Reason-for-banana-slips香蕉皮滑的原因演讲

Reasonforbananaslipsyoumayhavelaughedatitinacartoon:Apersoniswalkingalongwhensuddenlyheorsheslipsandfallsonabananapeel.Butarebananasreallyslipperyinreallife?Scientistshavebeentryingtofindout.slips[slips]v.滑〔slip的第三人称单数〕，滑脱，下降，〔健康状况等〕变差同根词：slipperyadj.滑溜的狡猾的不可靠的Backin2012,“tribologists”(摩擦学家)inJapan–KiyoshiMabuchiandothersatKitasatoUniversity〔北里大学〕inMinato–decidedtomeasurehowslipperyabananapeelis,accordingtoKarlKruszelnicki’sbookDrKarl’sShortBack&Science.Tribologylooksatfriction,aswellasmakingitlessstrongthroughlubrication,insurfacesthatmoveagainsteachother.uItwasstartedinthemid-1960sbyphysicistDavidTaborandlubricationexpertPeterJost,buthumanshavebeenusingitsideasforalongtime–forexample,whentheancientEgyptiansusedlubricanttomovegiantstonesandbuildthepyramids.Inthelate1400s,LeonardodaVincicameupwiththefirstlawsoffriction.tribologist

n.摩擦学家同根词：friction[ˈfrɪkʃən] n.摩擦二十世纪六十年代中期lubrication[ˌlubrɪˈkeʃən]润滑剂pyramid[ˈpɪrəmɪd]n.金字塔;角锥状物vt.使…成塔尖形;使…节节建立;使…上涨vi.成金字塔状;渐增;连续投机Oneeasywaytomeasurefrictionistheso-called〔所谓的〕“frictionalcoefficient(系数)”.Thinkofablock〔阻碍〕ofleather(皮革),weighing1kg,sittingonwood.Tomoveit,youhavetopushitwithaweightof350g.Thefrictionalcoefficientofleather-on-woodistherefore〔因此〕350dividedby1,000,whichis0.35.Thelowestfrictioncanbefoundinice-on-iceandmetal-on-ice(around0.02)andthecartilage(软骨)inyourbody’sjoints(关节)(0.01).TheJapanesetribologistsmeasuredthefrictionalcoefficientofabananapeelonalinoleum(油毡)surfaceas0.07.Thiswasamazinglylow–betterthanmetal-on-metalwithoil.Usingamicroscope〔显微镜〕,theresearchersfoundthattherearelittlecontainers〔容器〕calledfolliclesontheinnerbananaskin–thesurfacethattouchesthefruit.vWhenyourfootweighsdownonthesefollicles〔毛囊〕,theyreleasepolysaccharides〔多糖〕(typesofcarbohydrates(碳水化合物))andprotein〔蛋白质的〕.Thesethenmixtogetherintoagel〔凝胶〕.Thankstothebumps〔n.隆起，凸起〕onthebananaskin,thisgel(胶体)comesbetweenthebananaandthefloor,leadingtoverylowfriction.Thetribologistsalsomeasuredthefrictionalcoefficientsofafewotherfruits.Applepeelwasnotsoslipperyat0.1,whiletangerine(柑橘)andcitron(similartoalemon)eachcameinaround0.2.Fortheirinterestingyetsillyresearch,theJapanesetribologistswonthelight-heartedIgNobelPrizeinPhysicsin2014.2014年搞笑诺贝尔奖的物理学奖2014年

物理奖：日本研究学者获得物理学奖，他的研究课题是：当人踩到地上的香蕉皮的时候，鞋底和香蕉皮之间的摩擦力。

神经学奖：获奖者大局部为华裔，研究课题为“当人们在烤面包里看到耶稣基督的脸的时候，大脑内会有何种反响”。

心理学奖：晚睡的人更加自我欣赏。

公共卫生奖：养猫是否对人心理有影响。

生物学：狗的排便时使自己与地球的磁场相近。

艺术奖：当人们观看拙劣的画作时，用激光照射他

们的手部测试人们所感受到痛感程度。

经济学奖：由意大利政府国家统计委员会获奖，理

由是“通过向自愿交易的色情业、