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
adiabatic compression ratio
aerendocardia
aerial terminal
Agios Kosmas, Akra
antique lace
atmospheric-compartment drier
atrophia musculorum progressiva neurotica
bastard
bearing-shim
biased critical region
boskets
bow chain saw
Buloh Besar, Sungai
caad
carnaud
Cephalaria
chary speed
chromium-tungstenvanadium steel
coarse waste
coated chipping
common names
deactivated
declarative sentence
Derepan
dishonorest
dissipative part
double daggers
dryness pathogen
duo directional current
environmental geomorphology
european on-board diagnosis
film acoustics
first-order theory
fishing tap
fluviatile lake
galaxy
gareri
gay icons
give ... name to
green's constitutive equation
gun shy
hebosteotomy
high-contrast edge
hillebrand
hog barge
hydraulic-control valve
hypnotoid
in full force
Ingmar
isotachophoresi
Jambin
Joule-Thomson cooling
junior lightweights
keep someone in
knezek
Lessac
letter bombs
lifting trunnion
logical combination
loop, output
make yourselves known to
Maurice Ewing Bank
mont-de-piete
one-sixths
Otue
oxalurate
parabolic quadric hypersurface
paradentoma
paradichlorobenzol
Patterson Heights
peristaltic unrest
pinocle
psychodramas
pwt,pwt.
rain-factor
read write control
reciprocating internal combustion engine
recursing
Restoration drama
Robeson Channel
school tuna
self-exciting condition
slotted cylinder
sodium biurate
solid state magnetron
spiracular button
spotties
squalidest
swaybar
table-footballs
tickweed
tribute-payings
twilightish
two-dimensional spatial filter
uart receiver-transmitter section
unriveted
ventricular septal rupture
weak boundary condition
x-ray detection apparatus
yeoman's service
zips through