Welcome to Gaia! ::

Science and Beyond- The Science Guild

Back to Guilds

A guild where you come to share ideas or get help on anything science related! 

Tags: science, fiction, help, share, discuss 

Reply Science and Beyond
Woot! 60 mile free fall! Goto Page: 1 2 [>] [»|]

Quick Reply

Enter both words below, separated by a space:

Can't read the text? Click here

Submit

60 mile free fall?
  Um.....Hell Yes! :D
  60...miles...GEEZ! * Falls over temporarily uncouncious *
View Results

tiki_boyX2
Crew

PostPosted: Thu Jun 21, 2007 9:11 am


Yes, the 60 mile free fall. Here's what happens, The Diver(Equipped with a specialy designed space Suit.) Rides a rocket up past the upper Atmosphere, then, well, jumps and begins his 10 minute free fall to Earth. You reach 2,500 miles an hour for the first part of the fall, until you hit the thicker lower Atmosphere which slows you down to about 120 mph. Then during the last 3 minutes you deploy your parachute at 3,000 ft. and glide down to the surface.
Now Why would we do this?
Naturally one answer is Sport, But there's no way in hell I'd do it.
But the main Reason is for Safety, imagine being an Astronaut in your shuttle and right before Re-entry your Shuttle is severly damaged somehow, but it's too late to turn back as you have already started Re-entry, so naturally the only way out would be to jump. And thanks to this Specially designed Space suit you can do it and live.

So then, My Question is, as a sport, would you be willing to Dive 60 miles down to Earth's Surface? If so why? If not, well why not? Personally I have a fear of Acceleration, so that counts me out.
And do you think this might become common place for people to start doing? Do you think it might push Humanity to start traveling out into space on an average basis without training as an Astronaut? In other words will going to space be as common as riding a plane?
PostPosted: Thu Jun 21, 2007 1:31 pm


Wow. I hadn't heard of this before. Personally, there is no way you could get me do do that for mere recreation either. However, if I was an astronaut aboard a doomed shuttle, I would most certainly jump.

As a person majoring in a branch of Environmental protection, I condemn this as a sport. When launched, rockets release large ammounts of CO2 into the atomsphere, and I feel that this "sport" is, inadvertently, like destroying the atmosphere for fun.

Ulfin

Greedy Codger


Emily`s_Gone_Mad

PostPosted: Thu Jun 21, 2007 6:40 pm


I agree Ulfin,
rocket launching is not the best for our enviroment.

I have never heard of such a thing.
How can one stay concious falling at 2,500MPH?
That just sounds crazy and improbable. HOw long do you fall for 2,500 MPH?

For astronauts on doomed ships, that's great, but as a sport...I don't think so. The money spent on trying to make this an easy access recreation event, could be used for something more useful or important to our enviroment.
PostPosted: Thu Jun 21, 2007 7:08 pm


I dont think that is possible because we are missing a critical part in this:

Terminal Velocity

As stated in Wikipedia:

In physics, terminal velocity is the velocity reached when the drag force equals the weight of the body minus the buoyant force, which halts acceleration and causes speed to remain constant. As the object keeps on accelerating downwards, the drag produced is increased. At a particular speed, the drag force produced will be equal to the downward force, mostly the weight (mg), of the object. Eventually, it plummets at a constant speed called terminal velocity. Terminal velocity varies directly with the ratio of drag to mass. More drag means slower terminal velocity. Increased mass means higher terminal velocity. An object moving downwards at greater than terminal velocity (for example because it was affected by a force downward or it fell from a thinner part of the atmosphere or it changed shape) will slow until it reaches terminal velocity.



In other words, once an object reaches a speed, it cannot go any faster (while free falling) I think a humans is 65 mph, so they could not reach 2,500 mph

Here is a decription:

User Image - Blocked by "Display Image" Settings. Click to show.

Sun Charm
Vice Captain


tiki_boyX2
Crew

PostPosted: Thu Jun 21, 2007 8:04 pm


My friend I no longer trust Wikipedia very often.

Now remember I got this information straight out of my Popular Science Magazine, so I have not much doubt on the info. for it. I also Forgot to mention that the suit has Specially designed Drag Chutes for hitting the thicker part of the Atmosphere where the terminal velocity becomes 120 mph, also don't forget that when the diver jumps off his rocket chair thingy he is in space nearly, so there is no shear or drag created by surrounding matter allowing the simple basic laws of physics to take place.

@Emily and Ulfin: Yes I whole heartedly Agree, that would not help out the atmosphere at all. Unless of course the fuel is a certain type of Biodiesal, for which I qill make a thread about at a later time.
PostPosted: Thu Jun 21, 2007 8:24 pm


I agree with Emily and Ulfin: not for sport, but definitely to not go down with a shuttle. Although I'd be scared to death about, but, ironically, probably have a better chance of living.

labyrinthe larry


Diamond Nova
Crew

PostPosted: Fri Jun 22, 2007 6:35 am


It sounds like one of the most extreme sports, but not necessarily safe. If you fall that fast for that long, then you're bound to burst your eardrums or something.

People have died from re-entering the atmosphere on space shuttles. HOw would this said person be able to live? It sounds like some kind of April Fool's Joke to me, but it could be real!

Like Emily said, just for a sport. NO way, it ruins our atmosphere which is already battered up enough already with the greenhouse gases we let off by ourselves.
PostPosted: Fri Jun 22, 2007 7:09 am


@Le lei: It's a specially Designed Space suit, so there will be no burning up or anything. And besides the pressure inside the suit(as it is Obviously one piece)I imagine would remain constant so eardrums would not pop. And it has, like a normal space suit, an Effective Liquid Cooling System, and the outside surface of the suit is made of some heat resistant material called Nomex.

tiki_boyX2
Crew


Emily`s_Gone_Mad

PostPosted: Mon Jun 25, 2007 7:37 pm


But space shuttles are also specially designed.
There is no way that this suit could protect you 100%.
question
PostPosted: Wed Jul 04, 2007 6:20 pm


If you were to freefall from that height in a specially designed spacesuit, it just doesn't make much sense to me.

That "specially designed" space suit would have to be built like a space shuttle. If that were to happen, then the suit would either way a ton because of all the protection on it from the "special design" or you would just fall in a small pod-like space shuttle that makes it look like your freefalling.

Forget what I said about the pod. They will definitly use the suit, as said before, so therefore, if that suit were to be built specially like a space shuttle, it would be heavy as hell and almost stupid to even try to use. Think of what a space shuttle weighs (without everything inside of it like controls, computers, etc., but think of the shell in itself). Although the suit would be much smaller than a shuttle, it would still need plenty of protection and that would still make it very heavy and unethical to wear.

Diamond Nova
Crew


tiki_boyX2
Crew

PostPosted: Thu Jul 05, 2007 11:16 am


Not Neccasarily, When Was the Space shutle built? It's somewhat out of date, We have much better materials for the Job nowadays, Lighter weight, more heat resistant, and more flexible. But since the Shuttle still works and because we have so many, why fix what's not broke? And as I said, it's made of a heat resistant material called Nomex, it uses more materials like that, but does not name them in the article. It's also a pressure suit with a liquid cooling system. I'm sure there's more to it than is just provided in my magazine, so really the only term I can use to describe the suit is "specially designed."
PostPosted: Thu Jul 12, 2007 12:26 pm


Ulfin
When launched, rockets release large ammounts of CO2 into the atomsphere
...don't rockets use liquid hydrogen as fuel?

Tyris Stark

Seeker


tiki_boyX2
Crew

PostPosted: Thu Jul 12, 2007 7:42 pm


I'm fairly certain that it's liquid Hydrocarbons...liquid Hydrogen would be to explosive.
PostPosted: Thu Jul 12, 2007 9:00 pm


Emily`s_Gone_Mad
How can one stay concious falling at 2,500MPH?
Whatever velocity you're traveling at is irrelevant. You could be travelling at 1,000,000 miles an hour and to you, in your reference frame, it wouldn't be any different than standing still.

The only thing that really screws you up is acceleration.

However, what I'm curious about in this case is how you'd propose to prevent people from burning up on reentry. The shuttle turns white hot as it reenters due to the momentum the air particles impart on it as it falls. The same thing would happen to a person. And the shuttle only goes up 100 km, which is about the same as 60 miles.

Sun Charm
In other words, once an object reaches a speed, it cannot go any faster (while free falling) I think a humans is 65 mph, so they could not reach 2,500 mph
Terminal velocity depends on several factors that you haven't accounted for. The first is the amount of surface area in the direction of motion. If you're going feet first, there's not much for the air to push against so you fall faster. But if you're going chest first, there's more surface area, so you slow down.

Additionally, you also have to consider how much air there is to do the pushing. At 60 miles, there's not much to speak of at all, so 2,500 mph isn't all that unrealistic.

~Le Lei~
That "specially designed" space suit would have to be built like a space shuttle. If that were to happen, then the suit would either way a ton because of all the protection on it from the "special design" or you would just fall in a small pod-like space shuttle that makes it look like your freefalling.
Exactly right. It would have to be its own mini shuttle. Even then, it wouldn't be terribly comfortable. There's lots of wind sheers at that altitude that would knock you around like crazy. The only reason it's bearable on the shuttle is that it's so massive that it has a high enough mass that it's hard to change it's momentum.

Tyris Stark
Ulfin
When launched, rockets release large ammounts of CO2 into the atomsphere
...don't rockets use liquid hydrogen as fuel?
The big orange tank does. The two smaller side ones burn a mixture of powdered aluminum and ammonium perchlorate. The ones on the actual shuttle itself use hydrazine with oxygen

VoijaRisa


Sun Charm
Vice Captain

PostPosted: Tue Aug 07, 2007 1:22 pm


tiki_boyX2
My friend I no longer trust Wikipedia very often.

Now remember I got this information straight out of my Popular Science Magazine, so I have not much doubt on the info. for it. I also Forgot to mention that the suit has Specially designed Drag Chutes for hitting the thicker part of the Atmosphere where the terminal velocity becomes 120 mph, also don't forget that when the diver jumps off his rocket chair thingy he is in space nearly, so there is no shear or drag created by surrounding matter allowing the simple basic laws of physics to take place.

@Emily and Ulfin: Yes I whole heartedly Agree, that would not help out the atmosphere at all. Unless of course the fuel is a certain type of Biodiesal, for which I qill make a thread about at a later time.

That wasnt the point though. I was talking about terminal velocity in general. I have seen the same description on tv, news, science text books etc. I dont belive that it could of happened.
Reply
Science and Beyond

Goto Page: 1 2 [>] [»|]
 
Manage Your Items
Other Stuff
Get GCash
Offers
Get Items
More Items
Where Everyone Hangs Out
Other Community Areas
Virtual Spaces
Fun Stuff
Gaia's Games
Mini-Games
Play with GCash
Play with Platinum