时间:2019-01-08 作者:英语课 分类:Scientific American(九)月


英语课

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.


 


It’s not often that an incoming college freshman 1 is already starting his own multimillion dollar business. But that’s what’s happening to Ben Gulak. He’s a 19-year-old Canadian who’s just starting at M.I.T. Gulak’s was inspired by the overwhelming smog he saw on a trip to China two years ago. He thought there should be something better than all the polluting scooters. He spent two years tinkering and came up with a contraption he calls the Uno. It’s an electric vehicle that looks like a cross between a motorcycle and a unicycle.


 


There are actually two wheels, but they’re side by side, not front and back. And the controls consist of a single on-off switch. You balance by simply sitting upright. You accelerate by leaning forward. Leaning backward activates 2 the brakes. And you turn by simply leaning to the left or right. The computer control system is similar to that of the sidewalk Segway, but this device is designed like a scooter to be ridden on the street. Gulak has already won a number of prizes and gotten funding for his new Cambridge-based business. And he’s planning to balance a double-major in mechanical engineering and business at M.I.T. Which should help him get people to balance on Unos someday soon.


 


Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.



n.大学一年级学生(可兼指男女)
  • Jack decided to live in during his freshman year at college.杰克决定大一时住校。
  • He is a freshman in the show business.他在演艺界是一名新手。
使活动,起动,触发( activate的第三人称单数 )
  • Activates the window and displays it in its current size and position. 激活窗口,保持当前的大小及位置不变。
  • Pulling out the alarm switch activates alarm and pushing it deactivates it. 闹钟的开和关是通过拔出和按入闹铃开关实现的。
标签: SSS contraption
学英语单词
angela lansbury
aphalerite
arteriae facialis
bayart
be it little or much
biomedical synthetic fibre
bland diet
burnt lime
Cameron, Julia Margaret
canc.
careful
cast cylinder
CD Video
Citheroniinae
condition of validity
consulting psychology
crumb-structure
cuts back
cystic mass
diethylinitrosamine
differential chemical reactor
downwarping
ecological flow
extension housing
fibroma of vagina
fluosolids system
fumadoes
generalized stress
glanmore
graticulate
grimhild
heat energies
holiday village
hydroclastic rock
hyperplanes
in cases
in flames
in line plunger motor
inquilinous
interfrication
irreversibility line
ismets
kapoors
key interlocking
Khenifra
Khuzhir
Krithe
lambdoid suture
Lanaye
lichen atrophicus
longitudinal bars (branchial basket)
lunarscape
main axle
Mcgrath
microcomputer laboratory
Minsen
Morgan, Cayo
multicolor Nanking brocade
multiload
myelomatosis multiplex
nadir point recording device
ostryopses
overall satisfaction
parabolic current
Paraphlomis albiflora
PAS (protocol analysis system)
postclosure
posterior palatine canal
prodigalness
propeller thrust coefficient
pulling this off
pulse edge sense circuit
re-setting
reliability theory
reserves/production ratio
Russophobia
sateen weave
sause
schweinfurth
scobles
second opinion documentation received
secondas
sell on
shoe satin
situate
special subdivision
spermatacrasia
spheroidising
staff-and-ticket system
subcapsular nephrectomy
supermaxi
telegraph service
top-heavily
towrope horse-power
transverse groove
tunneled
under-clerk
versatile automatic dataexchange
volume of bubble
weighting cotton fabric
working deck
yo-yo list