Cluesforum—Exposing Mass Deception

can a hydrojet engine on a ship push the vessel forward if the water jet is sprayed above the water surface? Yes, water ejected into air (or vacuum or any space) from a hydrojet (attached to a boat) will push the boat forward. Reason is that the ejected water applies a force on the boat. The engine...

Boethius wrote:
Gas can't exist in a boundless, low-pressure, low-gravity vacuum like interstellar space.

The gas will evidently continue to exist, when you eject it into zero pressure vacuum. It cannot POUFF POUFF disappear! BTW - what is low-gravity vacuum? I have a feeling you are not serious.

You can't eject gas into a vacuum. Just open the valve of the Magdeburg hemispheres and air enters the vacuum. Vacuum is just lack of air. So you're saying if a hatch opened and gas left the ship to equalize the pressure, with no extra force applied to the gas, this alone could potentially move the...

Boethius wrote:
You can't eject gas into a vacuum.

Just open the valve of the Magdeburg hemispheres and air enters the vacuum. Vacuum is just lack of air.

I can see how a rocket is pulled towards a planet/star via gravitational attraction. But I don't see what this has to do with rocket propulsion. Gravity is just a force applied to the rocket by masses in space/vacuum. Same with a rocket engine attached to the rocket. It can also apply a force on th...

A rocket is not like a ship in the water. Don't you see? A ship is in contact with the water while a rocket isn't in contact with anything . The rocket in space/vaccum is in contact with other objects in space/vaccuum by gravity, i.e. with plenty things that you can see by light. If the rocket is c...

Unfortunately, we have two problems here, Heiwa: 1- The "plenty hot gases" of the rockets would immediately be sucked out by the immensely superior force of the external vacuum. 2- With nothing to push against - and with the rocket's pressure now equalized with the external vacuum, there ...

* Addendum Adding to the above-mentioned 'little problem', is the fact that rockets do indeed push against our relatively dense atmosphere (see the above 0,001 figure). Naturally, NASA will tell you otherwise - and this is one of their most infamous lies. They will repeat ad nauseam that their rock...

hoi.polloi wrote:The sea is the level upon which the forces of the water plumes first build acceleration against gravity.

No, the water jets only apply forces on the feet/hands of the person flying away.

Compare fire hose!

Simon - the water jets applied to the feet/hands of the flying person only apply forces on the feet/hands to keep the person aloft or flying away sideways. The sea below has nothing to do with it. It could have been a concrete floor but ... it is safer for the person to splash down into the water. :P

simonshack wrote: Who do you think is really behind this crap?

As the Swedish government is right wing, I think the riots are created by right wing hoodlums using innocent immigrant juveniles as a screen.

Yes, at the end of the fire hose I mentioned above. Water ejected out of a fire hose nozzle (into atmosphere or vacuum on Earth) results in reaction force that pushes me backwards. :) And THAT reaction force propelled you backwards - into outer space? :blink: Come on now. How many joules is that? A...

Flabbergasted wrote: Heiwa, is that really you at the other end? Or has the real Heiwa been kidnapped ?

Yes, at the end of the fire hose I mentioned above. Water ejected out of a fire hose nozzle (into atmosphere or vacuum on Earth) results in reaction force that pushes me backwards.

Would this guy be able to stay aloft (let alone ascend) at, say, 1km of altitude? (providing that a helicopter with a watertank supplied the water and the 200hp thrust of the water scooter). ... Actually, before you respond, I will tell you what I think would happen: the guy would just get very wet...

hoi.polloi wrote:What membrane or portal separates the vacuum from the chamber?

The combustion chamber is evidently open so that combustion gases can be ejected into the vacuum.