Line In The Sand!!!!!

[speakerman39]

Folks, the line in the sand so to speak has been drawn. That is, the point where Earth and space meet has been found. Here is a link:

http://news.yahoo.com/s/space/20090409/sc_space/edgeofspacefound

So, are you buying it or is it just a bunch of BS? The final frontier has been discovered albeit the "edge of space". Makes for a good movie eh? Okay, maybe not, but is this really a matter of discovery? Who really knows?

Cheers,

Phil

 

[shenaniganz]

made for some good reading.. thanks

 

[speakerman39]

made for some good reading.. thanks

Your welcome. I just gave up on using my tape measure to double check their calculations..........Lmao!!!! It is just too darn far. So, I take it that you are buying it? No really, I guess they have methods that allows them to take such large measurements somehow via triangulation. Of course, there may be other ways that are more precise. Who really knows? It is all in the physics.

Cheers,

Phil

 

[highfigh]

Folks, the line in the sand so to speak has been drawn. That is, the point where Earth and space meet has been found. Here is a link:

http://news.yahoo.com/s/space/20090409/sc_space/edgeofspacefound

So, are you buying it or is it just a bunch of BS? The final frontier has been discovered albeit the "edge of space". Makes for a good movie eh? Okay, maybe not, but is this really a matter of discovery? Who really knows?

Cheers,

Phil

What happens when the atmospheric pressure changes?

 

[speakerman39]

What happens when the atmospheric pressure changes?

Well, to be candid here-I really don't know. At one time I was an engineering major. That was until I took Calculus II! I got an A in Calculus I, but prayed to God for a "withdrawl" pass in Calculus II........Lmao!!!!! I got an A in Physics I and II, but it was general coursework. In short, I haven't got a clue!!!! What is your take?

Cheers,

Phil

 

[Midcow2]

The edge ?

you need to track through it first space.com which is one of the businesses for Imaginova http://www.imaginova.com/company/ While most of the infromation appears to be somewhat technically correct the information is presented in a rather arbitrary and in fairly lay terms. To say that 100 kilometers is the edge of space is a rather arbitray speculation, just as deciding when a sound attentuates enough that it is not longer a sound.


There was an phD astrophysicist that particapted on these forums awhile back, I would like to hear his take on the article.

Interesting how NASA provide the information previously :

March 17, 2009
http://www.nasawatch.com/archives/2009/03/touching_the_ed.html

or at 50 miles March 14, 2007 mesospheric clouds
http://www.nasa.gov/mission_pages/aim/edge_of_space_prt.htm


Oh yeah, I took physics courses, etc. to a BSEE degree

Later,

MidCow2

 

[speakerman39]

you need to track through it first space.com which is one of the businesses for Imaginova http://www.imaginova.com/company/ While most of the infromation appears to be somewhat technically correct the information is presented in a rather arbitrary and in fairly lay terms. To say that 100 kilometers is the edge of space is a rather arbitray speculation, just as deciding when a sound attentuates enough that it is not longer a sound.


There was an phD astrophysicist that particapted on these forums awhile back, I would like to hear his take on the article.

Interesting how NASA provide the information previously :

March 17, 2009
http://www.nasawatch.com/archives/2009/03/touching_the_ed.html

or at 50 miles March 14, 2007 mesospheric clouds
http://www.nasa.gov/mission_pages/aim/edge_of_space_prt.htm


Oh yeah, I took physics courses, etc. to a BSEE degree

Later,

MidCow2

Great post! I am not sure I am buying it either Mid. However, thought I would post the article since coming across it earlier today. BTW, I did not know you had a degree in EE. So, you have had like (4) semesters of Calculus right? I never got passed Calculus II.............LOL!!!!! I am sure the findings will be open to debate among the scientific community before it is official. Thanks for posting Mid.

Cheers,

Phil

 

[Adam]

Seemed like a decent overview to me. Thanks, Phil.

To say that 100 kilometers is the edge of space is a rather arbitray speculation...

That's what the article said.

Meanwhile the boundary recognized by many in the space industry is also a somewhat arbitrary 62 miles (100 kilometers).

 

[highfigh]

Well, to be candid here-I really don't know. At one time I was an engineering major. That was until I took Calculus II! I got an A in Calculus I, but prayed to God for a "withdrawl" pass in Calculus II........Lmao!!!!! I got an A in Physics I and II, but it was general coursework. In short, I haven't got a clue!!!! What is your take?

Cheers,

Phil

If gas expands with temperature increase, the boundary has to change. If not, the pressure would climb faster. I can't think of many reasons for the atmospheric pressure to change that aren't caused by a temperature change so that being the case, if the temperature increases and there is an actual boundary like a shell (candy-coated, or otherwise) that can contain the pressure, the temperature will increase further, driving more pressure and temperature increase as long as whatever causes the temperature to increase remains relatively constant. IIRC, this is Boyle's Law ("Forcing the volume V of the fixed quantity of gas to increase, keeping the gas at the initially measured temperature, the pressure p must decrease proportionally. Conversely, reducing the volume of the gas increases the pressure").

 

[highfigh]

you need to track through it first space.com which is one of the businesses for Imaginova http://www.imaginova.com/company/ While most of the infromation appears to be somewhat technically correct the information is presented in a rather arbitrary and in fairly lay terms. To say that 100 kilometers is the edge of space is a rather arbitray speculation, just as deciding when a sound attentuates enough that it is not longer a sound.


There was an phD astrophysicist that particapted on these forums awhile back, I would like to hear his take on the article.

Interesting how NASA provide the information previously :

March 17, 2009
http://www.nasawatch.com/archives/2009/03/touching_the_ed.html

or at 50 miles March 14, 2007 mesospheric clouds
http://www.nasa.gov/mission_pages/aim/edge_of_space_prt.htm


Oh yeah, I took physics courses, etc. to a BSEE degree

Later,

MidCow2

100KM is a pretty handy number, though. It makes calculations very easy.

The Astrophysicist- his first name wasn't Mike, was it?

 

[Alex2507]

The Astrophysicist- his first name wasn't Mike, was it?

http://forums.audioholics.com/forums/member.php?u=10667

 

[lsiberian]

Great post! I am not sure I am buying it either Mid. However, thought I would post the article since coming across it earlier today. BTW, I did not know you had a degree in EE. So, you have had like (4) semesters of Calculus right? I never got passed Calculus II.............LOL!!!!! I am sure the findings will be open to debate among the scientific community before it is official. Thanks for posting Mid.

Cheers,

Phil

Cal 2 took me 3 times to pass I think.

As did Cal 3(due to laziness)

Physics 2 was one of the hardest courses I took and made me glad I went with a CS degree and not an EE degree.

How you define the edge of the earth is up to interpretation, but there are a lot of PHD candidates and profs that need something to waste their time on to validate their lives.

 

[speakerman39]

Cal 2 took me 3 times to pass I think.

As did Cal 3(due to laziness)

Physics 2 was one of the hardest courses I took and made me glad I went with a CS degree and not an EE degree.

How you define the edge of the earth is up to interpretation, but there are a lot of PHD candidates and profs that need something to waste their time on to validate their lives.

At least you passed Calc. II. It basically kicked my a$$ and weeded me out of engineering altogether. I can also relate to the Physics dilemma...........LOL!!!! It was very difficult to grasp. Sounds like you hung in there.

Cheers,

Phil

 

[speakerman39]

Seemed like a decent overview to me. Thanks, Phil.


That's what the article said.

As always, you are quite welcome my friend. Hope all is well for you and the pooch. I still grin every time I see her on that chair.........Lmao!!!! Spolied rotten..........hehe.

Cheers,

Phil

 

[speakerman39]

If gas expands with temperature increase, the boundary has to change. If not, the pressure would climb faster. I can't think of many reasons for the atmospheric pressure to change that aren't caused by a temperature change so that being the case, if the temperature increases and there is an actual boundary like a shell (candy-coated, or otherwise) that can contain the pressure, the temperature will increase further, driving more pressure and temperature increase as long as whatever causes the temperature to increase remains relatively constant. IIRC, this is Boyle's Law ("Forcing the volume V of the fixed quantity of gas to increase, keeping the gas at the initially measured temperature, the pressure p must decrease proportionally. Conversely, reducing the volume of the gas increases the pressure").

Yeah what he said ^^^^^^^^. So glad I am done with science because it blinded me in more ways that one.

Cheers,

Phil

 

[Adam]

So glad I am done with science because it blinded me in more ways that one.

[I couldn't help myself.]

 

[speakerman39]

[I couldn't help myself.]

LOL......I really don't know what is funnier. Me, digging this song back in the mid 80's OR you making reference to it...........Lmao!!!! I was in band camp when this song was popular. Needless to say, I thought I was the stuff.........hehe.

Cheers,

Phil

 

[Adam]

"This one time, at band camp..."

 

[speakerman39]

"This one time, at band camp..."

Hey hey hey, you never know. Oh boy those were the days. Best time of my life! I will NEVER forget those fun times.

Cheers,

Phil

 

[vizionut]

LOL......I really don't know what is funnier. Me, digging this song back in the mid 80's OR you making reference to it...........Lmao!!!! I was in band camp when this song was popular. Needless to say, I thought I was the stuff.........hehe.

Cheers,

Phil

I liked IT as well back in the 80's one of my submarines was my favorite from the album