Oxygen effect

[Sash]

This is fascinating, I empty 1/2 the powder out of a cartridge, result more oxygen and greater velocity.

This has been proven with slow rifle powders, you get detonation, the preassure is so great that the action fails.

I don’t think the “detonation” is because of “more oxygen”.
Rather, there is so little powder in the case that the primer flashes the surface of the whole powder column at once, rather than progressively from the base to top. Doesn’t sound much, but it is a far bigger surface area that starts to burn, and FAST. Hence the stupid pressure that results.

 

[Foxyboy43]

I think you lot need to get out more….

 

[JockStalk]

I don’t think the “detonation” is because of “more oxygen”.
Rather, there is so little powder in the case that the primer flashes the surface of the whole powder column at once, rather than progressively from the base to top. Doesn’t sound much, but it is a far bigger surface area that starts to burn, and FAST. Hence the stupid pressure that results.

So….. if, maybe from cold, nerves or particularly bad buck fever, I’m shaking a lot and the powder in the cartridge gets agitated…….does that create the same risk of the primer flashing too much powder?
I’m thinking there is a scientific reason now for my high SD numbers.
Agitated flashing.

 

[gixer1]

Apart from you Keeling over and dying ……… no.

I was more thinking mass produced ammunition…

 

[Dalua]

That's an easy one, It was obviously the egg

Apparently so.

 

[Foxyboy43]

So….. if, maybe from cold, nerves or particularly bad buck fever, I’m shaking a lot and the powder in the cartridge gets agitated…….does that create the same risk of the primer flashing too much powder?
I’m thinking there is a scientific reason now for my high SD numbers.
Agitated flashing.

Err….. for clarity you may wish to set “Agitated Flashing” in context, just saying like….

 

[Malxwal]

@JockStalk, I'll be keeping my wits about me next time I stumble out of the Boat, certainly don't want to be mentally scarred as a result of your agitated flashing...

 

[JockStalk]

@JockStalk, I'll be keeping my wits about me next time I stumble out of the Boat, certainly don't want to be mentally scarred as a result of your agitated flashing...

Now the weather is warming up…..

 

[BryanDC]

…..when it’s dark…..is the grass still green?

Theoretically no it is not. My understanding is that the colours we see are reflected light. Grass just reflects more green light than other colours so we see it as green. If there is no green light to reflect then it cannot be green.
But maybe there is someone clever that knows for sure.

 

[Foxyboy43]

Theoretically no it is not. My understanding is that the colours we see are reflected light. Grass just reflects more green light than other colours so we see it as green. If there is no green light to reflect then it cannot be green.
But maybe there is someone clever that knows for sure.

Pretty much spot on BDC! Every day a skool day….

Google Search

 

[BryanDC]

If I pump my tyres up with helium instead of air, how much lighter would the car be and as it is rotational mass. How much less energy would it take to turn the wheels.

 

[Foxyboy43]

Please see post #22….

 

[JockStalk]

Is cereal a type of soup?

 

[User00056]

Your missing the big question for deep thinking

Was everything in the world actually black and white until colour film was invented?