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
aerugin
amount of an annuity due
arst
automatic gain adjusting amplifier
bank copy
basic link control procedure
behavior integration
bulk cargo carrier
calendar finger
canopy switch
carburizer
cast around
cell shading
chemical study
colenso
confirming article
contra-indicant
converter control
cutoff limiting
dayf
developing hanger
dipsey lead
drive pin punch
dry-plus
dusit
electron-photon shower
EOR gap (end-of-record gap)
estacades
exoctohedron
extraction jack
federal communications commission
file block table
file descriptor
form field constant
giant enlargement
giltwood
greisly
gross load
headlight casing stand
impedance noise
infantas
irs-pcrs
keep your nose out of sth
Kihatu
laser mode control
lassalle
legal regulation
lensed
less-than-carload car
look the picture of
magnetosphere explorer
mechanoid
n't
Neo Thomist
non-erasing stack automaton
nordic theatre and dance (ntd)
Nuclotixene
orbifolds
overall audit assurance
oxyselenides
paracetanol
phips
physical diagnostics
physical link connection
Prelog's rule
prom monitor
quartz crystal oscillator
ramie cotton fabric
ramp angle
rees-ecker fluid
repetition-compulsion principle
residual state of stresses
sandwash
scampant
Schefflera arboricola
screw steel
sealer-crimper
secondary line
septal crest
silk glands
sinneresses
skitching
sweet on
synthetic dyestuff
tacheometric protractor
tissue test
to post a letter
toroid helicoids worm
treses
type vii distribution
ultrasonic crystal
ultravox
understudying
unsizeable
upper ledge
Vendor Financing
vortex interference
warsle
water releasing culvert and pipe
wet bursting strength
wilderments
X-ray microscope