How the universe works

[Tatume]

Good bye.

[Oreo]

So?

.

[btroj]

If they're talking about black powder then they are correct.

[captaint]

Agreed. Of course they were probably dealing with smokeless. Just a little behind the times, that's all. enjoy Mike

[MT Gianni]

it is like reading a novel and having someone refer to the smell of cordite. Unless the novel was set in England or one of it's territories in the 1920's the writer failed in their research.

[Oreo]

Its a space / physics show, not a gun show. Get over it.

Imho.

[MBTcustom]

Well, shucks, I guess I'll never know what the original post said. I hate it when that happens! Don't go away mad tatume!

[Larry Gibson]

Lost me....in space??????

Larry Gibson

[stubshaft]

Rosebud!

[Cadillo]

Was that a publicly aired suicide note?

Nothing like being concise!

[Gibson]

Ever feel like you missed something?

Here I clicked expecting a treatise on quantum entanglement or something.

[lwknight]

Is this the " E=- " continuum?

[MtGun44]

??????????????????????????

[ShooterAZ]

E=- Adios.

[Oreo]

I saw the OP. It was a rambling venting post complaining about liberals supposedly screwing up the Science Channel show that bares the threads title. The only complaint in the OP was that gun powder was somewhat inaccurately described as consisting of charcoal, sulphur, and salt peter, and that they made some reference to firing a bullet in space.

My comments already express my point of view so I'll leave it at that.

[legend 550]

Soooooo if you fire a bullet in the vacuum of space and nobody is there to hear, will it go bang?

And 2. If you were traveling 18000 mph in orbit and fired a bullet with a velocity of 1245 f/s wouldn't you just pass the boolit ?

Sorry they begged to be asked.

[MBTcustom]

I have seen some weird threads in my time here, but this one takes the cake as the weirdest and one of the funniest!
You guys crack me up.

[David Bachelder]

Soooooo if you fire a bullet in the vacuum of space and nobody is there to hear, will it go bang?

And 2. If you were traveling 18000 mph in orbit and fired a bullet with a velocity of 1245 f/s wouldn't you just pass the boolit ?

Sorry they begged to be asked.

2.) No. You would be propelled in the opposite direction.

[HighHook]

Good bye is a statement I use when a screw or spring hits the ground and I cant find it. Of course its followed by some bad words...Just happened to me!

[Fishman]

You say goodbye I say hello.
Hello hello?
I don't know why you say goodbye I say hello.

[lavenatti]

Quote:
Originally Posted by legend 550
Soooooo if you fire a bullet in the vacuum of space and nobody is there to hear, will it go bang?

And 2. If you were traveling 18000 mph in orbit and fired a bullet with a velocity of 1245 f/s wouldn't you just pass the boolit ?

Sorry they begged to be asked.

2.) No. You would be propelled in the opposite direction.

And you may shoot yourself in the back.

[mdi]

If you fired a bullet, velocity 1245 fps, while traveling 18,000 mph, wouldn't the bullet now be traveling 18,000 mph + 1245 fps???? (someone else will have to do the math!)

BTW, I shot an old Hoover vacuum someone left at the shootin' place. Does that count?

[camaro1st]

mdi did the hoover kick much?

[MtGun44]

Boolit would start at 18000 and add the launch speed, so would be going 18000 mph
plus the boolit speed. As to the noise, it will generate a pressure pulse locally, but due
to the vacuum the gases will quickly disperse. If you are very close, you should hear a
thump as the moving gas wave hits your space suit or craft. If the craft is very stiff,
you may not hear it, in a suit, there should be a pulse transmitted to the air inside
from very close range. Probably near zero by 5-10 ft distance.

Bill

[Gibson]

Boolit would start at 18000 and add the launch speed, so would be going 18000 mph
plus the boolit speed. As to the noise, it will generate a pressure pulse locally, but due
to the vacuum the gases will quickly disperse. If you are very close, you should hear a
thump as the moving gas wave hits your space suit or craft. If the craft is very stiff,
you may not hear it, in a suit, there should be a pulse transmitted to the air inside
from very close range. Probably near zero by 5-10 ft distance.

Bill

If it is intended to be like the old tree falling, gleaned from the writings of Berkeley (the esse est percipi, guy), it is dealing with sound. Then from a scientific perspective, the answer is, no. Sound implies vibrations picked up by an ear drum. However, in the philosophic sense it's different issue :)

God in the Quad

There was a young man who said "God
Must find it exceedingly odd
To think that the tree
Should continue to be
When there's no one about in the quad."

Reply:
"Dear Sir: Your astonishment's odd;
I am always about in the quad.
And that's why the tree
Will continue to be
Since observed by, Yours faithfully, God."

[Chicken Thief]

In an explosion there is two "sound" waves.
The Pressure/shock wave and the real sound wave. Think a supersonic plane, bang then engine noise.
http://www.youtube.com/watch?v=KC7zdZ00eZ4
In space the shock wave will travel some way before it is thinned into nothing, but a real sound wave will need molecules to travel, so space is "silent".

[Chicken Thief]

Regarding the speed, think Newtons 3'rd law.
For every action, there is an equal and opposite reaction.

Until the bullet leaves the barrel they are both trawelling 18000mph or 26400fps. So the bullet will have and end speed of 27625fps. The bullets energy will will reduce the shooters speed with an equal negative amount, wich we dont know.

[felix]

Yep! to the two posts above. ... felix

[Gibson]

No perfect vacuum exists in either interstellar or intergalactic space. There is both ISM and IGM.

I'm sure everyone is familiar with the horror film tag: "In Space, No One Can Hear You Scream" I took the query as a facetious post put up by "legend 550".

However. . .

http://science.nasa.gov/science-news/science-at-nasa/2003/09sep_blackholesounds/

[GOPHER SLAYER]

It was pithy.

[Gibson]

I thought the fellow was just joking around. In the vein of the "E=-" thread.

Too bad if he has gone but oftentimes it seems necessary at the time. Hopefully he'll come back.

My posts were just playing along. I know very little about the propagation of sound waves. But as to the real issue, sad to see someone go who has been here for closing in on three years go.

[MBTcustom]

It was pithy.

I will wear my pith helmet next time. Thingth like thith pith me off.[smilie=l:

[dragonrider]

It was pithy.


You type with a lisp??:kidding:

[Tazman1602]

C'mon tatume.

These guys have blasted me a dozen times over the years and I just keeping coming back. It's just an internet forum, feel the love!

Art

[MBTcustom]

You type with a lisp??:kidding:

Yeth, it keepth me from getting infractionth. Bethidth, they thtarted it. I thought reduthing a potht to "goodby" wath rather "pithy" too![smilie=l:
OK, that's about all of that I can stand.

[Seth_AZ]

Soooooo if you fire a bullet in the vacuum of space and nobody is there to hear, will it go bang?

And 2. If you were traveling 18000 mph in orbit and fired a bullet with a velocity of 1245 f/s wouldn't you just pass the boolit ?

Sorry they begged to be asked.
The bullet would now be going at 18000 mph + 1245 f/s, and you'd be going a little slower than 18000 mph now because the recoil would slow you down.[smilie=6:

[GL49]

NOTICE TO NEW GUYS: Don't worry about 'em, they get going like this all the time. :veryconfu

[toooldtocare]

Although I might have learned something here, I cant help but feel dummer

[runfiverun]

it's working as intended then.
it starts out slowly then gradually it gets worse and worse.
i can see the beginning stages kicking in you forgot the . at the end of yer sentan

[nanuk]

some things seem so simple at the beginning, then you find out they are not so

other things really are that simple

ie/ which came first, the chicken or the egg... that one is so simple, they teach it in grade school.
Same with the tree in the forest one.... Sound?? we learned about that too!

[Slow Elk 45/70]

:kidding::kidding:I also thought this might be a suicide note.... now I'm depressed...:twisted:

[fcvan]

At 18000 MPH, a 250 gr boolit launched from a 45 Colt would generate 396495 ft/lbs which would definitely be a hog busting load. Next time you see 'pigs in space' you can thank the muppet show.

[mpmarty]

And what's the ballistic coefficient of a boolit in space?

[felix]

The one that imparts zero friction. ... felix