参考网址： MythBusters 2010 season (维基百科) http://en.wikipedia.org/wiki/MythBusters_(2010_season) ---------------------------------- 流言终结者：再解狗迷思 (Hair of the Dog) 第149集 单元：　挑战寻血猎犬２ (Beat the Bloodhound, Part 2)、 挑战嗅探犬 (Beat the Sniffer Dog) 在本集的流言终结者，人类与其最忠实的朋友将展开第二次对决，亚当和杰米挑战上次让 他们惨败的寻血猎犬；在终极嗅觉大对决中我们要看谁先败退？谁又能称霸？同时，凯莉 、托瑞和格兰也要验证传说中的招数，看能否骗过嗅探犬，包括扰乱注意力，以及让人退 避三舍的东西。 本集要再次验证有关狗的流言：能否用超臭的红鲱鱼、市售无臭装或涉越深水来击败寻血 猎犬？寻血猎犬能否指认嫌犯？能否用咖啡等有强烈气味的物品、音波驱狗器及恶心的东 西骗过嗅探犬？ 关键字： 寻血猎犬(Bloodhound)、刺鼻臭味：红鲱鱼(red herring)、消除气味：市售无臭装 (commercial no-scent suit)、涉越深水(deep water run)、列队指认(line-up)、流言 终结者之无臭无味装(Mythbuster's no scent no body odor suit)； 嗅探犬(sniffer dog)、违禁品(contraband)、更强的气味(much stronger scent)、音波 驱狗器(ultrasonic dog repellent device)、欺骗领犬员(? dog handlers)； 狗和训狗师(dog & trainer)、寻找特定嫌犯(find a particular suspect)、没洗过的衬 衫(unwashed shirt)、体味消除区(body odor ?)、冲洗身体(body wash)、特制湿巾擦洗 (? scrubbed body)、防护装(protective suit)、丙酮擦拭(wipe down with acetone)、 无臭狩猎喷雾(no scent hunting spray)、防毒面具(gas mask)、滤心(air filter)、过 滤吐气(remove odors from his breath)、喷洒洗澡水(sprayed wash water)、背包式喷 洒器(backpack sprayers)； 大狗有利(bigger dog is better)、扰乱注意力(distractions)、塑胶罐(plastic container)、咖啡(coffee)、花生酱(peanut butter)、香水(perfume)、漂白水(bleach) 、香茅油(citronella)、装满道具的仓库(warehouse filled with props)、项圈摄影机 (collar camera?)、凯莉的爱犬(Kari's two puppies)、室外演唱会场景 (outdoor-concert scenario)、超吵汽车音响(car with stereo blaring)、快餐车 (fast food truck)、脏尿布(dirty diapers)、假底层(false bottom)、装满行李的房间 (warehouse full of luggage)、误判信号(miss dog's sign)； 追踪犬(tracking dogs)：人类气味(human scent)、缉毒犬(detection dog or detecting dog)：特定物质(specific substances)、气味物品(scent particles)； ------ Beat the Bloodhound, Part 2 A revisit of the “Fool the Bloodhound” myth from 2007. Adam and Jamie investigated new suggestions for evading detection by a scent hound, using the same dog (Morgan) and handler from that earlier episode. Given a five-minute head start, Jamie fled while using… Myth statement Status Notes …a literal red herring. "Busted" Jamie spread canned herring across his path in attempt to throw Morgan off the scent. The dog stopped to eat the fish and passed the point where Jamie turned off the main trail, but later doubled back and found him. …a suit treated with cleaning products intended to neutralize odors. "Busted" Despite Jamie’s suit and choice of hiding places to shelter himself from the breeze, Morgan found him without difficulty. …an escape route that crosses a river (rather than a small stream as in 2007). "Busted" Morgan was able to pick up Jamie’s scent in the water and find him. Adam and Jamie concluded that the size of the body of water had no effect on a bloodhound’s ability to track fugitives. …a complete full-body cleaning and equipment to mask his scent. "Busted" Jamie scrubbed himself down and rinsed with wipes meant for use by hunters to disguise their scent, then put on a protective suit with a gas mask and air filter to remove odors from his breath. He sprayed a false scent trail using his own wash water, threw the sprayer into the tall grass, and hid. The trail distracted Morgan for a short time, but he soon found the sprayer and tracked Jamie to his hiding place. Adam and Jamie also explored a bloodhound’s ability to single out a suspect from a group. Myth statement Status Notes If several suspects flee at once, the dog can find a particular one after being given his/her scent. "Plausible" Five men each provided one unwashed shirt, then fled together for a short distance before splitting up. Morgan was given one of the five shirts for a scent, then began to track; he initially had the correct trail, but soon became confused and could not find it again. In a second test, he did find the correct suspect, leading Adam and Jamie to conclude that picking a single suspect out of a lineup in this manner was a plausible but unreliable method. However, it was noted that Morgan was not trained to track multiple targets. Beat the Sniffer Dog Four contraband-detecting dogs – Buck, Rex, Gypsy, Max – and their handlers took part in a series of tests arranged by the Build Team. They investigated the possibility of fooling the dogs by… …masking the scent of the contraband with a much stronger one. "Busted" The contraband was packed into a plastic container with one of five strong scent materials (coffee, peanut butter, citronella, perfume, and bleach) and hidden in a large warehouse filled with props. Rex was able to find the package every time, with only the citronella slowing him down to any degree. …using an ultrasonic dog repellent device. "Busted" Kari tested out such a device on her own two puppies to verify its effectiveness. The Build Team then set up a typical outdoor-concert scenario, with over 200 people gathered in a parking lot and possible distractions for the dog: a car with stereo blaring and a fast food truck. One person was given the contraband and the repellent device to trigger whenever Gypsy came too close, but she was able to ignore it and find her target. …distracting the dog with another scent. "Busted" The concert scenario was reset and a female dog in heat was placed near the person with the contraband, in an attempt to distract the male sniffing dog with pheromones. Max did become confused, whereupon his handler removed both him and the female from the area; after a few minutes, Max was brought back in and successfully found the contraband. The handler noted that it is standard procedure to remove all other dogs from the area being searched to prevent this sort of situation. …packing the contraband with materials intended to cause a false positive and/or repel the handler. "Busted" Tory fitted a false bottom into a suitcase, loaded the contraband into this, then packed that suitcase and several others with the chosen material. The cases were hidden in a large warehouse full of luggage. Tests with strongly aromatic cheese and sausage, and with dirty diapers from Kari’s baby, failed to deter Buck from picking the correct bag or his handler from searching it to find the contraband. The handler noted that both dogs and their handlers are thoroughly trained in seeing through attempts to deceive them. ---------------------------------------------------------------------------------------------------- --

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