Re: Electrostatic actuators to move robots legs...

On 9/13/24 13:57, Jan Panteltje wrote:

On a sunny day (Fri, 13 Sep 2024 12:14:32 +0200) it happened Jeroen Belleman
<jeroen@nospam.please> wrote in <vc134d$qf8s$1@dont-email.me>:
 

On 9/13/24 06:49, 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.
>

>
CERN is about fundamental, not applied, research. It doesn't spend
trillions either. Its annual budget is about 1.2 billion.

 How many would that feed?
  It uses so much power and produces so much CO2 that the glowball temperature now almost reaches the melting point of lead...
At the same time farmers here have their farms killed because they, who FEED the masses, produce a little bit of CO2.
  

It provides
the hardware and infrastructure for high energy physics research.

 Mostly bomb shelter tunnels for the WW3 US and UK is steering towards
 

Many thousands of scientists flock together there to use its facilities.

 Ant heaps
 

The results of high energy research may have been a bit disappointing
lately. That's the nature of fundamental research. You don't know if
you'll find something immediately useful.
>
The real purpose of CERN is to gather and keep an active community
of smart minds in Europe.

 Job creation for Albert Onestone parrots
  <This produces plenty of spin-offs that

eventually contribute to a dynamic and innovative economy. Money
spent by CERN directly benefits thousands of businesses in all of
its member states and beyond. Many start-ups are created by CERN
alumni or by other enterprising individuals who perceive the
opportunities.
>
Nations apparently still appreciate CERN. The number of member
states is steadily increasing. The current count is 24, but ten
more are still in the pipeline. Even non-member states get to
cooperate in its projects. Japan, the USA, and until recently
Russia have contributed hugely and eagerly. Most nations of the
world have international cooperation agreements with CERN.
>
CERN also has a teaching function. Young scientists get to learn
the ropes of research.

 Brainwash
 I wrote this before:
  nature is simple,
  in the shoot 2 Teslas at each other at supersonic speed experiment at the ZERN racetrack
  2 new elementary particles were discovered, the 'Nut' and 'Bolt'.
  Further investigation by mamaticians did show chirality in Bolts
  It was found there are more right-hand screwed ? Bolts than left hand
  so the whole universe must be mainly right-hand bolted together.
 

All this in an international environment

 Politics
 

where you get to work with people of all nations and cultures.
That in itself is precious.
>
Jeroen Belleman

 I have travelled the world and did just that.
Worked at a large accelerator too.
You hd soem allowence to spend some time on your own projects
that made me learn and design a few things I liked that actually worked.
That is a positive thing
Thas the whole place got radioactive contaminated a year or so after I left was alread predicted by me years earlier.
Wil CERN blow up earth creating the wrong particle?
Some time ago there was a fuss about that.
Very possible.
They discovered an FTL particle too, was it you who swapped the coaxas?
Most fishisicks there have no clue about even the equipment they are using.
 

I wasn't involved in that. The neutrinos came from the CNGS
installation, a target in a beam line tangent to the SPS and
sloping downwards into the earth, aimed at Gran Sasso in Italy.
I recall the physicists were greatly embarrased by the precipitous
publication of these obviously faulty results.
Jeroen Belleman