How to Pull an Object Up Against Earth's Gravity?

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Discussion Overview

The discussion revolves around the question of how to lift an object against Earth's gravity, specifically focusing on a project involving a flying disc that can hover and move in multiple directions. Participants explore various methods and technologies that could achieve this effect, including mechanical and natural solutions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests that to lift an object, a force equal to or greater than the gravitational force (9.8 x mass of the object) is needed.
  • Various methods are proposed, including using a ramp, a helicopter, a rocket, a hovering jet, a mag-lev train, or a balloon.
  • Another participant describes a specific application involving a "teflon/plastic-disc" that flies at a constant speed and requires a motor to control its ascent and descent.
  • There is a suggestion to use a toy helicopter as a model for the flying disc, with a request for explanations on how toy helicopters function.
  • A participant proposes an automated frisbee that operates similarly to a toy helicopter but is not manually controlled.
  • Another idea involves using a helium-filled balloon with tanks to control ascent and descent, along with battery-driven propellers for horizontal movement.
  • One participant humorously suggests using a bird as a natural energy source for the project.

Areas of Agreement / Disagreement

Participants express a variety of ideas and approaches, with no consensus reached on a single method to achieve the desired effect. Multiple competing views remain regarding the best way to lift and control the flying disc.

Contextual Notes

Some participants mention the need for further inputs and resources, indicating that the discussion is still in an exploratory phase with many unresolved aspects regarding the implementation of the proposed ideas.

Who May Find This Useful

This discussion may be of interest to hobbyists, engineers, and students exploring concepts related to lifting mechanisms, aerodynamics, and robotics.

abhimohpra
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Hi all,
I am new to Physics. Rather my profession is different.
We are working on a project at domestic level; where i have to handle physics theory.

Question: How can i pull object up at some distance from Earth contantly against Earth's gravity?

Thanks in advance.
 
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A ramp...?
 
Hi,
Not a ramp. A Simple application like an object constantly stable without any support at some distance from ground. (Oppose to gravity).
 
you need a force that is equal to (or greater if u want it to go up) 9.8 x 'mass of object', which is opposing the force of gravity... up.

assuming there is no other forces.
 
A helicopter or rocket, or hovering jet (like a harrier)?
 
Last edited:
Need more inputs...

Great guess experts!

@jackanese: thanks!

@Jeff Reid: Yes the application behaves amost like helicopter. But helicopter is a mass development.

It is a small kit(unit) , say a "teflon/plastic-disc" which flies at certain level at of constant speed. There has to be a motor to take that disc up from ground level and goes down when unit stopped.

see below diagram:

<----> : Flying disc (multi-directional movement UP/DOWN and FRWD/BKWD)

----------------------------- <= Ground

How can i achieve this?

Thanks in advance.
 
abhimohpra said:
@Jeff Reid: Yes the application behaves amost like helicopter. But helicopter is a mass development.

It is a small kit(unit) , say a "teflon/plastic-disc" which flies at certain level at of constant speed. There has to be a motor to take that disc up from ground level and goes down when unit stopped.

see below diagram:

<----> : Flying disc (multi-directional movement UP/DOWN and FRWD/BKWD)

----------------------------- <= Ground

How can i achieve this?

Thanks in advance.


A toy-helicopter ? For about 70 Euro, you can buy one. It does exactly that...
 
Maybe a superconductor?
 
  • #10
Hi,
@vanesch: :-) Initially it will look like toy-helicopter. In progress it has to lift bulk weight.
Anyways, your theory is useful.
Can anybody explain how toy helicopter functions?
Waiting for answer...
 
  • #11
abhimohpra said:
Can anybody explain how toy helicopter functions?
Waiting for answer...

Like a real one, but smaller...
 
  • #12
...a Frisbee?
 
  • #13
sorry guys for late reply ... was held in some work.

Yes it will function like "Frisbee" but machine operated and not manually.

Simply Automated frisbee.

Any idea how to proceed?

-
 
  • #14
Glue a toy helicopter to a frisbee?
 
  • #15
I want frisbee itself to be automated.
Simply small toy helicopter!

I would require your help in the form of useful websites, datasheets, whitepapers, e-books or forum help etc to build a toy helicopter.
 
  • #16
Fill a huge balloon with helium. Fix tanks to it. Tune the amount of helium so that when the tanks are empty, the balloon rises. Open valves to fill the tanks with oxygen to descend.

Add battery driven propellers if you need to control horizontal movement.

Stay away from strong winds.

k
 
  • #17
Hilarious thread. So may the most ingenious among you emerge and rise...

What about a bird? I keenly advocate natural energy sources.
 
  • #18
@ManDay : Yes pointed perfectly.
How can we implement Bird chars in toy like machine? Any material?
 

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