A simple challenge for those who claim they like topics related to space exploration

[Sarevok]

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hmmm I think naa sayop ning mga arguments ninyo. Sakto nang inyong giingon na muface opposite ang shuttle then fire rockets para mulower orbit BUT dili nato macompare ang atong space shuttle karon ug ang shuttle na gigamit ni Luke sa starwars or maybe sa USS Defiant sa DS9. Kay ngano? Ang atong shuttle karon dili kaayo maneuverable. Naay 360-degree thrusters (both x and y axis) ang shuttle sa scifi movies. This prevents the increase in radius when they fire their thrusters (without facing 180 degrees sa target) kung naa sila gigukod within an orbit. Wa man silay problema sa power mao ok ra nila sige gamit sa external thrusters nila para maneuver sa spacecraft.

[randzg]

Ok then, assuming your request is not a joke, I'll ask you a question. Answering this question will prove that you are indeed well aware of orbital mechanics and also, it proves nga you can be exempted from answering any of the questions here. So here's the question:

Why is it easier to send a rocket/satellite into a highly elliptical orbit around the earth, than a circular one?

If you indeed understand "basic orbital mechanics" then this should be a piece of cake for you.


-RODION

Hey rodsky, i think i have an idea for this question. pwede ko try answer this question? or is this intended for 1 person? anyway, mo balik lang ko karon afternoon mo online.

[rodsky]

nya u place the other satellite on lower orbit pag permiro pareho trajectory(wa ko kblo sa term path cguro) then para illustration lng unta to nga ibalhin ang usa ka satellite mao tong naka ingon ko anang "lower orbit".

mawala sa circular orbit, would go elliptical or fall to the earth or lost in space

If this is what you mean...



Then the shuttle will just orbit the earth at a faster rate than the ISS. It will neither fall into the earth nor will it be "lost" in space.

I am in the process of creating a 3D representation of gravity around a large body, so you can understand why Kepler's laws work the way they do. I'm pretty hopefully that most of you will understand all about orbits and gravity, once I finish the diagram.

-RODION

[rodsky]

Hey rodsky, i think i have an idea for this question. pwede ko try answer this question? or is this intended for 1 person? anyway, mo balik lang ko karon afternoon mo online.

Let's wait for blue's attempt, but you can also PM me your answer in the meantime.

-RODION

[bluedes]

If that statement was true, you shouldn't have used the words "orbital-near space flight" because there is no such thing.

i will avoid arguments about semantics, they lead to nowhere..
you're not the only intelligent life in istorya who knows dip-shit about science, u know..

Ok then, assuming your request is not a joke, I'll ask you a question. Answering this question will prove that you are indeed well aware of orbital mechanics and also, it proves nga you can be exempted from answering any of the questions here. So here's the question:

Why is it easier to send a rocket/satellite into a highly elliptical orbit around the earth, than a circular one?

If you indeed understand "basic orbital mechanics" then this should be a piece of cake for you.

its all in the properties of an elliptical orbit compared to a circular orbit. there is a *weak* point in an elliptical orbit where you can inject that satellite with little thrust relative to the magnetic poles of a heavenly object. compare that to a circular orbit where everywhere requires equal energy to get into its orbit.

you have anything harder than this?

to those who are unfamiliar with this topic, you can brush up on your analytic geometry and couple that with your astro-physics, and you'll get the drift.

I was a college instructor once, at MSU. I also taught amateur astronomy as a volunteer a few years back.

yeah, i can imagine you're a teacher.. because i am one too..

Most oftentimes, a misunderstanding or a misinterpretation of the manner by one delivers a point, that evokes the aura or appearance of being an "intimidating post" when in fact, it's just a means to express a point/idea.
-RODION

sorry, i come from a generation where teachers with intimidating remarks only produced mediocre and *lost* students.. i attempt to change that culture by encouraging students that all this *rocket-science* is a cinch to understand..

i am referring to the engineering college in a university here in cebu.. but i don't belong to that engineering college though..

[bluedes]

Let's wait for blue's attempt, but you can also PM me your answer in the meantime.

-RODION

gosh, gosh.. i hear my nick being mentioned again..

are we here to find out who's the best, or are we here to share our knowledge?

[bluedes]

i'd like to post questions similar to these then..

In four seasoned countries, during winter, the planet is actually closest to the sun, and during summer, the planet is actually farthest away from the sun.. why is this so? isn't it supposed to be the other way around?

[rodsky]

i'd like to post questions similar to these then..

In four seasoned countries, during winter, the planet is actually closest to the sun, and during summer, the planet is actually farthest away from the sun.. why is this so? isn't it supposed to be the other way around?

This statement alone proves that you have very limited knowledge of basic astronomy.

First, the reason why it is cold in winter and hot in summer has NOTHING to do with the distance of the earth from the sun. It has something to do with the tilt of the earth's axis, which at 23.5 degrees, is quite significant.

As you can clearly see from this diagram...


..when the axis is pointed towards the sun, it's summer in the northern hemisphere, and winter below the equator. Then, 6 months later, when the earth is on the other side of the sun, the earth's axis is pointed away from the sun, thus it's winter north of the equator and summer in the south.

This is why Christmas in Australia means BEACH PARTIES!

Finally, your reluctance to answer that question in orbital mechanics also proves that you are not learned in the subject, even if you say you are. And btw, this has nothing to do with proving who's "the best"--this is simply in response to your request of wanting a more "advanced" question, and I gave it to you, but you decline to answer it. Let the readers be the judge of your temperament now.

ranzdg, you may now attempt to answer the question.

-RODION

[cptn_star]

hav u guys flown a space shuttle na?

me and sir rodsky are simmers...whehehe...that could give a hint...

[cptn_star]

sir rodsky very nice thread u started here...la ko kakita ani daun dah...share sad unta ko..awahi nuon ko...wehehe....up for this kay makashare sad ta sa uban...