时间:2018-12-24 作者:英语课 分类:Scientific American(一)月


英语课

 


  Archaeology’s taking to the air. Researchers spent a month this summer testing a semi-autonomous unmanned aerial vehicle—basically a semi-autonomous drone—high in the Andes in Peru. The goal: to scan a colonial town from the 1500s that had been built over an Incan settlement, and then abandoned.


  It’s a collaboration 1 between Vanderbilt University archaeologist Steven Wernke and engineering professor Julie Adams. Adams tricked out a vehicle from Aurora 2 Flight Sciences to include cameras and algorithms that allow the drone to achieve optimal 3 flight patterns. The resulting detailed 4 3-D map will be much more precise than high-resolution satellite images.


  Here’s Steven Wernke: “By our calculations this vehicle will be able to take imagery of an area in about 10-15 minutes that would take two or three entire field seasons using traditional methods.”


  The system can fit into a backpack. Once the researchers incorporate what they learned, they hope the technology can assist in the rapid cataloguing of a variety of archaeological sites, some of which are already being lost to the ravages 5 of new developments and time.


 



1 collaboration
n.合作,协作;勾结
  • The two companies are working in close collaboration each other.这两家公司密切合作。
  • He was shot for collaboration with the enemy.他因通敌而被枪毙了。
2 aurora
n.极光
  • The aurora is one of nature's most awesome spectacles.极光是自然界最可畏的奇观之一。
  • Over the polar regions we should see aurora.在极地高空,我们会看到极光。
3 optimal
adj.最适宜的;最理想的;最令人满意的
  • What is the optimal mix of private and public property rights in natural resources?私人和国家的自然资源产权的最适宜的组合是什么?
  • Optimal path planning is a key link for the sailing contest.帆船最优行驶路径规划是帆船比赛取胜的关键环节。
4 detailed
adj.详细的,详尽的,极注意细节的,完全的
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
5 ravages
劫掠后的残迹,破坏的结果,毁坏后的残迹
  • the ravages of war 战争造成的灾难
  • It is hard for anyone to escape from the ravages of time. 任何人都很难逃避时间的摧残。
学英语单词
4-amino-5-imidazolecarboxamide
Adilli
Alcaracejos
allophony
Alolya
astigmatic aberration
authorial
autobicycles
backwave
blueberrying
bobao
bouna
cable pot-head
cap mould
car sidelamp
CFC-E
chasing and fleeing games
christmas cactuss
clamping ring stop
commutator-bar
complete block
conductophore
contrufed
coordinate ring
cordwood
dagger moth
Diisocyanatotoluene
dinitrotoluenes
diplazium zeylenicum (hool.) moore
Distichodontidae
dizengoff
dropped anchor
editorially
equilibrium anomaly
errand-boys
factor of safety
fixed length operand
flat-knit
for ligamentum teres notch
forked lightning
gather a crowd
guipures
heptanoic acid
hinge margin(cardinal margin)
import duty memo of customs
initial shareholder
Kennedy Pk.
Kinyeti
langset
limited express ticket
limited-access data
liquidation quantity
little ladies
long beam cutting machine
low-energy side of energy gap
microseismic movement
minakshi
mis-iheren
mode of fluidization
moveable leg
movingness
Mφgeltφnder
navaga
non hero
non human wealth
open method
overdue cheque
oxygen-bearing
palpifer sexnotatus
partial yield spectroscopy
pe-pg
pfeifer
photoelectric phenomenon
plot-line
Poa jaunsarensis
polyprotic electrolyte
Prunus cuneata
public property
remotely sensed image
retributionist
sarabatane
sea legs
self aligning
Sellyakhskaya Guba
sensing marker
single subscriber terminal
Solotobe
stable secondary cohomology operation
staff structure
Syncumur
tajiks
tap-kick
tensoplast
treebeards
tridymus
Trigonotis mollis
trihydric alcohols
underidentified
vascular aurantii
vermicelloni
within-subjects
Z-Y plotter