Do Ed Affect Lightning Dmg

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Jan 10, 2008 A Treatise on Smite Damage I have given some thought as to gear selection for a Smiter and have been searching for a way to mathematically calculate which gear would optimize my 1 pt. I found the math formula and entered it into a spreadsheet which allows to me to quickly calculate the effects of different gear options and skill selection. Damages type does not directly affect the damage you take. 3 cold damage and 3 fire damage are both 3 points of damage. Damage types, by themselves, do not have any additional game effect. Damages types most often come into play with resistance, vulnerability, and immunity, which do affect taken damage. Lightning strike is mainly an injury to a person's nervous system, many times with brain and nerve injury. Serious burns rarely happen due to a lightning strike. People who do not experience a cardiac arrest at the time of the incident might experience lesser symptoms which can clear over a few days. Lightning-induced currents without arcing or sparking. The accidents and incidents noted above have prompted extensive research into the lightning effects on and protection of aircraft fuel systems. Improved tank design, lightning protected filler caps and access doors, active and passive vent flame suppression devices. According to the report, it's not that dimly lit rooms result in eye damage; poorer lighting reduces the effectiveness of the brain's power to gather data. A 2011 Dutch study proved that brighter lighting produced more successful outcomes among learners in mathematics, reading and writing than when students had standard lighting. Lightning damage is one of the five damage types and is one of the three types that count as elemental damage. Landing a critical strike with a skill that deals lightning damage inflicts the shock status ailment. Lightning damage is mitigated by lightning resistance and reduction to lightning damage taken.

Section 5.1.6

By GAM Odam
GOA Consultancy, Barmouth, Gwynedd UK

1. DIRECT EFFECTS

These are caused by current transfer via direct attachment. They will be considered individually.

. When a lightning current pulse whose instantaneous value is i flows through a conductor of resistance R, the heat generated by the whole pulse is RSi2dt joules. The quantity Si2dt is called the action integral of the pulse and is measured in A2s or joules per ohm. Practically the whole of this heat is devoted to raising the temperature, since no significant portion of the heat can flow to the surroundings during the very short duration pulse. Thus the temperature rise is proportional to the resistance of the conductor multiplied by the action integral of the pulse. Parts of the AFS which may carry the lightning current therefore need to be designed with a cross-sectional area large enough to keep the temperature rise well below a critical value such as the ignition point or melting point of the material. The design also needs to account for the fact that rapidly changing current in the lightning pulse tends concentrate at the surface of the conductor (skin effect). The maximum surface temperature reached is greater therefore than it would be if the current was distributed uniformly over the whole cross-section.

1.3 Arc Root (attachment point) Damage.If the AFS skin is of high resistivity such as CFC, several conditions may be present. Because the resistivity is up to 1000 times greater than that of metal, the ohmic heat RSi2dt becomes important; the arc heat VSidt is also higher because the burning voltage is higher due to carbon contamination. Conditions are also different because CFC has properties (for example, electrical and thermal conductivity and coefficient of thermal expansion) which are different for the along-fiber and cross-fiber directions. Arc root damage to CFC usually is manifest in the 'tufting' of the fibers due to vaporization of the resin matrix and delamination due to inter-lamina stress resulting from differential expansion.

1.4 Acoustic Shock Wave. 1.5 Magnetic Pressure and Forces. Because the current density is very high at the arc root, the magnetic pressure there also will be very high, approximately 6000 atmospheres for a current that rises rapidly to 200kA peak. This pressure accelerates the burn through process by its tendency to expel the thermally weakened skin.

1.6 Sparking. The temperatures of both types of spark are high and are potential sources of fire or explosion. The incendivity of a spark depends to a large extent upon its total energy content but also on time over which the energy is deposited. It is difficult to measure the incendivity of sparks, however it is typical and prudent to regard any which occur in a vulnerable region as a hazard.

2. NEAR FIELD (INDIRECT) EFFECTS

Essentially a lightning current pulse flowing through a AFC, or in a nearby flash (100 m ?), injects a voltage into the metallics. The consequent current that flows depends upon the impedance of the circuit. The induced voltage waveforms often are very complex but usually consist of one or more of the following three components:

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When a lightning channel attaches to a body (no matter if that body is attached to or isolated from ground) or passes nearby it. it causes the body to experience an electric field having a high intensity and a rapid rate of change. This is in addition to the high static electric field which may be present under thunderstorm conditions.

High field levels (above some 2 kV) also may give rise to corona discharges at sharp edges or protrusions of the AFS and these produce RF emissions which may constitute an additional possible hazard. Although not a lightning phenomenon, it may be noted that a dielectric surface can accumulate electrostatic charge, which may reach such an intensity that a local discharge occurs; this may puncture a thin dielectric, or if (as is more likely) the discharge is to an adjacent conducting part of the surface, may be the source of RF emissions.

Induced voltages may cause breakdown of insulation in wiring, at connectors and in electrical components, or breakdown of air. This may produce sparking which would constitute a hazard when in the presence of volatiles similar to that mentioned in 1.6, above.

3. FAR FIELD (INDIRECT) EFFECTS

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4. LEADER PHASE EFFECTS

The process of lightning attachment to a AFS involves the formation of high electric field concentration (corona) at the extremities, sharp edges, and protuberances, with the consequent formation of streamers which launch in attempts to connect with the downward leader channel. It is possible that the presence of an additional electric field concentration source caused by the presence of a conducting body in an already high electric field (examples: an airborne vehicle; HVAC on a rooftop structure; a power transformer on a utility pole; ballast on high mast lightning) may trigger a lightning flash that otherwise would not have occurred.
It is seen that the probability of a strike to a particular region of the AFS surface largely is a matter of the local geometry coupled to variable voltages, field conditions, rise times and waveforms. The permutations here are manifold and for the most part negate any prediction of lightning attachment points.

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Conductors may be located behind a dielectric surface, as in radar domes, antenna covers, fiberglass enclosures, and the like. Attachment is not
prevented by this dielectric intervention and shield puncturing or shattering is a result of the lightning penetration.

Note: NLSI is indebted to Dr. G.A.M. Odom, GAO Consultancy, Barmouth, Gwynedd, UK for his original authorship of this descriptive.