Much more restrictive here.
We can't have any cartridge-firing side-arm, as an example.

negligible knowledge but - with stemming like grit the worse that can
happen is a rain of grit particles - cannot become a high-velocity
projectile.
On the other hand I have seen videos of blasts being covered by all
sorts of things.

On 3/25/2024 3:01 AM, Richard Smith wrote:
> negligible knowledge but - with stemming like grit the worse that can
> happen is a rain of grit particles - cannot become a high-velocity
> projectile.
> On the other hand I have seen videos of blasts being covered by all
> sorts of things.

Maybe... of course anvil launching is a thing..

--
Bob La Londe
CNC Molds N Stuff

--
This email has been checked for viruses by AVG antivirus software.
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On 3/25/2024 2:59 AM, Richard Smith wrote:
> "Jim Wilkins" <muratlanne@gmail.com> writes:
>
>> Could you blast with black powder as a historical re-enactment without
>> official hindrance?
>
> Black powder can be had - you are allowed to own muzzle-loaders here in
> the UK. With licencing yes; but "doable".
>
> Whether a larger amount in the kg's could be had that way...
>
> Black powder is used by stone masons because it will split rock without
> any shattering.
> It is on sale in bulk - but sure you would need a licence for that.

Its can also reasonably be made in a home shop.

--
Bob La Londe
CNC Molds N Stuff

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This email has been checked for viruses by AVG antivirus software.
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On Sun, 24 Mar 2024 20:59:06 -0500
Snag <Snag_one@msn.com> wrote:

<snip>
>We are blessed here with an abundance of clay ... I was talking with
>a guy that has some experience with this and he suggested clay as an
>ideal tamping medium . There's a large flat rock right next to the stump
>that I might lay on top too .

Tannerite can make some pretty good blows too😉

https://www.youtube.com/results?search_query=tannerite+barn+blow

--
Leon Fisk
Grand Rapids MI

On 3/25/2024 3:15 PM, Leon Fisk wrote:
> On Sun, 24 Mar 2024 20:59:06 -0500
> Snag <Snag_one@msn.com> wrote:
>
> <snip>
>> We are blessed here with an abundance of clay ... I was talking with
>> a guy that has some experience with this and he suggested clay as an
>> ideal tamping medium . There's a large flat rock right next to the stump
>> that I might lay on top too .
>
> Tannerite can make some pretty good blows too😉
>
> https://www.youtube.com/results?search_query=tannerite+barn+blow
>

Yeah , but doesn't Tannerite require a sharp impact to set it off ?
Besides , I already have the Pyrodex ...
--
Snag
"They may take our lives but
they'll never take our freedom."
William Wallace

On 3/25/2024 1:39 PM, Bob La Londe wrote:
> On 3/25/2024 2:59 AM, Richard Smith wrote:
>> "Jim Wilkins" <muratlanne@gmail.com> writes:
>>
>>> Could you blast with black powder as a historical re-enactment without
>>> official hindrance?
>>
>> Black powder can be had - you are allowed to own muzzle-loaders here in
>> the UK.  With licencing yes; but "doable".
>>
>> Whether a larger amount in the kg's could be had that way...
>>
>> Black powder is used by stone masons because it will split rock without
>> any shattering.
>> It is on sale in bulk - but sure you would need a licence for that.
>
> Its can also reasonably be made in a home shop.
>

There are processes on the 'net that make it a lot easier than the
traditional ball or stamping mills . I've got about 80% of a ball mill
and I just bought 2 lbs of air float charcoal ...
--
Snag
"They may take our lives but
they'll never take our freedom."
William Wallace

On 3/25/2024 2:02 PM, Snag wrote:
> On 3/25/2024 3:15 PM, Leon Fisk wrote:
>> On Sun, 24 Mar 2024 20:59:06 -0500
>> Snag <Snag_one@msn.com> wrote:
>>
>> <snip>
>>> We are blessed here with an abundance of clay ... I was talking with
>>> a guy that has some experience with this and he suggested clay as an
>>> ideal tamping medium . There's a large flat rock right next to the stump
>>> that I might lay on top too .
>>
>> Tannerite can make some pretty good blows too😉
>>
>> https://www.youtube.com/results?search_query=tannerite+barn+blow
>>
>
>   Yeah , but doesn't Tannerite require a sharp impact to set it off ?
> Besides , I already have the Pyrodex ...

Commercial Tannerite does require a VERY sharp impact to set it off.
generally from a high power rifle. I seem to recall there is a formula
that can be set off by a rim fire rifle impact, and a local associate of
mine claims there is a formulation he worked with that can be set off by
just fuse. His claim is the only one I have ever heard about
"Tannerite", but there are lots of "explosives" formulations that can be
made. Mythbusters supposedly were working on one of their dropped
projects when they discovered a very easy one made with very common
household products. They opted to drop that project and swear not to
reveal it to the public. Adam Savage mentioned it in on his TESTED
YouTube channel a while back.

--
Bob La Londe
CNC Molds N Stuff

--
This email has been checked for viruses by AVG antivirus software.
www.avg.com

On 3/25/2024 4:10 PM, Bob La Londe wrote:
> On 3/25/2024 2:02 PM, Snag wrote:
>> On 3/25/2024 3:15 PM, Leon Fisk wrote:
>>> On Sun, 24 Mar 2024 20:59:06 -0500
>>> Snag <Snag_one@msn.com> wrote:
>>>
>>> <snip>
>>>> We are blessed here with an abundance of clay ... I was talking with
>>>> a guy that has some experience with this and he suggested clay as an
>>>> ideal tamping medium . There's a large flat rock right next to the
>>>> stump
>>>> that I might lay on top too .
>>>
>>> Tannerite can make some pretty good blows too😉
>>>
>>> https://www.youtube.com/results?search_query=tannerite+barn+blow
>>>
>>
>>    Yeah , but doesn't Tannerite require a sharp impact to set it off ?
>> Besides , I already have the Pyrodex ...
>
> Commercial Tannerite does require a VERY sharp impact to set it off.
> generally from a high power rifle.  I seem to recall there is a formula
> that can be set off by a rim fire rifle impact, and a local associate of
> mine claims there is a formulation he worked with that can be set off by
> just fuse.  His claim is the only one I have ever heard about
> "Tannerite", but there are lots of "explosives" formulations that can be
> made.  Mythbusters supposedly were working on one of their dropped
> projects when they discovered a very easy one made with very common
> household products.  They opted to drop that project and swear not to
> reveal it to the public.  Adam Savage mentioned it in on his TESTED
> YouTube channel a while back.
>

There are formulae for sugar , stump remover , and horticultural
sulfur ... Those compounds are usually used for "rocket motors" . Though
as I understand they are "castable" ... probably not suitable for
Richard's purpose unless crushed into a fairly fine (thinking FFF as in
black powder) granule . Surface area to volume ratio is the key here .

--
Snag
"They may take our lives but
they'll never take our freedom."
William Wallace

On 25/03/2024 18:39, Bob La Londe wrote:
> On 3/25/2024 2:59 AM, Richard Smith wrote:
>> "Jim Wilkins" <muratlanne@gmail.com> writes:
>>
>>> Could you blast with black powder as a historical re-enactment without
>>> official hindrance?
>>
>> Black powder can be had - you are allowed to own muzzle-loaders here in
>> the UK.  With licencing yes; but "doable".

You need a firearms certificate for the muzzle-loader, and a separate
explosives certificate for the black powder.

Strangely, you don't need an explosives certificate to buy smokeless,
double-base etc powders, though you do in theory need a firearm certificate.

You may also need a license to store the stuff (if over 15kg? iirc).

>> Whether a larger amount in the kg's could be had that way...

Afaik there is no limit to the amount allowable on the certificate,
though a black powder certificate will say you are allowed eg 10kg: and
the storage license if needed.

>> Black powder is used by stone masons because it will split rock without
>> any shattering.
>> It is on sale in bulk - but sure you would need a licence for that.
>
> Its can also reasonably be made in a home shop.

Not legal in the UK without a manufacturing license, which is way harder
to get and WAY WAY more expensive than a certificate to just buy it
unless you are talking multi-ton quantities.

There used to be a small fireworks factory license, which was cheap and
you could make half a ton of BP under it; but alas no more :(

UK explosives licensing law is complex; there used to be a load of
acronyms for documents - COER, RCA, POMSTER - but they "simplified" it
by taking out the acronyms, and leaving everything else the same ... so
if you talk about a license nowadays, it could be one of many types
(make, store, transport etc) , and without the acronyms you don't know
what it is.

(there is only one type of explosives certificate, it says you are a
good boy and can do what it says on the certificate, generally acquire
and maybe keep specified explosives in specified quantities, though that
can vary widely. There is also a firearms certificate, which is different)

(this is a basic overview, there are some differences for very large
quantities of BP and for storage in mines which I'm not too sure about)

Peter Fairbrother

Thanks Peter for explaining all this to our across-the-Atlantic cousins.
Very much more restrictive here.
It is so normal to go up to the counter at the club and buy a box of
rounds for your host's handgun you are going to have a go with - in the
sense of being repectful of your host's hospitality - normal in the US.
Not here. No part of any of it is permitted.

Black powder licence to have typically a kilo provided you are a member
of a registered firearms club and have a firearms licence is fairly
readily had I gather.

There was a gunpowder mill in a valley near where I live, by the way.
Buildings, dams and culverts leading to water wheels for the grindstones
still there.
Stayed on as a fuse works.

Nitroglycerine-based then, from 1880's (1890's).
Big Nobel factory on a sand-dunes area nearby ("Upton Towans").

"Richard Smith" wrote in message news:m1wmpnxv27.fsf@void.com...

Thanks Peter for explaining all this to our across-the-Atlantic cousins.
Very much more restrictive here.
--------------------------------------

We do understand, and fight hard to preserve our Constitutional rights. Most
are under attack.

https://abc7ny.com/nyc-squatters-investigation-new-york-law/14578206/
"In New York, squatters have rights after 30 days. It's written in the law
that squatters have to be taken to court, making it difficult for police to
have the authority to remove them."

On 27/03/2024 20:45, Richard Smith wrote:
> Thanks Peter for explaining all this to our across-the-Atlantic cousins.
> Very much more restrictive here.
> It is so normal to go up to the counter at the club and buy a box of
> rounds for your host's handgun you are going to have a go with - in the
> sense of being repectful of your host's hospitality - normal in the US.
> Not here. No part of any of it is permitted.
>
> Black powder licence to have typically a kilo provided you are a member
> of a registered firearms club and have a firearms licence is fairly
> readily had I gather.

Yes, an explosives license for BP is almost automatically issued if you
have a certificate for a BP proofed firearm, and free in most Police areas.

Smoothbore firearms are technically shotguns; it's easier to get a
shotgun certificate than a firearm certificate for a rifled firearm, and
a shotgun certificate covers all the guns you happen to have, unlike a
full firearms certificate which names each gun.

For pyrodex or smokeless powder you just need a firearms certificate.

Peter Fairbrother

"Peter Fairbrother" wrote in message news:uu2vuv$3d2k0$1@dont-email.me...

https://www.euronews.com/green/2023/11/23/this-english-city-is-banning-gas-stoves-in-new-homes-heres-why

There are also efforts to ban the more robust buried energy infrastructure
here too, leaving us dependent on the most fragile, unstoreable and easily
attacked. I wonder why.

https://lexal.net/scifi/scifiction/classics/classics_archive/sheldon/sheldon1.html

I had <okay - self-sensoring here> - a go - with a smoothbore
reproduction flintlock pistol.
Some kick - best 20 grains you ever got - and when the pall of smoke
cleared couldn't believe how close to the bullseye the shot had landed.
Oh yes - missed out staring through a purple haze of the pan flaring for
what seemed enough time to real Tolstoy's "War and Peace" before that
enormous bang and recoil.
In Britain you have to understand that this can only be licenced if it's
an absolutely serious sport and dedication.
No implication of fun and levity is implied or intended.

"Jim Wilkins" <muratlanne@gmail.com> writes:

> "Peter Fairbrother" wrote in message news:uu2vuv$3d2k0$1@dont-email.me...
>
> https://www.euronews.com/green/2023/11/23/this-english-city-is-banning-gas-stoves-in-new-homes-heres-why
>
> ...

Saw a great "meme" - photo in the USA showing a several-locomotives
coal-train snaking along with words something like "Fuel delivery for
electric cars on its way".

My fear is detachment from reality.
Diverse energy sources yes.
Renewable energy sources - yes definitely where possible.
Nuclear (fission) power - well current power-stations are barely
plausible solutions. The one being built in Britain as Hinckley Point C
is vastly over-budget, behind schedule and in-trouble(?). Error to
scale-up the things it seems. We are with nuclear power stations about
equivalent to 1830's steam locomotives - "couldn't pull the skin off a
rice-pudding" and not inherently safe.

Not sure I am seeing a viable trajectory at the moment.

On 28/03/2024 17:42, Richard Smith wrote:
> I had <okay - self-sensoring here> - a go - with a smoothbore
> reproduction flintlock pistol.
> Some kick - best 20 grains you ever got - and when the pall of smoke
> cleared couldn't believe how close to the bullseye the shot had landed.
> Oh yes - missed out staring through a purple haze of the pan flaring for
> what seemed enough time to real Tolstoy's "War and Peace" before that
> enormous bang and recoil.
> In Britain you have to understand that this can only be licenced if it's
> an absolutely serious sport and dedication.
> No implication of fun and levity is implied or intended.

You might enjoy watching this  film about making rifles in Wiiliamsburg
https://www.youtube.com/watch?v=X_O1-chxAdk using old school techniques.
I can remember seeing it in school when  I lived in the US in the 1970s.

"Richard Smith" wrote in message news:m11q7uxn1o.fsf@void.com...

"Jim Wilkins" <muratlanne@gmail.com> writes:

> "Peter Fairbrother" wrote in message news:uu2vuv$3d2k0$1@dont-email.me...
>
> https://www.euronews.com/green/2023/11/23/this-english-city-is-banning-gas-stoves-in-new-homes-heres-why
>
> ...

Saw a great "meme" - photo in the USA showing a several-locomotives
coal-train snaking along with words something like "Fuel delivery for
electric cars on its way".
-------------------------------
That's how it is here.
-------------------------------
My fear is detachment from reality.
Diverse energy sources yes.
Renewable energy sources - yes definitely where possible.
Nuclear (fission) power - well current power-stations are barely
plausible solutions. The one being built in Britain as Hinckley Point C
is vastly over-budget, behind schedule and in-trouble(?). Error to
scale-up the things it seems. We are with nuclear power stations about
equivalent to 1830's steam locomotives - "couldn't pull the skin off a
rice-pudding" and not inherently safe.

Not sure I am seeing a viable trajectory at the moment.
-------------------------------
The big hurdle is sufficient safe and affordable battery storage.

Sodium-ion batteries might be cheap enough. Promising for static
applications (Li-ion for mobile applications).
Pump-storage hydro. schemes are viable where you have togography.

Nuclear fission power has to way improve.
In the USA you can have inland water-cooled-reactors - PWR's (and BWR's)
- because you have continental-sized rivers to take away the
abundant!
waste heat.

Can see nuclear reactor operating temperature has to go way way up to
increase efficiency. Then power plants can be small (mass-produced so
cheap) and located inland - much less waste heat to disperse.
Distributed, for energy security.

Reach I think it's 1060C and you can produce hydrogen no electric
intermediary. So you could make electricity all day and hydrogen all
night. 100% loading on the plant.

"Richard Smith" wrote in message news:m1jzlljt3z.fsf@void.com...

Nuclear fission power has to way improve.
In the USA you can have inland water-cooled-reactors - PWR's (and BWR's)
- because you have continental-sized rivers to take away the
abundant!
waste heat.

------------------------------------------------

The antis will find some excuse to cripple any energy source with lawsuits.
https://www.nhpr.org/environment/2023-12-12/judge-rules-in-favor-of-bow-coal-plant-in-lawsuit-alleging-harm-to-merrimack-river

https://www.pnas.org/doi/full/10.1073/pnas.2302313120

https://e360.yale.edu/features/hydropower-dams-energy-decline

https://www.citizensforresponsiblesolar.org/10-reasons

https://naacp.org/resources/resolution-wood-pellets-opposition

But who protests against this?
https://www.statista.com/statistics/1261301/countries-with-highest-coal-consumption/

Do you see a pattern?

Richard Smith <null@void.com> on Fri, 29 Mar 2024 09:16:16 +0000 typed
in rec.crafts.metalworking the following:
>Sodium-ion batteries might be cheap enough. Promising for static
>applications (Li-ion for mobile applications).
>Pump-storage hydro. schemes are viable where you have togography.
>
>Nuclear fission power has to way improve.

Could switch from Uranium fueled to Thorium. There isn't any such
animal as "enriched thorium", which minimizes that issue.

>In the USA you can have inland water-cooled-reactors - PWR's (and BWR's)
>- because you have continental-sized rivers to take away the abundant! waste heat.

Or scale down. Nuclear power's biggest issue is that effectively,
all the plants are Mega Plants, and each one is a one-off, hand
crafted artisan production. No economies of scale, which applies to
the learning curve for manufacturing as well.
>
>Can see nuclear reactor operating temperature has to go way way up to
>increase efficiency. Then power plants can be small (mass-produced so
>cheap) and located inland - much less waste heat to disperse.
>Distributed, for energy security.
>
>Reach I think it's 1060C and you can produce hydrogen no electric
>intermediary. So you could make electricity all day and hydrogen all
>night. 100% loading on the plant.
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."