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
action tendency
aegospotamoss
affinity extraction
alaninepre
amorphous silicon oxide hydrate
anhydrous acetonitrile
apocrisiarius
aqtocytolysis
automatic food vending machine
backcourts
bale density control handle
ball attachment
be there for someone
bedlamites
bonus account
booster assembly
boron thermopile
camber-kneeled
carapax eretmochelyes
cartilaginiform
circuit, relay
cospers
coupling cross
cukas
cuttong force
cycle fluid
drepung
equivalence of homotopy
fecosterol
Fermi potential
ficosis
fixed propeller
flawy
fly-ball governer
functionally-complete function
gas pressure consolidation
Hampden County
hectoliters
Hispaniola Trough
Hwangje-do
hypings
i.h
inexist
interdependent function
inventory depreciation method
IP faxing
kalabishah (kalabsha)
keep something to yourself
lagging
lateral nerve cord
llyrs
locking bar
lummer fringe
madonie(le madonie)
Markovian value mechanism
mckeever
Meredith, Owen
merguson
missing the bus
multfirequency transmitter
multiplex-automatic error correction
mushy fruit
neutron-deficient nu-cleus
nonempiricist
number theorists
ovarian hormone
pan-Canadian
permalloy strip
Poujadist
pressure feed system
prestresses
processed industrial materials
quick opening gate valve
reducing instalment system
reseasons
robo
rolyn
ruderies
Santorine's cartilages
selectivity characteristic
series tee
sheil
shilohs
shortest carrot
supersisters
swab
swamp soil
technes
temperature units
terminal loop
textes
unconformity barrier
underinsulates
underwriting commission
uranographist
very-long-chain
Videx
vocabulary-independent recognition system
vulgar political economics
websmiths
Yazoo National Wildlife Refuge
yingfen