Move 70kg Person without Motors: Ideas to Solve

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Discussion Overview

The discussion revolves around the challenge of moving a 70 kg person without the use of motors, specifically focusing on methods to achieve circular motion with a circumference of around 50 meters. Participants explore various theoretical and practical approaches to this problem.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest using a spring with a large stiffness constant to launch the person, referencing cartoon-like scenarios.
  • Others propose using various modes of transportation such as horses, bicycles, scooters, or space-hoppers, although these may not directly address the problem as stated.
  • One participant considers the use of springs and inclined planes but expresses doubt about their practicality.
  • Another participant raises questions about the environment of movement (land, water, or air) and suggests specific methods for each: using roller skates or bicycles on land, boats with paddles in water, and kites or human-powered propellers in air.
  • There is a suggestion to use a rope to constrain movement in a circle while employing wheeled devices for propulsion.

Areas of Agreement / Disagreement

Participants express a variety of ideas and methods, with no clear consensus on the best approach. Multiple competing views remain regarding the feasibility and practicality of the proposed solutions.

Contextual Notes

The discussion lacks clarity on specific assumptions regarding the environment of movement and the definitions of the proposed methods. The practicality of some suggestions remains unresolved.

Unknown2x
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Without the use of motors? How could someone move a 70 kg person for around 50 meter circumference circles?

Any ideas on how you could solve the problem?
 
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Unknown2x said:
Without the use of motors? How could someone move a 70 kg person for around 50 meter circumference circles?

Any ideas on how you could solve the problem?

Some method:

Attach the person to an spring of a large stiffness constant, compress it and leave them free. Have you ever seen it at the cartoons? Probably when you see his face it will be like this--->
 
Unknown2x said:
Without the use of motors? How could someone move a 70 kg person for around 50 meter circumference circles?

Any ideas on how you could solve the problem?

They could ride a horse, or a bike, or they could walk. I guess they could go by scooter. Or space-hopper.

I guess this doesn't answer your question, so let us know what you want to do!
 
Basically create some vehicle without using motors and having a 70 kg person in it how could you move the person?

I was thinking about springs and inclined planes, but those are probably too extravagant.
 
Some ideas

Is the movement on land, in water, or in the air?

On land, use a 50 m rope and roller skates, bicycle, or cart, i.e. something with wheels. The bicycle can be used to provide propulsion by the person through a crank and gear system, and this could be applied to a cart. The rope simply provides a constraint to move in a circle, with one end fixed at the axis.

In water, use a boat - with paddles, oars, or crank and paddle-wheel or .

In air, use a large kite, unless one can design a human power propeller system.

Also on land, one could use a kite or sail for propulsion, but one must have wind.

Use your imagination.
 

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