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
absolute uniform convergence
additional allowance
algaline
alternator regulator
angle of valence
antifriction property
autem cacklers
automatic slow down device
AXI
Bizerte
Black Isle (Pen.)
bound upon
bridge of beam gantry
bum-trip
camatopsis rubida
centrodorsal cavity
codonanthes
Colwall
concealed malice
conversion macros
counter quenching circuit
course of inheritance
cryopelagic
Cuignet's method
dalai lama
divergent sequence
duplex bearing
eczema intertriginosum
epicontinental warp
exelent
federal loan agency
ferase
Firmibacteria
frequently-used data
fubby
governor ball
grl
hawkstones
heaviest-handed
hold-back pay
holometabolic
hubbing
ideal profile
Incirrata
infra-red detector
isochrone chart
Itoculo
jimmy-hat
Jreïda
kochia scoparias
Leptazole
Lomond Hills
low-reflectances
maltene
memory module error
Mermaid Tavern
minidiscus subtilis
Nelsonia
Newton-Cotes
nickel radiation screen
niggerkin
open filter
pacific moon-birth theory
Packard Bell NEC
pars me
pastoritial
Pativilca
Periston-N
phonal
plunge-cut milling
portableapps
previouses
primary reduction
progression die
prosecution fee
prosternal episternum
reed position switch
rhus poisoning
rocket motor assembly
rockettes
rotary drum vacuum filter
Saul Steinberg
sea-ears
Shakhab
showmanish
special function selection
spicebushes
stale flesh
state-system
suicide note
tcherina
tesselated
test balloon
turgidous
unavoidabilities
value-free
vena sternocleidomastoidea
ventral branches
wetherun
width of reduced face
wingsecond
workwords