A space elevator would be a transportation system consisting of a cable anchored to the Earth's equator and extending into space. A counterweight in geostationary orbit would provide enough centrifugal force to keep the cable upright. Climbers would carry cargo up and down the cable. The most promising materials for the cable are carbon nanotubes, boron nitride nanotubes, and diamond nano-threads. While the concept and requirements for a space elevator have been proposed, current technology has only achieved testing on a much smaller scale, and significant engineering challenges remain before a full-scale space elevator could be built.

1. SPACE ELEVATOR
A CASE STUDY DEPICTING THE PLANNING AND BENEFITS INVOLVED WITH SPACE
ELEVATOR.
PRESENTED BY:
SATISH
16BCE1089

2. What is a space elevator?
 A space elevator is a proposed type of planet-to-space transportation system.
 A space elevator is conceived as a cable fixed to the equator and reaching into
space. A counterweight at the upper end keeps the center of mass well above
geostationary orbit level. This produces enough upward centrifugal force from
Earth's rotation to fully counter the downward gravity, keeping the cable upright
and taut. Climbers carry cargo up and down the cable.

6. Location to built a space elevator.
 A space elevator could only be built on equator of the earth.
 A space elevator with cables makes use of the centrifugal forces caused by the rotation of the
earth. These forces' vertical component is highest at the equator, while it is absent at the poles.
 The equator passes through 13 countries those are Ecuador, Colombia, Brazil, Sao Tome &
Principe, Gabon, Republic of the Congo,Democratic Republic of the Congo, Uganda,
Kenya, Somalia, Maldives, Indonesia and Kiribati. These are the potential location where the
structure could be built.

7. Material:
 The most promising materials from which a space elevator could be built are as
follows;
 Carbon nanotubes
 Boron nitride nanotubes
 Diamond nano-threads

8. Carbon nanotubes
Boron nitride nanotubes ( under
microscope)
Diamond thread

9. Planning
 Selecting a location ( on the line of equator)
 Finance and insurance
 Availability of material
 Transportation of material
 Engineering new materials
 Beginning with construction.

10. Procedure
These are three hypothetical concepts to built a space elevator:
 Early construction Concept
 Cable seeding design concept
 Loop elevator design concept

11. Current status
Parameters Requirements Achived
Tether
Strength 30-100 meganewtons 7100 N
Climber
Speed 83 m/s 18.3 m/s
Altitude 36000 KM 1 KM
Payload - 10 KG
Lesar power beam
Power beam - 1 KW

12. Result
 Despite the requirements, currently the cable seeding design concept and
loop design concept are the prominent ways to construct a space elevator.