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
9-Fluorenamine
air fog signal
anaerobic bacillus
analogue modulation system
article assembly
automatic closer
B synnematin
back o' Bourke
bottom edged
bred-in-the-bone
bubuckled
carbon dioxide greenhouse effect
Caspar
centre of location
chain wrench
closed coat
coalescence model
cofibre
cold-storage door
colour pattern
concearn
contextualized-consequential model
creese
cyperus nutans subprolixus
daisywheel printers
devils den
dexmedetomidine
diving psychology
divisional profit
dolmas
Doppler-free spectroscopy
elongatoolithid
elopiform
fedeles
feerite core baluns
freedb
friction-producing powder
frieseite
genic
globalview
gonidia
Grimari
groupuscule
hangiri
hard tooth tissues
He works best who knows his trade.
his-her
in the vein for
irrigation and drainage
itchiku
Jumu'ah
Keota
Khvorostyanskiy Rayon
knowledge information processing
leave loose of something
line and tone combination
lose one's spirits
lycocerus nanshanensis
macroparasites
macroscopic symmetry
Maiasaura
Mohomet
motion with variable velocity
musculophrenic vein
mussel-shell
nickel cadmium cell
noise record
nucleus nervi vagi
on barter basis
Paraoxymeta-methoxyallylbenzene
pattern formalism
physical cleaning
planoconvex spotlight
positive ion yield
power tube (valve)
prefrontally
protomers
quinquelocular
re-heard
Riga-Fede disease
risk rating
rock masses dynamics
roulading
RPF
sediment transport concentration
step function transient response
stork fire
surface silo
suspended animations
talcose granite
tatnall
temperable
time domain analysis
toejo (nagwon)
travoltas
trunkal asynergy
tuna casserole
V-prism refractometer
viminalis
water content in capillary zone
yearly budget
zona columnaris recti