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What does a rocket push against in space?

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posted on May, 21 2019 @ 08:55 AM
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a reply to: UpIsNowDown

Myth busters experiment was flawed. The chamber was pressurized by the excessive smoke produce by the rocket combustion. The chamber was no longer under vacuum. Can a rocket pressurize space?




posted on May, 21 2019 @ 09:11 AM
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a reply to: NicSign

Again,

For the exhaust gas to get out of a rocket motor, it has to push against the walls of the rocket motor creating a “For every action, there is an equal and opposite reaction.” Is that false.



posted on May, 21 2019 @ 09:17 AM
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a reply to: NicSign



Can a rocket pressurize space?


Yes. The burning of rocket fuel will create an area of high pressure above the nozzle which is open to space. Hence, why the high pressure gasses flow from the rocket out of the nozzle to the low pressure side. Newton’s third law is fulfilled by the expanding gasses pushing against the rocket engine to pressure its way out the rocket motor nozzle. The rate of reaction and nozzle opening will determine the pressure in the rocket motor and rate of flow out of the nozzle.
edit on 21-5-2019 by neutronflux because: Added and fixed



posted on May, 21 2019 @ 09:32 AM
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a reply to: NicSign

What was you argument why the expanding gasses pressurizing the rocket motor, the expanding gasses pushing against the rocket motor, and the expanding gasses pressuring and flowing out of the rocket motor will not create and equal and opposite physical force resulting in thrust in a vacuum?

Your argument would make sense if the argument was pressure at the outlet of the rocket nozzle was greater than the pressure that could be generated inside the rocket motor.
edit on 21-5-2019 by neutronflux because: Added and fixed.

edit on 21-5-2019 by neutronflux because: Fixed more



posted on May, 21 2019 @ 11:09 AM
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a reply to: neutronflux

On here rockets push against a low IQ and lack of understanding your wasting your time.



posted on May, 21 2019 @ 11:12 AM
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originally posted by: wmd_2008
a reply to: neutronflux

On here rockets push against a low IQ and lack of understanding your wasting your time.



Still fun to see what BS the individual will come up with, or flat out deny. Like denying the existence of 2000 satellites in space orbit.



posted on May, 21 2019 @ 12:06 PM
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a reply to: neutronflux

If the gas pushes on the wall as it is expanding to low pressure, when the wind blows on the back of your head, the air in front of you would push off your face as it moves away from you. But it doesn’t



posted on May, 21 2019 @ 12:07 PM
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a reply to: neutronflux

2000 satellites that are never seen in any space photo



posted on May, 21 2019 @ 12:12 PM
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originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


You must have missed this......

There are around 2000 satellites in orbit around earth. How did they get into space?



A NEW GRADING SYSTEM COULD DETER SATELLITE OPERATORS FROM JUNKING UP SPACE

www.n2yo.com...

As aerospace companies vow to fill Earth’s orbit with thousands of new satellites over the next decade, industry experts say it’s time to grade these operators on their efforts to keep space a safe and sustainable place. A rating system could keep companies honest, and ensure that Earth orbit remains open for business and doesn’t become bogged down with excess satellites and debris. Right now, there are nearly 2,000 operational satellites in orbit, according to the European Space Agency, and agencies are tracking more than 22,000 pieces of debris


You don’t believe in satellites placed in orbit around the earth? Track them yourself.



How to Spot and Track Satellites

www.universetoday.com...

The Internet has offered a wealth of information for satellite hunters. Every time I write about “how to spot the ISS,” someone amazes me with yet another new tracker App that I hadn’t heard of. One of my favorites is still Heavens-Above. It’s strange to think that we’ve been visiting this outstanding website daily for a decade and a half now. Heavens-Above specializes in satellites, and will show you a quick listing of passes for brighter satellites once configured with your location.





MEET THE GEEK WHO TRACKS ROGUE SATELLITES WITH COAT HANGERS

www.wired.com...

Inside his home office, on Tuesday, Coletta waits for Zhuhai's signals to appear. He sits in front of a laptop and an iPad, a big shelved monitor hovering above. Coletta has, since 2012, spent his free time eavesdropping on the sky, picking up satellite signals—signals that, for the most part, were never meant for him. He’s listened in with an antenna made of coat-hangers and moulding. He's done it with a rabbit-ear antenna, and with wire taped to yard-sticks. And now, he primarily does it with his quartet of TV antennas—the fanciest setup he's ever had, and still a steal at around $300.

Turning to the iPad, he watches an icon that shows Zhuhai's path across a digital globe. It hops its way in discrete digital steps across a red ellipse that delineates his antenna's field of view. He fiddles with the laptop's settings, adjusting the displayed frequency range and the volume. Soon, a staccato leitmotif comes from the speakers, accompanied by little line segments on the screen—the kinds of data he sonifies, then posts to Twitter and, in earlier days, to his website www.gosatwatch.com, like little space symphonies. This signal looks and sounds like Morse code.

“That’s the beacon,” he explains.



posted on May, 21 2019 @ 12:14 PM
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originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


www.skyandtelescope.com...

www.reddit.com...

www.eurastro.de...
edit on 21/5/2019 by OneBigMonkeyToo because: (no reason given)



posted on May, 21 2019 @ 12:23 PM
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originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


Your so disingenuous. Produce a photo, and you’ll just move the goal post by claiming fake with absolutely no proof.

How do I know there are satellites. I grew up rural in the 80’s. My parents went to having only three local channels to hundreds by installing an 8 foot diameter satellite dish. The dish could picked up different satellites by repositioning itself. Where I lived, everyone and their bother had one in their backyard. Some of the early dishes were solid and 10 foot in diameter.

Correct me if I am wrong, but satellite TV and internet is a present thing.......
edit on 21-5-2019 by neutronflux because: Added and fixed

edit on 21-5-2019 by neutronflux because: Fixed more



posted on May, 21 2019 @ 12:36 PM
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originally posted by: neutronflux

originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


Your so disingenuous. Produce a photo, and I’ll just move the goal post by claiming fake with absolutely no proof.

How do I know there are satellites. I grew up rural in the 80’s. My parents went to having only three local channels to hundreds by installing an 8 foot diameter satellite dish. The dish could picked up different satellites by repositioning itself. Where I lived, everyone and their bother had one in their yard. Some of the early dishes were solid and 10 foot on diameter.

Correct me if I am wrong, but satellite TV and internet is a present thing.......


I've already told him about the satellite set up I was involved in in the late 1980s. I think his eyes kind of skip over those bits.

Have a photo of the ISS, taken from my back yard:




posted on May, 21 2019 @ 12:55 PM
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originally posted by: OneBigMonkeyToo

originally posted by: neutronflux

originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


Your so disingenuous. Produce a photo, and I’ll just move the goal post by claiming fake with absolutely no proof.

How do I know there are satellites. I grew up rural in the 80’s. My parents went to having only three local channels to hundreds by installing an 8 foot diameter satellite dish. The dish could picked up different satellites by repositioning itself. Where I lived, everyone and their bother had one in their yard. Some of the early dishes were solid and 10 foot on diameter.

Correct me if I am wrong, but satellite TV and internet is a present thing.......


I've already told him about the satellite set up I was involved in in the late 1980s. I think his eyes kind of skip over those bits.

Have a photo of the ISS, taken from my back yard:





With Orion in the background, awesome.



posted on May, 21 2019 @ 02:01 PM
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originally posted by: NicSign
a reply to: neutronflux

If the gas pushes on the wall as it is expanding to low pressure, when the wind blows on the back of your head, the air in front of you would push off your face as it moves away from you. But it doesn’t


One. We know the pressure is pushing on the walls because an inadequately built motor will rupture and explode. Is that false.

Two. The rocket motor is a confined chamber with a reaction creating constant pressure with the outlet of the rocket acting like a pressure relief orifice. If the outlet is too small, the rocket motor will rupture and explode. Is that false.

Three. The confined space of a rocket motor with a reaction creating a constant pressure with expanding gasses pressuring out a nozzle is not the same thing as wind moving around your head in a wide open space. You are comparing apples and oranges. Gasses pressing up a confined space and moving through a restrictive orifice is not the same as air moving freely in a wide open space around a ball.
edit on 21-5-2019 by neutronflux because: Added and fixed



posted on May, 21 2019 @ 02:05 PM
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a reply to:

Your basically comparing water shooting out of a pressurized tank vs. a pole stuck in a stream open to the atmosphere.



posted on May, 21 2019 @ 02:21 PM
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this is easy peasy, get a balloon, blow it up, let it go, does the Ballon remain static or does it move?

How much pressure does it take to blow up the balloon?

now take the same balloon to the bath, fill the bath, get under the water with the balloon and blow it up.

why is it harder to blow up under water?

take same balloon, fill with water, let go of balloon, why does the water come out?



posted on May, 21 2019 @ 02:24 PM
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a reply to: NicSign

Or think about it this way.

A water boiler operating has its outlets shut. The relief valve lifts, but is undersized. Even though the relief valve is passing steam/water, the boiler ruptured because of the undersized relief valve in this scenario. The exploding boiler will hurl debris some distance.

The above is not the same thing as water flowing around a pole in a stream open to the atmosphere.
edit on 21-5-2019 by neutronflux because: Added exploded



posted on May, 21 2019 @ 07:03 PM
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originally posted by: NicSign
a reply to: neutronflux

2000 satellites that are never seen in any space photo


There is no doubt there are tens of hundreds of satellites in orbit around the earth in the vacuum of space. So how did they get there.



posted on May, 22 2019 @ 11:41 AM
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a reply to: neutronflux

Then when wind blows on the back of your head why can’t you feel the air in front of you push off your face as it moves away from you?



posted on May, 22 2019 @ 11:42 AM
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a reply to: neutronflux

Then why are those satellites never seen in space photos or live streams of space?



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