# Number of perpetual motion machines conceived per year

**URL:** <https://boards.straightdope.com/t/number-of-perpetual-motion-machines-conceived-per-year/974475>\
**Category:** In My Humble Opinion\
**Created:** [November 6, 2022, 8:24pm UTC](https://boards.straightdope.com/t/number-of-perpetual-motion-machines-conceived-per-year/974475 "2022-11-06T20:24:55Z")\
**Posts on this page:** 1\
**Showing post:** 29

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**Author:** ![74westy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/74westy/32/3950_2.png) [@74westy](https://boards.straightdope.com/u/74westy)\
**Post date:** [November 7, 2022, 6:27pm UTC](https://boards.straightdope.com/t/number-of-perpetual-motion-machines-conceived-per-year/974475/29 "2022-11-07T18:27:16Z")

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> [@Horatius](#):
>
> Consider the application I mentioned above, US20210257895 “Systems and methods for generating electricity”. This is the abstract:
> 
> > Provided herein is a system for generating electrical current including a transducer subsystem having an upper end and a lower end, the transducer subsystem generating electrical current responsive to objects being dropped individually from the upper end to the lower end under the influence of gravity; and a return subsystem for returning a plurality of the objects collectively to the upper end using upthrust through a fluid body. A method for generating electrical current includes dropping objects individually from an upper end to a lower end of a transducer subsystem under the influence of gravity, wherein the transducer subsystem generates electrical current responsive to the dropping; harvesting the electrical current; and returning a plurality of the objects collectively to the upper end using upthrust through a fluid body.

Isn’t that [this](https://boards.straightdope.com/t/intuitively-debunking-a-perpetual-motion-machine/960903)?

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