storm has passed, doesn't mean the threat of lightning doesn't exist. This is a more complete answer to your question. If you have any questions about the concepts that I presented in my answer, feel free to drop me a message on my message board.
How do you protect standing crops from being destroyed?
Farmers put fences around their land to keep thieves and animals out. They put nets over blueberry bushes to keep birds from eating them. They shoot squirrels to protect pecan trees so they can harvest a crop and not have their pecans eaten by animals. They try to harvest wheat as soon as it is ripe so a lightning strike does not set it afire and burn up the crop or a hail storm does not beat it into the ground.
Do plants react to electrical impulse?
AnswerPlants have a certain amount of water or sap in them and could possibly conduct electricity.IN ADDITION:When lightning strikes the top of a tree and the lightning makes its way all the way to the ground, I would definitely say yes they do.
Can lightning appear to be colored black?
Dark Lightning Bolts?Lightning, being a glowing streak of light, can't be black because black is a color made from the absence of light. However, there IS such thing as a black rainbow. They're called "moonbows" because they're caused by moonlight and moist air rather than sunlight and rain.
Is it illegal to service automobiles without being ASE certified?
No.
Does lighting always strike the tallest objects?
Lightning tends to strike tall objects such as trees, buildings, or towers because they offer an easier path for the electrical discharge to reach the ground. However, lightning can strike the ground directly or move horizontally, so being the tallest object does not guarantee a strike.
What advantage did Zeus have over Percy in The Lightning Thief?
Whenever Percy is high off the ground, Zeus (being god of the sky) can simply strike him with lightning.
Can lightning strike a concrete door stoop?
Yes, lightning can strike a concrete door stoop if it is the highest point in the vicinity. Concrete is a good conductor of electricity, so the energy from the lightning strike would likely travel through the stoop into the ground. It is important to take precautions during a thunderstorm to minimize the risk of being struck by lightning.
Is there danger from lightning if it is not raining?
Yes, there is still a danger from lightning even if it is not raining. Lightning can strike several miles away from a thunderstorm and can occur in clear skies. It is important to take precautions such as seeking shelter indoors during a storm to avoid being struck by lightning.
How can you do to prevent yourself from being struck by lightning?
If you're outside - make for open spaces, such as a sports field or park. Crouch down on the ground - the lower you are - the more chances a lightning strike will hit something taller than you.
What happens to an electric charge which a lightning rod receives from a strike?
Lightning is caused by electrons building up, either in the ground or in the clouds. When this electric potential becomes greater than the dielectric strength of the air between ground and clouds, the electrons will flow from one to another in the form of lightning. The dielectric strength of air is directly related to the distance between the two objects of interest. A lightning rod works by being higher than whatever it is meant to protect, so as electrons build up, lightning will strike the rod instead of whatever it is protecting. The lightning rod provides a low impedance path to ground, acting as a drain for the electrical build up. So it attracts lightning by being higher than whatever it is protecting; it also discharges the electrical potential by providing a low impedance path to ground.
What is the function of lighting conductor?
A lightning conductor, also known as a lightning rod, is designed to protect buildings and structures from being damaged by lightning strikes. It provides a safe path for the electrical current from a lightning strike to be conducted to the ground, preventing damage to the building and reducing the risk of fire or injury.
How do lightning rod protect building from lightning?
The main way a lightning rod protects a building is by being higher than any other part of the building it maintains a cone of uncharged air over the building. This uncharged air cannot become charged when a thunderstorm passes over as the charges are continuously discharged through the ground wire from the rod to ground. As no charges can be built up within this cone, lightning cannot enter this cone to strike the building. The second way a lightning rod protects a building is that any lightning directly above the building can only strike the tip of the lightning rod itself. The current will then be forced to follow the ground wire from the rod to ground, bypassing the building. However as this current can be in the megaampere range it is necessary to have the complete lightning rod system inspected after any such strike to be sure that parts have not been melted and that the lightning rod is still protecting the building!
Do odds of lightning strike increase after initial strike?
The odds of a lightning strike do not necessarily increase after an initial strike. Each lightning strike is an independent event, and the odds of the next strike are determined by various factors such as weather conditions and geographical location. While lightning can be more likely during certain weather patterns, there is no direct correlation between subsequent strikes based on a previous one.
Why do people survive after being hit by lightning?
The injury caused by a lightning strike depends greatly on the amount of current that enters the body. A lightning strike is very high voltage, but it can be distributed over a very large area (as shown by the dendritic branching patterns). Unless one is hit directly by a return stroke, the current can be carried through the liquids of the skin to the ground without causing fatal damage. A lightning strike on a sports field can injure as many as a dozen players, and yet kill no one. Some people have been hit more than once by lightning, suffering skin burns (especially on the head, back, or heels) and occasionally nerve damage.
Why do some people survive after being hit by lightning?
The injury caused by a lightning strike depends greatly on the amount of current that enters the body. A lightning strike is very high voltage, but it can be distributed over a very large area (as shown by the dendritic branching patterns). Unless one is hit directly by a return stroke, the current can be carried through the liquids of the skin to the ground without causing fatal damage. A lightning strike on a sports field can injure as many as a dozen players, and yet kill no one. Some people have been hit more than once by lightning, suffering skin burns (especially on the head, back, or heels) and occasionally nerve damage.
What type of lighting protection system is shown in the image?
The image shows a lightning rod or a Franklin rod, which is a type of lightning protection system designed to protect buildings and structures from being damaged by lightning strikes. The rod is connected to a ground system to safely dissipate the electrical charge in case of a lightning strike.
