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Re: Electrostatic actuators to move robots legs...

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On a sunny day (Fri, 13 Sep 2024 20:55:09 +1000) it happened Chris Jones
<lugnut808@spam.yahoo.com> wrote in <jSUEO.167440$QvZa.5887@fx08.ams4>:

>On 13/09/2024 2:49 pm, Jan Panteltje wrote:
>> On a sunny day (Thu, 12 Sep 2024 14:43:02 +0200) it happened Jeroen Belleman
>> <jeroen@nospam.please> wrote in <vbuneq$8hap$1@dont-email.me>:
>> 
>>> On 9/12/24 12:34, Jeff Layman wrote:
>>>> On 12/09/2024 10:45, Cursitor Doom wrote:
>>>>> On Thu, 12 Sep 2024 05:00:38 GMT, Jan Panteltje wrote:
>>>>>
>>>>>> Artificial muscles propel a robotic leg to walk and jump:
>>>>>>    https://www.sciencedaily.com/releases/2024/09/240909113111.htm
>>>>>>
>>>>>> quote:
>>>>>>    "
>>>>>>    The actuators are oil-filled plastic bags, similar to those used to
>>>>>>    make ice cubes.
>>>>>>    About half of each bag is coated on either side with a black electrode
>>>>>>    made of a conductive material.
>>>>>>    Buchner explains that "as soon as we apply a voltage to the
>>>>>> electrodes,
>>>>>>    they are attracted to each other due to static electricity.
>>>>>>    ...
>>>>>>    "
>>>>>> And press the fluid out....
>>>>>> So electrostatic actuators!
>>>>>
>>>>> How does that not violate thermodynamics? You seem to be getting useful
>>>>> power from zero energy.
>>>>
>>>> How do little pieces of paper defy gravity when you put a charged comb
>>>> near them? Isn't the energy supplied by rubbing the comb against some
>>>> material to give it the charge to attract the paper? Where does the
>>>> voltage come from which is applied to the bag electrodes?
>>>>
>>>> Didn't we discuss something like this not too long ago, or was it in
>>>> another NG?
>>>> <https://en.wikipedia.org/wiki/Electrostatic_motor>
>>>>
>>>
>>> That was right here in s.e.d in July. And no, thermodynamics, or
>>> rather conservation of energy is not violated. It never is.
>>>
>>> I don't think that they can get useful amounts of work out of these
>>> things. The Science Daily article is useless, as always, and I did
>>> not bother to read the paper.
>>>
>>> Jeroen Belleman
>> 
>> At least they made something that works,
>> unlike the trillions spend at CERN that never do anything for anybody.
>> I would cancel all funding to CERN if they did not come up with something revolutionary and practical useful in a year.
>> He who does not want to see is practically blind.
>> 
>
>Kicad and web browsers are quite useful, even if the physics is of no 
>interest to you.

html was invented long ago by somebody from CERN
 https://nl.m.wikipedia.org/wiki/Tim_Berners-Lee
quote in Dutch:
 " Timothy John (Tim) Berners-Lee (Londen, 8 juni 1955) is samen met zijn toenmalig manager, de Belg Robert Cailliau,
 de bedenker en grondlegger van de technologie en het protocol, die het world wide web of wereldwijde web, afgekort tot www,
 mogelijk maakten. Hieraan werkte hij toen hij consultant-software-engineer in dienst bij het CERN in Zwitserland was,
 van juni tot en met december 1990"

Timothy John (Tim) Berners-Lee  only worked at CERN from june to december 1990
So basicaly nothing to do with CERN or elementary particles etc.
There is old html server code I had somewhere from a CERN website that I once used.
Modern browsers are hopelessly bloated with other stuff, mostly for enabling more advertizing :-)

Without CERN he likely would have invented it anyways, maybe earlier :-)

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Thread

Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-12 05:00 +0000
  Re: Electrostatic actuators to move robots legs... Cursitor Doom <cd999666@notformail.com> - 2024-09-12 09:45 +0000
    Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-12 10:27 +0000
    Re: Electrostatic actuators to move robots legs... Jeff Layman <Jeff@invalid.invalid> - 2024-09-12 11:34 +0100
      Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-12 14:43 +0200
        Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-13 04:49 +0000
          Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-13 12:14 +0200
            Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-13 11:57 +0000
              Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-13 21:07 +0200
          Re: Electrostatic actuators to move robots legs... Chris Jones <lugnut808@spam.yahoo.com> - 2024-09-13 20:55 +1000
            Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-13 11:38 +0000
              Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-13 20:40 +0200
                Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-14 05:55 +0000
                Re: Electrostatic actuators to move robots legs... Cursitor Doom <cd999666@notformail.com> - 2024-09-14 13:17 +0000
                Re: Electrostatic actuators to move robots legs... liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2024-09-14 18:46 +0100
                Re: Electrostatic actuators to move robots legs... Cursitor Doom <cd999666@notformail.com> - 2024-09-14 19:20 +0000
                Re: Electrostatic actuators to move robots legs... john larkin <JL@gct.com> - 2024-09-14 19:49 -0700
                Re: Electrostatic actuators to move robots legs... Jeff Layman <Jeff@invalid.invalid> - 2024-09-15 08:13 +0100
                Re: Electrostatic actuators to move robots legs... Cursitor Doom <cd999666@notformail.com> - 2024-09-15 09:58 +0000
                Re: Electrostatic actuators to move robots legs... liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2024-09-15 11:21 +0100
                Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-15 11:00 +0000
                Re: Electrostatic actuators to move robots legs... Jeff Layman <Jeff@invalid.invalid> - 2024-09-15 11:38 +0100
                Re: Electrostatic actuators to move robots legs... Nick Hayward <nhayward8990@protonmail.com> - 2024-09-15 17:12 +0000
                Re: Electrostatic actuators to move robots legs... Jeff Layman <Jeff@invalid.invalid> - 2024-09-15 19:10 +0100
                Re: Electrostatic actuators to move robots legs... john larkin <JL@gct.com> - 2024-09-15 12:21 -0700
                Re: Electrostatic actuators to move robots legs... Bill Sloman <bill.sloman@ieee.org> - 2024-09-16 18:03 +1000
                Re: Electrostatic actuators to move robots legs... john larkin <JL@gct.com> - 2024-09-15 12:11 -0700
                Re: Electrostatic actuators to move robots legs... Bill Sloman <bill.sloman@ieee.org> - 2024-09-16 17:54 +1000
                Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-14 19:50 +0200
                Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-15 05:51 +0000
                Re: Electrostatic actuators to move robots legs... john larkin <JL@gct.com> - 2024-09-14 11:21 -0700
                Re: Electrostatic actuators to move robots legs... Jeroen Belleman <jeroen@nospam.please> - 2024-09-14 21:49 +0200
                Re: Electrostatic actuators to move robots legs... Joe Gwinn <joegwinn@comcast.net> - 2024-09-15 18:41 -0400
    Re: Electrostatic actuators to move robots legs... Jasen Betts <usenet@revmaps.no-ip.org> - 2024-09-18 05:33 +0000
  Re: Electrostatic actuators to move robots legs... john larkin <jl@650pot.com> - 2024-09-13 12:56 -0700
    Re: Electrostatic actuators to move robots legs... Jan Panteltje <alien@comet.invalid> - 2024-09-14 05:56 +0000

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