![]() All trailing edges of wings, flaps, ailerons, elevator, and the rudder of the airplane are outfitted with static dischargers to ensure that the static electricity, generated during the flight as a consequence of friction between the airplane and the air, is discharged into the air. ![]() To do so all of the metal parts in the airplane including the engine are connected to each other to make an electrically-integral structure. We should not forget about the necessity to connect all separate components of an airplane together by bonding strips to protect them from static electricity. Static dischargers on the wing of a Boeing 738-800 are designed to control corona discharge into the atmosphere and providing reliable work of aircraft onboard navigation and communication equipment Other Examples This is incorrect - the defibrillator cannot “restart” a heart. The movies often make a mistake of showing the revival of a patient with no heartbeat (as seen by the straight line on the monitor) by using the defibrillator. The scene depicting the “return to life” of a patient with acute heart failure by using a defibrillator is a classic for movies of a certain genre. It is important to note that this device does not restart the heart but stops the incorrect rhythm and is used along with other treatments. This is done by a device called the defibrillator. The heart can be restored to normal functioning by subjecting it to a small electrostatic charge. Static Electricity in Medicineĭespite numerous problems that static electricity causes, it helps people with life-threatening ventricular fibrillation, which is a condition in which there are chaotic contractions of the heart muscle. When the grounding equipment does not operate as expected, it can cause serious accidents and even catastrophes with numerous casualties, from fires to explosions of entire factories. ![]() The engineers have to use grounding straps when fixing these circuit boards. Lightning can damage circuit boards located in the vicinity of the strike - usually, it is their input stages that are damaged in this event. Electrical engineers have to work around it. Static electricity is both our friend and our foe. Even though the cloud as a whole is neutrally charged, the bottom of it is charged negatively, and the top - positively. The weight difference of the particles causes the movement of particles within the cloud, with the heavier ones gathering at the bottom and the lighter smaller ones - at the top of the cloud. Bigger particles become negatively charged, while the smaller ones get a positive charge. These ice particles collide as they move. Ice particles in the cloud are formed from the water drops, as they are moved from the lower and warmer layers of the atmosphere up to the colder ones. Generally speaking, the mechanism by which the storm cloud gathers an electric charge is very similar to the process of electrification of a hairbrush - charging in both cases happens due to friction. Unfortunately, the study of static electricity had victims: while conducting experiments Georg Wilhelm Richmann, a Russian scientist, was killed by lightning, the most deadly phenomenon caused by static electricity. Instead, it meant amber - a material that electrifies really well when rubbed (ancient Greek ἤλεκτρον - amber). Even the word “electron” came to us from Ancient Greek, although it did not have the current meaning back then. People have been studying static electricity since ancient times. This is not surprising: at each instant in time there are up to 2000 thunderstorms that generate up to 50 bolts of lightning per second. Despite this, static electricity continues to disrupt our daily life by creating interference with radio signals. We have tamed static electricity by using lightning rods for our buildings and grounding devices to ensure the safety of fuel trucks. ![]() People have been fascinated with electricity for many centuries, and we often do not realize that the scientists, who studied static electricity and came to many useful conclusions about its properties, saved us from the horrors of fires and explosions. An Air Canada aircraft is grounded while being refueled
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