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
accreting plate boundary
airlings
Al-e
aminoquinoline
AMVER
Anglo-Afghan Wars
arthr-
astatic controller
attached
audit-program
auxiliary frame
Bacillus mirabilis
bog star
branchial musculature
cab signal aspect
camlobe grind
cold-weather pipelining
communication system engineering
connect box
criminal classical school
cumquats
customs bond
cytobiologist
debretts
deep expert system
deffayt
diepoxide
distention
dunfish
eastern flowering dogwoods
Ebstein syndrome
electrical winch
feedthrough terminal
foot lift
foremade
fragger
gas-diode switch
general-plan
glue tone
hexacarbacholine bromide
idle hour
infantile cataract
inorganic crystal chemistry
jetties
jointing rule
left-hand page
library-colleges
location request
loop siding
luminous electric button
machine revise
main agent
Majac mill
malme
mercalia
methylgreen
morpioness
multiple break contact
oil-fired furnace
opened out
orientation information
out-of-order commit
overpot
Pfund hardness tester
phosphoramidone
planktonphagi
platybasia
pontoon causeway or pier
postdrilling
price guarantees
Pseudochaetosphaeronema
pulicene
pure O
reduction in bulk
return-flow-atomizer
reversible controller
rotary drum feeder
rural industrial economics
Saraswati R.
sequential approximation
service department budget
slobodkin
speed droop adjusting slide
staphylococal protein
stylochilamide
suspended sulfate
tekkieh
tondo
townward
transdisciplinarity
True Confessions
tuna fish salad
turn controller
unequal pinnate
univariant phase system
Upper Heyford
vegetoanimal
virtual Ampere
Weichardt's antikenotoxin
white fritillary
Williamson synthesis
xenosiderophores