首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
公务员
Andrew Ritchie, inventor of the Brompton folding bicycle, once said that the perfect portable bike would be like a magic carpet
Andrew Ritchie, inventor of the Brompton folding bicycle, once said that the perfect portable bike would be like a magic carpet
admin
2013-02-17
95
问题
Andrew Ritchie, inventor of the Brompton folding bicycle, once said that the perfect portable bike would be like a magic carpet - You could fold it up and put it into your pocket or handbag . Then he paused: But you’ll always be limited by the size of the wheels. And so far no one has invented a folding wheel.
It was a rare - indeed unique - occasion when I was able to put Ritchie right. A 19th -century inventor, William Henry James Grout, did in fact design a folding wheel. His bike, predictably named the Grout Portable, had a frame that split into two and a larger wheel that could be separated into four pieces. All the bits fitted into Grout’s Wonderful Bag, a leather case.
Grout’s aim: to solve the problems of carrying a bike on a train. Now doesn’t that sound familiar? Grout intended to find a way of making a bike small enough for train travel: his bike was a huge beast. And importantly, the design of early bicycles gave him an advantage: in Grout’s day, tyres were solid, which made the business of splitting a wheel into four separate parts relatively simple. You couldn’t do the same with a wheel fitted with a one - piece inflated (充气的) tyre.
So, in a 21st - century context, is the idea of the folding wheel dead?It is not. A British design engineer, Duncan Fitzsimons, has developed a wheel that can be squashed into something like a slender ellipse (椭圆). Throughout, the tyre remains inflated.
Will the young Fitzsimons’s folding wheel make it into production? I haven’t the foggiest idea. But his inventiveness shows two things. First, people have been saying for more than a century that bike design has reached its limit, except for gradual advances. It’s as silly a concept now as it was 100 years ago: there’s plenty still to go for. Second, it is in the field of folding bikes that we are seeing the most interesting inventions. You can buy a folding bike for less than £1, 000 that can be knocked down so small that it can be carried on a plane - minus wheels, of course—as hand baggage.
Folding wheels would make all manner of things possible. Have we yet got the magic carpet of Andrew Ritchie’s imagination? No. But it’s progress.
We can learn from the text that the wheels of the Grout Portable_____.
选项
A、were difficult to separate
B、could be split into 6 pieces
C、were fitted with solid tyres
D、were hard to carry on a train
答案
C
解析
细节推理题。根据第三段的倒数第二句“And importantly,the design of early bicycles gave him an advantage:in Grout’s day,tyres were solid,which made the business of splitting a wheel into four separate parts relatively simple”可知选C。
转载请注明原文地址:https://kaotiyun.com/show/VX6q777K
本试题收录于:
中学英语题库教师公开招聘分类
0
中学英语
教师公开招聘
相关试题推荐
FilmDescriptionsBacktotheFutureWiththehelpofalocalinventor’stimemachine,Martytravelsbacktothe1950s.
Oneafternoon,mysonAdamaskedme,"Areallpeoplethesameeveniftheyaredifferentincolor?"Ithoughtforaminute,
Thelargestearthquake(magnitude里氏9.5)ofthe20thcenturyhappenedonMay22,1960offthecoastofSouthCentralChile.
Thelargestearthquake(magnitude里氏9.5)ofthe20thcenturyhappenedonMay22,1960offthecoastofSouthCentralChile.
Doctorssaythatexerciseisimportantforhealth,butit______beregularexercise.
Imustcongratulateyou______theexcellentdesignofthenewbridge.
Iusedtoliveselfishly,Ishouldadmit.Butonemomentchangedme.Iwasonmylunchbreakandhad【C1】______theofficeto
Iusedtoliveselfishly,Ishouldadmit.Butonemomentchangedme.Iwasonmylunchbreakandhad【C1】______theofficeto
WhenfamiliesgatherforChristmasdinner,somewillsticktoformaltraditionsdatingbacktograndma’sgeneration.Theirtables
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolved(旋转)aroundtheearth.An【C1】______7%
随机试题
Australianchildrenarevisitingsocialmediawebsitesatanincreasinglyyoungerage,anewsurveysuggests,withoneinfive"
(2015年第76题)下列不属于类风湿关节炎诊断标准的是
患者,女,31岁。自觉疲倦,乏力,食欲缺乏近2年。平时月经量多,生育1胎,小孩1岁半,自己哺乳喂养。无其他疾病史。体检:发现皮肤、唇黏膜、甲床苍白,心率100/min。红细胞:3.15×1012/L,血红蛋白:75g/L,MCV69fl网织红细胞1.8%,
在Word编辑状态下,可以通过键盘上的Backspace键将已选中的文本块删除。()
申请登记期间,登记事项发生重大变化的,私募基金管理人应当及时告知()并变更申请登记内容。
首次公开发行公司的()必须出席公司推介活动。
Inatypicalday,weencounterdozens—ifnotdozensupondozens—ofmomentswhenwearedelayed.frustratedorconfusedbycomplexi
苏格拉底认为教育的培养目标是()
Sinceyourcarneeds(clean)______,you’dbetterdoitrightnow.
A、Scotlandhasatraditionofheavydrinking.B、Drinkingisawayofexpressinghospitality.C、MoreScottishpeoplecanaffordt
最新回复
(
0
)