Re: Electrostatic actuators to move robots legs...

On 16/09/2024 5:21 am, john larkin wrote:

On Sun, 15 Sep 2024 19:10:43 +0100, Jeff Layman <Jeff@invalid.invalid>
wrote:
 

On 15/09/2024 18:12, Nick Hayward wrote:

On Sun, 15 Sep 2024 11:38:53 +0100, Jeff Layman wrote:
>

On 15/09/2024 10:58, Cursitor Doom wrote:

On Sun, 15 Sep 2024 08:13:15 +0100, Jeff Layman wrote:
>

On 15/09/2024 03:49, john larkin wrote:
>

The best thing about MK is that it's close to Oxford.

>
I really must disagree. The best thing about MK is Bletchley Park.
It's more than possible that none of us would be here if it wasn't for
the activities at Station X in the early 40s.
>
It's perhaps interesting to surmise that if what went on at Bletchley
Park hadn't been kept secret until the mid 70s, perhaps the new town
envisioned in the 60s would have been called "Bletchley" in honour and
recognition of what it had done to hasten the end of World War II.

>
They've made a museum out of it and it's *very* well worth a visit.

>
I visited at the end of November 2009, when it had just opened and the
huts were still in a pretty rough state. It was a good time to go as it
was a very cold day and there were few visitors. I was lucky on twos
counts. Firstly, we were shown round by Jean Valentine (who worked there
during the war and had appeared on numerous "Station X" documentaries.
She was one of those who entered the various settings onto the Bombe
machine, and then phoned the possible decryption code to the hut where
Turing worked. It was more-or-less next door, but she had no idea where
it was, not even if it was at Bletchley Park!). Secondly, I was able to
chat to Tony Sale for a while, as there was nobody else around. He, of
course, was the driving force behind rebuilding Colossus. He had spoken
with Tommy Flowers, who designed and built the original, and helped Sale
with the rebuild as almost all the original documentation had been
destroyed on Churchill's orders

>
Astounding brain power those guys had. What is it about the English that
makes them such amazing thinkers? They're not so great when it comes to
building things affordably and efficiently, but as conceptualists, they're
simply unbeatable.

>
Brits (not just the English!) have always been good at problem solving.
We are good at research, but not so much at development (which is where
the money is made!). It's remarkable that at Bletchley Park three of the
greatest problem-solvers were there at the same time. Turing for his
work on Enigma, Bill Tutte for his work on Lorenz, and Tommy Flowers for
computing hardware and software (it's not well known that he paid with
money out of his own pocket for the construction of Colossus, as the
management there did not believe in it and would not pay for it).

 The brits pioneered radar, which arguably won WWII.
 The core technologies of microwave radar were the cavity magnetron,
the klystron LO, the crystal diode mixer, and waveguide technology.
Brits get credit for three.
 The MIT RadLab and Bell Labs did the heavy lifting to develop radar.

The MIT Radlab did the heavy lifting on the proximity fuse.
The UK had a working log-wave radar system in place and working when the war broke out - neither the MIT Radlab or Bell labs had anything to do with that.
Airborne centimeter radar (the H2S system) was developed at EMI Central Research and killed their ace engineer - Alan Dower Blumlein - in 1942, when a test flight crashed.
The UK did a lot of the heavy lifting on that system too.
--
Bill Sloman, Sydney