参考网址： List of MythBusters episodes (维基百科) http://en.wikipedia.org/wiki/List_of_MythBusters_episodes MythBusters 2010 season (维基百科) http://en.wikipedia.org/wiki/MythBusters_(2010_season) ---------------------------------- 流言终结者：追风部队特集 (Storm Chasing Myths) 第150集 本集狂风扑面的流言终结者，为你带来龙卷风特集，亚当和杰米搭上追风部队的便车。首 先，神奇四人组要制造巨无霸风暴，为了确认追风部队的战车面对五级龙卷风是否真能屹 立不摇。接着流言终结者重振旗鼓做发明：真能打造单人龙卷风护罩吗？或者这只是空话 ？ 本集要验证有关龙卷风的流言：追风部队的车辆能否承受五级龙卷风的威力？可携式龙卷 风护罩在三级龙卷风的威力下仍能保护人的安全？ 关键字： 追风部队战车(Storm Chasers' vehicle)、TIV2龙卷风拦截车(TIV2 , Tornado Intercept Vehicle)、主宰者(Dominator)；单人龙卷风护具(personal tornado protection device)、防龙卷风(tornado-proof)； TIV2： 卡车底盘(truck chassis)、复合装甲(composite armor)、蒙皮：层层的铝板， 克维拉纤维，铝板，钢板，橡胶，聚碳酸酯，橡胶和铝板(skin : layers of aluminum, Kevlar, aluminum, steel, rubber, polycarbonate, rubber & aluminum) 、车窗：玻璃和聚碳酸酯(window : glass & polycarbonate)、液压板：覆盖车底 (hydraulic panels : ? the ground)、两根一公尺长钉(couple of 40-inch long spikes)； Dominator： 16号防弹钢板车壳、聚碳酸酯车窗(polycarbonate window)、液压器 (hydraulic)、车身降到地面(vehicle drop to the ground)、低底盘(lower chassis)； 波音747货机引擎(jet engines of a Boeing 747)、四万五千磅推力(45,150 pounds thrust)、收集风速资料(wind speed data collection)、三级龙卷风(EF3 tornado)、五 级龙卷风风速400公里(EF5 tornado , wind speed:250mph)、普通汽车(regular car)、 强风灌进车底(blowing beneath vehicle)、定锚点弯折(bent the anchor spike)、车牌 被折弯(twisted license plate holder)、流言终结者的认证(Mythbuster's seal)、防 龙卷风研究载具； 确保不被吹走(keep not blowning away)、挡下飞射碎屑(protect flying bricks)、迅 速适应风向的改变(adapt quickly to changing wind direction)、原型(prototypes)、 碗状装甲(inverted armor bowl)、翼片(wing shape on top)、支点(pivot point)、吹 叶机做成的风洞(wind tunnel made by Leaf blowers)、风标、长钉(spike)、聚乙烯泡 棉(foam polyethylene)、铝板(aluminum plate)、聚乙烯，胶带，铝板和防弹尼龙布 (polyethylene,duct tape, aluminum & ballistic nylonand)、装甲板，帐棚铝柱和耐 磨布料(armor panel,aluminum tent pole & heavy-duty fabric)、底部长钉(? spikes) 、挡碎屑测试(debris test)、木罐(wooden cylinders)、杰米的汽水大炮(Jamie's soda-can launcher)、老兄(Buster)、全尺寸试验、支点脱落损坏(tore apart due to failure of the pivot points between the panels)； 风力和风速(wind forces & speeds)；可携性(portability)、抵挡飞射碎屑(debris proof)、至少能抵挡EF3级龙卷风(ability to withstand EF3 tornado)、下冲流、固定 在地面、减少受风面积； ------------------------------------------------------------------------------- The Storm Chasers’ specially reinforced vehicles can withstand an EF5 tornado with winds up to 250 miles per hour (402 km/h). (They have been exposed to 140–150 mph (225–241 km/h) winds in actual storms.) "Confirmed" At a Michigan airfield used by Kalitta Air, the group used the engines of a Boeing 747 to generate the needed wind forces and speeds, with a vehicle positioned directly behind one engine’s exhaust. The first test was carried out at a distance corresponding to 160 mph (257 km/h) winds (mid-EF3 tornado range); a passenger car had its hood torn off and was pushed back 50 ft (15 m). The Storm Chasers’ vehicles, TIV2 and Dominator, suffered no damage in this trial except for TIV2's door flying open because Sean had forgotten to lock it. Each vehicle’s anchor spikes allowed it to keep its position on the ground. In the second test, the vehicles were placed so as to feel the entire 250 mph (402 km/h) wind. Within seconds, the car lost its hood and was thrown backward 250 ft (76 m). TIV2 held its position, while Dominator slid across the ground but did not tumble due to its low profile that kept the wind from blowing beneath it. The only signs of damage were a bent anchor spike and a twisted license plate holder, respectively. Noting that an occupant in either vehicle would easily have survived, Adam and Jamie declared the myth confirmed and stenciled their seal of approval on each one. It is possible to build a personal tornado protection device. "Confirmed" Three criteria were chosen for testing - portability, degree of protection against flying debris, and ability to withstand up to 135-mph winds (the equivalent of an EF3 tornado). Adam and Jamie worked on separate prototypes: an inverted bowl topped by an airfoil to push it into the ground, and a low-profile tent with an anchored base that could pivot to face changing winds. Jamie’s design performed considerably better than Adam’s and was chosen for full-scale testing. A prototype built from polyethylene, aluminum, ballistic nylon, and duct tape was taken to the Kalitta airfield; it could be folded up and carried in a backpack. For the debris test, Jamie fired wooden cylinders at the shield, using his soda-can launcher from "Cup vs Car". Buster and Adam each took a turn inside the shield, with no ill effects. Adam then stood in the 747's exhaust until he lost his footing, which occurred at 130 mph (209 km/h). This wind speed was used as a minimum that the shield would have to endure without any injury to Jamie inside. It tore apart at 135 mph (217 km/h) due to failure of the attachment points between the panels. After these were redesigned, Jamie was able to hold his ground in 180 mph (290 km/h) winds – the equivalent of an EF4 tornado. ---------- --

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