Walmart suing Tesla for Solar panel fires

[Lasse Langwadt Christense]

fredag den 30. august 2019 kl. 17.40.39 UTC+2 skrev Winfield Hill:

Bill Sloman wrote...

On August 29, 2019, jla...@highlandsniptechnology.com wrote:

Some Brit-originated but US developed technology was
important too, like radar and sonar and proximity fuses.

Radar was not only originated in the UK, but also largely
developed there.

That's totally correct, and the details make fascinating
reading. It's incredible how important the magnetron was.

That was developed in the US as a direct consequence of
the Tizard mision.

They carried final working versions, seeking to quickly
take advantage of manufacturing capabilities in the U.S.

I've written here about the 5D21 tube, and its amazing
20kV 15A capability. Using four of them, with a pulse-
forming transformer, to pulse magnetrons to 250kW, was
an important part. Maybe that was developed in the U.S.


--
Thanks,
- Win

https://youtu.be/q27TzT6Zr6w?t=34m49s

 

[Bill Sloman]

On Wednesday, August 28, 2019 at 11:46:07 PM UTC+10, jla...@highlandsniptechnology.com wrote:

On Wed, 28 Aug 2019 07:38:37 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 27/08/19 22:12, John Larkin wrote:
On Tue, 27 Aug 2019 22:06:55 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 27/08/19 20:35, John Larkin wrote:
On Tue, 27 Aug 2019 20:14:10 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 27/08/19 18:18, John Larkin wrote:
On Tue, 27 Aug 2019 09:29:08 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 26/08/19 23:25, John Larkin wrote:
On Mon, 26 Aug 2019 23:08:14 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 26/08/19 22:22, John Larkin wrote:
On Mon, 26 Aug 2019 20:50:23 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 24/08/19 19:15, jlarkin@highlandsniptechnology.com wrote:
On Sat, 24 Aug 2019 07:34:28 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 24/08/19 01:21, Bill Sloman wrote:
On Saturday, August 24, 2019 at 5:43:00 AM UTC+10, John Larkin wrote:
On Thu, 22 Aug 2019 23:46:10 -0400, bitrex <user@example.net> wrote:

On 8/22/19 10:23 PM, Bill Sloman wrote:
On Friday, August 23, 2019 at 5:03:44 AM UTC+10, John Larkin wrote:
On Thu, 22 Aug 2019 13:54:22 -0500, Jon Elson
elson@pico-systems.com> wrote:

On Wed, 21 Aug 2019 21:12:58 -0400, bitrex wrote:

<snip>

You snipped my invitation to show some electronics that you have
designed. That is the topic here.

I snipped it because it was a transparent attempt to
deflect the conversation away from what *we* had been
*discussing* in this thread/sub-thread.

I confess. It was a crude, futile attempt to deflect you on-topic.

Scarcely. The subject line of the thread is

"Walmart suing Tesla for Solar panel fires"

John Larkin is always inviting people to "to show some electronics that you have designed".

This is merely a put-down, based on his delusion that he designs a lot of electronics, and that every last little variation in his product line is interesting and novel.

--
Bill Sloman, Sydney

 

On 30 Aug 2019 08:40:26 -0700, Winfield Hill <winfieldhill@yahoo.com>
wrote:

Bill Sloman wrote...

On August 29, 2019, jla...@highlandsniptechnology.com wrote:

Some Brit-originated but US developed technology was
important too, like radar and sonar and proximity fuses.

Radar was not only originated in the UK, but also largely
developed there.

That's totally correct, and the details make fascinating
reading. It's incredible how important the magnetron was.

The Varian brothers invented the klystron in California; that was the
critical LO of a microwave radar superhet. MIT did some cool mixer and
duplexer and waveguide stuff, essentially inventing modern electronics
in the process.

https://www.dropbox.com/s/67foxzuqp8pnx6b/MoonBounce.JPG?raw=1


Dorothy Varian's book is worth reading too.

https://www.amazon.com/Inventor-Pilot-Russell-Sigurd-Varian/dp/0870152378/ref=sr_1_1?keywords=varian+inventor+pilot&qid=1567180324&s=books&sr=1-1


Yikes, look at the price. I have an autographed copy!

 

[Joseph Gwinn]

On Aug 30, 2019, Winfield Hill wrote
(in article <qkbg1a01l0p@drn.newsguy.com&gt:

Bill Sloman wrote...

On August 29, 2019, jla...@highlandsniptechnology.com wrote:

Some Brit-originated but US developed technology was
important too, like radar and sonar and proximity fuses.

Radar was not only originated in the UK, but also largely
developed there.

That's totally correct, and the details make fascinating
reading. It's incredible how important the magnetron was.

That was developed in the US as a direct consequence of
the Tizard mision.

They carried final working versions, seeking to quickly
take advantage of manufacturing capabilities in the U.S.

I've written here about the 5D21 tube, and its amazing
20kV 15A capability. Using four of them, with a pulse-
forming transformer, to pulse magnetrons to 250kW, was
an important part. Maybe that was developed in the U.S.

Yes. Raytheon (in the Boston area, near MIT) figured out how to make
magnetrons on the needed industrial scale. The UK version took a skilled
machinist a month to make one unit. Aside from the expense, this approach
could not make nearly enough magnetron tubes to support a war effort.

The key innovation was to make the copper body out of a stack of copper
punchings furnace-brazed into a solid body, rather than machining the solid
body from a single block of copper. It is this industrial invention that
transformed Raytheon into a defense prime contractor.

..<https://www.raytheon.com/ourcompany/history>

..<https://en.wikipedia.org/wiki/Raytheon#During_World_War_II>

Joe Gwinn

 

On Fri, 30 Aug 2019 09:12:46 -0700 (PDT), Lasse Langwadt Christensen
<langwadt@fonz.dk> wrote:

fredag den 30. august 2019 kl. 17.40.39 UTC+2 skrev Winfield Hill:
Bill Sloman wrote...

On August 29, 2019, jla...@highlandsniptechnology.com wrote:

Some Brit-originated but US developed technology was
important too, like radar and sonar and proximity fuses.

Radar was not only originated in the UK, but also largely
developed there.

That's totally correct, and the details make fascinating
reading. It's incredible how important the magnetron was.

That was developed in the US as a direct consequence of
the Tizard mision.

They carried final working versions, seeking to quickly
take advantage of manufacturing capabilities in the U.S.

I've written here about the 5D21 tube, and its amazing
20kV 15A capability. Using four of them, with a pulse-
forming transformer, to pulse magnetrons to 250kW, was
an important part. Maybe that was developed in the U.S.


--
Thanks,
- Win

https://youtu.be/q27TzT6Zr6w?t=34m49s

This is a good version of the story:

https://tinyurl.com/y5hsxtd9

along with Watson-Watts book of course.

 

[Michael Terrell]

On Friday, August 23, 2019 at 3:22:04 PM UTC-4, John Larkin wrote:

On Fri, 23 Aug 2019 18:37:34 +0100, Tom Gardner
spamjunk@blueyonder.co.uk> wrote:

On 22/08/19 19:42, John Larkin wrote:
The UK solved the forest fire problem by chopping down most of the
trees.

As did the Easter Islanders.

I you fly across the USA and look out the window, there can be
half-hour stretches when all you see is trees. With good vision, you
might see a road now and then.

We probably have more trees than 100 years ago.

But in many places, like here in California, the ultimate destiny of
trees is to burn. Our choice is to have lots of small fires or fewer
giant ones. Or log a lot maybe.

I own a couple hundred trees. Mo has named most of them. They won't
burn because we are subject to draconian forest maintenance and
defensible space rules, and because the cabin is not very flammable.

My dad retired from the 'Corregated Paper Box' industry. The company he worked for farmed millions of trees to ensure a steady supply of pulpwood. Some of them on land that had been grassland prior to them turning it into tree farms.

Before modern man came to this continent, lightning started fires that burned until the fuel ran out. Even then, morons would start fires to drive wild animals out into the open to hunt them.