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johnheritage

Member Since 27 Jul 2010
Offline Last Active Oct 10 2010 11:44 PM
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Posts I've Made

In Topic: Ball mill designs

04 October 2010 - 11:57 AM

Of coarse I know what it is, an ice cream churner, duh! Everyone loves the taste of home made ice cream!

Especially my secret Halloween recipe, "spooky ice cream".

The magic ingredient is grit.

In Topic: Ball mill designs

04 October 2010 - 07:59 AM

MASSIVE CAPACITY, STAINLESS, INDUSTRIAL BALL MILL ON EBAY, £1

In Topic: cakes not pyro the one's you eat

01 October 2010 - 05:15 AM

Pay Rise Cake from Curly Arrow (a blogger with a taste for synthetic chemistry)

The Swiss chemical company Fluka say thanks to their customers at Christmas by sending out reagent bottles full off Swiss chocolates

In Topic: Aluminium Tubes

30 September 2010 - 08:46 PM

I understand that adding an additional layer to deflect the blast/ shrapnel from a steel mortar that decides to disintegrate for whatever reason is done in the US. I've read about folks using old car tyres dropped over the mortar; I would think would be preferable to an outer steel tube/ cone which would IMO be more likely to add to the mass of airborne metal in the event of an accident. I think that large steel mortars in the states are normally buried, and the surrounding ground acts as a buffer and absorbs a significant amount of energy and would tend to deflect the blast upwards.


Yeah, exactly. It doesn't need to be.... [dr evil finger to the mouth] rocket science, it just needs to get in the way and soak up energy.

Burrying them is a prime idea, but involves a ton of digging, not fun if your only weapon to hand is the old spade. Tyres are a really nice idea. Rubber, elastic and banded for reinforcement. And usually found being set on fire around bad estates.

I see the point on the metal thing, but I suspect the cone would more likely flatten out or pop open (safely) before turning into shrapnel. I certainly wouldn't machine one from iron or anything like that. Too much work, too heavy, too expensive, too likely to fracture. If you pop riveted the seams on a rolled bit of sheet, the rivets would snap, like the locks on safety belts.

The tyres idea is a good one to investigate though!

In Topic: saltpetre pile

30 September 2010 - 05:04 AM

i found this link on the subject, you can still have your pile, i believe from a clip i watched a while back , beer drinkers urine is a good substitute for cow urine! i mean how would one get a bucket of cow piss?


Ask a farmer.

They have slurry pits FULL of piss and shit, cooking away. It's hard to sweep it away at the speed it drops out the end of the cows.

They might want some beer for it however. They value their shit.

Although, if you're talking to a farmer, he can probably get you a metric ton of nitrate to speed things up. :P

{edit}I was just reading some wiki and remembered nitrate fixing bacteria. I wonder how hard it'd be to isolate those from some soil, culture them up and then dump into into a big 210l barrel of piss & others to fix the nitrates in an easily extractable crystalline state. I can do plates EZ.

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