Jump to content
Sign in to follow this  
  • entries
    30
  • comments
    12
  • views
    787

WoP #25: Boyle's Flask Scam

Sign in to follow this  
SgtLongcoat

128 views

For anybody not familiar with Boyle's Flask, it's a reservoir of water connected at the bottom to a tube such that the water infinitely pours into itself. Essentially, perpetual motion. And it's only a theoretical concept.

With that in mind, watch this quick video:

https://www.youtube.com/watch?v=OS1KXMsE2qk

Done? OK, now, can you tell me what the video did wrong?

If you answered used an obscure method to trick the viewer into thinking it actually worked, you're 100% correct. Based on a few other videos which debunk the scam, fluid dynamics don't work like that, even for a carbonated beverage. When put into an actual constructed Boyle's Flask, without a hidden motor, liquids, even carbonated ones, will eventually reach an equilibrium point where the surfaces of both liquids are at the same height, WITHOUT pouring back into the flask. Even if the liquid is drawn out so that it reaches the end of the tube, instead of flowing down into the flask, the difference in pressure will actually pull the liquid back through the tube until it reaches dynamic equilibrium once again. Of course, this isn't saying perpetual motion is impossible, but it is saying that this specific instance has been largely disproved by actual science.

Sign in to follow this  


0 Comments


Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×