PTT影音娛樂區 / DiscoveryNGC (Discovery/國家地理/旅遊生活頻道)

[流言] [雷] 「流感流言大檢驗」之簡介及關鍵字

看板DiscoveryNGC (Discovery/國家地理/旅遊生活頻道)作者bikwang (bikwang)時間15年前 (2010/10/19 06:29)推噓1(1推 0噓 0→)

留言1則, 1人參與討論串1/1

參考網址： List of MythBusters episodes (維基百科) http://en.wikipedia.org/wiki/List_of_MythBusters_episodes MythBusters 2010 season (維基百科) http://en.wikipedia.org/wiki/MythBusters_(2010_season) ---------------------------------- 流言終結者：流感流言大檢驗 (Flu Fiction) 第147集單元：　感冒流言大檢驗 (Fever Pitch)、斷頭龍捲風 (Tornado Decapitation) 本集的流言終結者，亞當和傑米要驗證兩則普通感冒流言。首先，他們要測試極限，看打噴嚏能否達到100哩時速，射程超過30呎。接著他們要驗證流鼻涕是否會傳染給別人？至於凱莉、格蘭和托瑞則是拿脖子開鍘，看龍捲風能否把玻璃變成血滴子？本集要驗證有關感冒及龍捲風的流言：噴嚏的時速能否達到160公里，射程達9公尺遠？感冒的鼻涕能否迅速並廣泛的感染其它人？龍捲風的風力能否帶動窗戶玻璃砍掉人頭？關鍵字：普通感冒(common cold)、噴嚏(sneeze)、飛沬(droplets)、鼻涕(nasal secretions)、時速和距離(speed & distance)；龍捲風(tornado)、窗戶玻璃(window glass)、斷頭(decapitation)；噴嚏靶場(sneeze shooting range)、高速攝影機(high-speed camera)、鼻煙(tabacco snuff)、刺激鼻腔黏膜(irritate the mucous membrane)、櫻桃口味的飲料粉(cherry drink powder)、白紙(white paper)、食物染料(food coloring)、鼻滴管(nasal dropper)、螢光染料(fluorescent dye)、每小時60毫升的黏液(60 milliliters of mucus per hour)、紫外線燈(ultraviolet light or black light)、做模型 (model-building work)、派對(party)、交叉感染、測試對象(Test subject)、潔癖 (germaphobe)、不知情的人(unsuspecting ones)、刻意避免身體接觸(avoid physical contact consciously)、避免間接接觸(avoid indirect contact)；血滴子〔斷頭台〕(guillotine)、人頸的磁振造影(MRI of human neck)、豬脊椎(pig spine)、豬皮及肌肉(skin and muscle)、長頸(elongated neck)、假人頭(human-like head)、厚3.2mm的玻璃板(1/8 inch thick glass panes)、符合龍捲風地區的住宅建築規章標準(conformed to building codes for houses in tornado-prone areas)、用手拋擲(throwing by hand)、速度和準度(speed and accuracy)、玻璃碎裂、卡車(pickup truck)、交通錐(travel cone)、鋼架(steel structure)、保麗龍磚夾具(styrofoam blocks holder)、用較重且低速的玻璃模擬輕而高速的玻璃(heavy glass sheet by low speed equivalent of light pane by high speed)、五級龍捲風(F5 tornado)、二級龍捲風(F2 tornado)、玻璃沒有完全脫離、額外的動能(extra kinetic energy)、有疑問就做個機器人(If in doubt, ? robot)、腳輪(castor)、輪子裝在支軸(tires on axle)、電動馬達(Electric motor)；傳播與污染(spread & contaminated)、改變行為(behavior change)；動能(kinetic energy)； ---------------------------------------------------------------------------- Fever Pitch Adam and Jamie explore three myths associated with the common cold. A sneeze can leave a person’s nose/mouth at 100 mph (160 km/h). "Busted" Adam and Jamie used snuff to irritate their mucous membranes and force themselves to sneeze. Droplets from Adam’s and Jamie’s sneezes traveled at 35 mph (56 km/h) and 39 mph (63 km/h), respectively. Droplets from a sneeze can travel up to 30 ft (9.1 m). "Busted" To get a visual indication of distance, Adam mixed cherry drink powder into the snuff and sneezed over a 30-foot-long strip of white paper. When this method failed to show any marks, he and Jamie tried drinking a small amount of food coloring just before sneezing. This idea worked, giving a maximum distance of 17 ft (5.2 m) for Adam and 13 ft (4.0 m) for Jamie. Nasal secretions from a person with a cold can spread so far and so quickly that anyone in the vicinity can become contaminated. "Confirmed" Adam and Jamie consulted with an otolaryngologist and learned that a person with a cold may secrete up to 60 milliliters of mucus per hour. Jamie built a rig from a syringe and tubing to match that drip rate with fluorescent dye, and Adam wore it by his nose as he did model-building work. After one hour, he and everything he had touched were stained with the dye. They then set up a party for Adam to host, with three “germaphobe” guests (Kari, Grant, and Tory, who were briefed to try to avoid contact with Adam) and three unsuspecting ones. Thirty minutes later, Adam, the whole table, and every guest except Kari – who admitted that she actually was a germaphobe – were heavily contaminated. In a second experiment in which Adam consciously did his best to avoid physical contact, all six guests came up clean. Adam and Jamie declared the myth confirmed at this point, commenting that a healthy person would find it very difficult to avoid being contaminated by a sick one who did not attempt to keep from spreading his/her germs. Tornado Decapitation Tornado-force winds can propel window glass with enough speed to decapitate a person. "Confirmed" Kari and Tory obtained a pig spine with skin and muscle, trimmed it down to resemble an elongated neck, and attached a dummy head. The Build Team then obtained several 1/8 in (3.2 mm) thick glass panes that conformed to building codes for houses in tornado-prone areas, and began throwing them at "Neck Man" by hand. They had difficulty reaching a suitable combination of speed and accuracy; none of their throws inflicted more than a minor wound. Tory then built a frame to attach to a pickup truck, with a heavy 14.3 lb (6.5 kg) glass sheet loosely mounted to hit Neck Man edge-on but break loose just before impact. The first attempt, at 80 mph (129 km/h) – the equivalent kinetic energy of a light pane traveling 300 mph (483 km/h) in an F5 tornado – sliced the head off. A second test at 40 mph (64 km/h) (150 mph (241 km/h) for a light pane in a less powerful F2 tornado) also cut completely through the neck. However, the glass did not break out of its holder, indicating that the momentum of the truck may have affected the result. Back at the workshop, the team built a rig to throw 1/4 in (6.4 mm) thick panes (twice as heavy as the original ones) at 70 mph (113 km/h). After several tries, they were able to score a hit that completely and cleanly severed the head, leading them to declare the myth confirmed. ------------------------------------------------------------------------- -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.233.68.251 ※ 編輯: bikwang 來自: 118.233.68.251 (10/19 06:30)