Последний Адмирал
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Admiral Zaarin
Причём они не разносят их в клочки, а каким-то образом вызывают взрыв внутри дерева
Выстрел передаёт свою тепловую энергию, влага испаряется и ствол разлетается в клочки.
It is difficult to assess the power of these blaster bolts accurately, because of uncertainties in the size of the trees and the properties of the wood in question. It is difficult to determine the properties of one particular type of wood due to variations in each sample. The wood on a moon in another galaxy may exhibit much different properties altogether.
However, all wood contains a large percentage of moisture. Living trees contain much more moisture than wood that has been cut and dried for some time. The water content sometimes even exceeds the amount of solid material by mass. The surface of Endor (at least in the area the battle took place) must have had a good supply of rain and moisture for plant life to grow, as exhibited in the thick undergrowth. The trees probably had around 50-70% water content.
Michael Wong theorizes that the water inside the tree was vaporised (turning the water into steam). The water vapor caused enough stress from expansion to exceed the tensile strength of the wood, causing the center portion to "blow out" through the outer shell of the tree. He refers to this as "hoop stress" (note from MW: this is exactly what happens when lightning strikes a tree; the water in the tree is almost instantly vapourized, and the resulting expansion stress splits the tree open. However, lightning tends to cause a trunk to split in half because it vapourizes water throughout its entire length, while a blaster bolt vapourizes the water only in a small section where it strikes the tree, hence the localized rupture).
The size of the trees is difficult to determine. However, if we assume (subjective) that the larger tree's trunk was 15 cm (6 inches) in diameter, the affected section was 1/2 meter in height, and average tensile strength of wood, approximately 2 megajoules of energy were injected into the tree. The bolt's duration was approximately 1/15 second, so the bolt had approximately 30 megawatts of firepower. This is comparable to a pound of TNT, a small artillery shell, or 506 hunting rifles (30.06 with 180 grain bullet) fired simultaneously.
(Brian Young's Turbolaser Commentaries)
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