Space propulsion without mass ejecting

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SUMMARY

The discussion centers on the concept of using a slinky inside a box to explore propulsion in outer space without mass ejection. Pulses of longitudinal waves are generated at point A and absorbed at point B, causing the box to move to the right when the pulse is given and stop when absorbed. The primary challenge identified is Newton's third law, which states that for every action, there is an equal and opposite reaction, complicating the feasibility of this propulsion method. The topic of reactionless drives, including the EMDrive, is noted as a controversial subject and is categorized as a forbidden topic on the forum.

PREREQUISITES
  • Understanding of Newton's Third Law of Motion
  • Familiarity with longitudinal wave mechanics
  • Basic knowledge of propulsion systems
  • Awareness of reactionless drive concepts
NEXT STEPS
  • Research the principles of Newton's Third Law in relation to propulsion
  • Explore the mechanics of longitudinal waves and their applications
  • Investigate existing reactionless drive technologies, particularly the EMDrive
  • Examine the scientific community's stance on propulsion without mass ejection
USEFUL FOR

Physicists, aerospace engineers, and anyone interested in advanced propulsion concepts and the theoretical implications of reactionless drives.

leafy
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TL;DR
We have a box sit in outer space. Inside a box is a slinky connect at two points A and B. Pulses of longitudinal wave is given at A and absorbed at B. Can this system propelled through space?
When the pulse is given at A, the box move to the right. When it is absorbed at B, the box stop.
 
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leafy said:
Summary:: We have a box sit in outer space. Inside a box is a slinky connect at two points A and B. Pulses of longitudinal wave is given at A and absorbed at B. Can this system propelled through space?

When the pulse is given at A, the box move to the right. When it is absorbed at B, the box stop.
Newton's third law is the problem here.
 
leafy said:
Summary:: We have a box sit in outer space. Inside a box is a slinky connect at two points A and B. Pulses of longitudinal wave is given at A and absorbed at B. Can this system propelled through space?

When the pulse is given at A, the box move to the right. When it is absorbed at B, the box stop.

Reactionless Drives are on the list of Forbidden Topics. Thread is closed.
Forbidden Topics said:
EMDrive and other reactionless drives
See https://www.physicsforums.com/threads/nasas-em-drive.884753/
 
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