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
accessory shoe with electrical contact
Allaži
anthenoides laevigatus
book values
briefies
BTDA
calculus of variations in the large
casehardening stress
Chlorbutin
Choson haehyop(Nishi-suidō)
chrome-plating bath
ciliated epithelial cyst
cinnazeylanol
clinically
computer animation
continuous cooling transformation (cct)
copper oxide catalyzation
Culvers physic
Decca radio system
depth over width ratio of memory
desmodactylous foot
doublenuts
drilled valve stem
Drummond-Morison operation
Dupuytren's suture
endotrypsin
erythropoiesis suppressor
Exacum tetragonum
exceptious
eye focus
fanconi-hegglin(syndrome)
fellow scientist
ferrule fixing key
Fibonacci search method
fleetful
frm (fast resource management)
general principle
genus phrynosomas
give sb the push
go down as
grandrelle
gyro shaft
have the honour of
hereditary hematuria
high tide forecasting
hla antigens
imbrangling
impolsive level
infraorbital foramen
input-output framework
Jovian Van Allen belt
lacrimating gas poisoning
laterite
literate programming
lots
mandates
marsabit
medical scientist
metastrongyluss
milling arbour
miss operation
multi-handicappeds
Navajo language
not a sou
nutritive index
oakham
on the scent
over-bitten
oxazolidines
pachyperiosteoderma
partial pelletizing
pee-bird
phosphocane
presettlement
rasmuson
rat floods
reheater flow stoppage protection
reprobance
resistance capacity filter
shopworn goods
sieve tube segment
sleeve-fish
snickering
ST
starch iodide paper
subaqueous signalling
summatin interval
take ... ill
telematic service
terminal growth
three-grid valve
toolmaker's vise
unstable resonator
us hd
variable eccentric
Veratetrin
voltage spark
when the hell freezes over
wholesale network
winterin
world law
written all over sb's face