why i chose space elevators n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Why I Chose Space Elevators PowerPoint Presentation
Download Presentation
Why I Chose Space Elevators

Loading in 2 Seconds...

play fullscreen
1 / 12

Why I Chose Space Elevators - PowerPoint PPT Presentation


  • 56 Views
  • Uploaded on

Why I Chose Space Elevators.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Why I Chose Space Elevators' - dreama


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
why i chose space elevators
Why I Chose Space Elevators
  • Implementation of a “space elevator” would revolutionize man’s accessibility to space the same way the automobile changed our mobility on earth’s surface. In fact, the true impact is probably beyond anyone’s speculation, much as Henry Ford didn’t truly know what he was starting.
  • My research is inexorably linked to satellites, so I have more than a casual interest in how those bits of metal and silicon get launched into space.
slide2

Space Elevators

Jeri Brunson

NanoChemistry Seminar

Nov. 14, 2005

http://www.spacedaily.com

Student Affiliation:

Dept. of Physics, USU

http://www.grahamharrop.com

slide3

Getting To Space

  • Shuttle failure is currently
  • 2% or 1 out of every 100 flights.
  • Aging orbiters – 1 of 57.
  • Each launch costs around
  • 1 billion dollars

http://www.clipartgallery.com

slide4

Future of the Space Shuttle

Photo from Japan Aerospace Exploration Agency - http://spaceinfo.jaxa.jp

Shuttle missions are now restricted to delivering payloads to the International Space Station, further diminishing the value of their use.

slide5

New Ideas and Concepts for Space Access

  • Russian scientist,
  • Konstantin Tsiolkovsky, was
  • inspired by the Eiffel Tower
  • in 1895.
  • In 1978, science fiction author, Arthur C. Clark, wrote about carbon fiber materials that would fulfill
  • Tsiolkovsky’s vision.

http://www.alumni.umn.edu/

slide6

Mechanics of Space Elevators

r = 42,170 km

v = 3070 m/s

http://hyperphysics.phy-astr.gsu.edu

The weight of the cable and climbers becomes important in determining the counterweight.

slide7

Building a Tether

  • The tether must be able to
  • withstand the Earth’s atmosphere
  • and the space environment.
  • High voltages and currents
  • develop as it cuts through the Earth’s
  • magnetic field.
  • It must be both extremely light-
  • weight and stronger than any material
  • now used in aerospace construction.

Photo from Wikipedia –

http://en.wikipedia.org

slide8

Nanotubes Get Involved

  • Carbon nanotubes and carbon nanotube composite materials show great promise for use in developing a space elevator.
  • Potentially 100x stronger
  • than steel, flexible like plastic.
  • Long chains could be braided together, short chains encased in a polymer matrix.

Photo from Georgia Institute of Technology http://gtresearchnews.gatech.edu

slide9

Conceptual Designs

Conceptual designs from Liftport Group - http://www.liftport.com/

And European Space Agency - http://www.esrin.esa.it/

slide11

Future of Space Elevators

Time estimates for viable elevators range from decades to centuries.

“We’re closer now than lightyears to go.”– R.E. M.

acknowledgements
Acknowledgements
  • NASA
  • Liftport Group
  • Institute for Scientific Research
  • Wikipedia.com 