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DatahopaForumGeneral CategoryGeneral DiscussionHuman Breaks Sound Barrier



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Human Breaks Sound Barrier

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Online Snowcrash Topic starter
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The nutter did it. Good on him.

http://www.bbc.co.uk/news/science-environment-19943590

If you watch the 2nd video, it shows he nearly failed due to being in a flat spin. He gets the records for fastest human propelled by gravity (mach 1.24), highest freefall (128,100ft (24 miles; 39km) and another record I'm not sure of. He missed the longest freefall record though.
Posted October 15, 2012, 18:00:00 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

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Offline Diesel
England Posts: 1052
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Tell me Snowy, is it possible to go any higher ?.  scratch-head
Posted October 15, 2012, 18:16:11 PM Logged
It WILL be fine !...

Online Snowcrash Topic starter
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In a word, yes.

But I can't leave it there.
The problem is making a baloon that won't rupture. Helium is used 'cos it's lighter than air but your typical mylar balloon can only reach about 3km, maybe a bit more if you fill it less. The baloons they use for this and various atmospheric experiments are designed to allow the helium to expand without rupturing but they also require an amount of lift due to the payload, in this case 1 human. The record for an unmanned balloon is about 53km (compared to 39km for this record attempt). Yes, I did google it. It should, in theory, be capable of designing a balloon to go this high with a human but probabaly impractical.
Posted October 15, 2012, 18:29:11 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Offline Diesel
England Posts: 1052
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My thoughts were not about getting up there, more like how much further could you go before Gravitational pull was so weak that you just drifted away.  scratch-head
Posted October 15, 2012, 18:34:18 PM Logged
It WILL be fine !...

Online Snowcrash Topic starter
England Global Moderator
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Actual figures:
51.8km in 1972 (as of 2003)

Attempt for 55km but not done yet.

Both hydrogen balloons.

Quote
My thoughts were not about getting up there, more like how much further could you go before Gravitational pull was so weak that you just drifted away.

Never.
If only, it would save all that messing about with rockets.
Gravity up there is almost the same as down here. It's a lift to weight ratio thing.
Come to think of it, gravity in orbit is almost the same as down here. It's just cancelled out with the 17,000MPH circular velocity. Constant freefall.
Posted October 15, 2012, 18:41:31 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Offline Diesel
England Posts: 1052
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So would it be possible to go so high that you simply bounced off the atmosphere due to lack of gravitational pull ?.
Posted October 15, 2012, 19:02:26 PM Logged
It WILL be fine !...

Online Snowcrash Topic starter
England Global Moderator
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No.
The only way to go higher is to go faster to break the grip of gravity. At that point, 17,000 mph +, you need something that can handle the friction (if inside the atmosphere) and something that can handle zero pressure. Either way a balloon would pop.

It would be less costly, from a fuel point of view, to float/fly a rocket to the edge of space then accelerate into orbit.

Also, the heavier the payload the bigger the balloon the lower the buoyancy level.
Posted October 15, 2012, 19:19:38 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Online Data
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All I can say is:

Felix Baumgartner is a very brave man, you wouldn’t find me ever doing something like that.

I am impressed and oddly I feel proud of the man even though I’ve never met him.  worship
Posted October 16, 2012, 13:10:06 PM Logged

Offline DaveMorton
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Comfort the Disturbed! Disturb the Comfortable!

You know what struck me was the number of negative comments that were posted, many of which loudly screamed that the venture was a "colossal waste of money" that could/should have gone into AIDS or Cancer research instead, and I couldn't help but think that these loonies who think that way need to STFU, since they neither gave, nor received, any of the funding that paid for this, and that maybe, if they really want to see a cure for AIDS or cancer, they should consider getting a medical degree, becoming a research scientist, and getting down to business themselves. Bloody gits!

Sorry. Had to rant a bit. Smiley
Posted October 16, 2012, 16:27:09 PM Logged
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Online Data
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Yes I noticed all the negative comments too, what a load of gits, I agree Dave.

Nice little rant  thumbsup
Posted October 16, 2012, 17:23:50 PM Logged

Online Snowcrash Topic starter
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I used the word 'nutter' affectionately as you have to be a little nuts to do something like this.

I generally don't read comments. You Tube has left me tainted as to the general level of ignorance and intolerance of the human population. I never realised it was an either/or thing to do a sky dive or research cancer/AIDS. Can't we do both and still have enough to send probes to Mars (and smoke and drink and buy iPhones etc). My least favorite people are liberal, hand wringing, delegators. To them I say "get up off of YOUR ass and YOU do something".
This rant is in addition to Dave's and not nesc. his view.
Posted October 16, 2012, 17:32:42 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Offline DaveMorton
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Comfort the Disturbed! Disturb the Comfortable!

No, Snowy, you've pretty will nailed my feelings on this matter, too. Well done! Smiley
Posted October 16, 2012, 17:51:25 PM Logged
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Offline Freddy
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I despair at a great deal of the comments on YouTube, it really does nothing for my faith in humanity.
Posted October 16, 2012, 19:02:22 PM Logged

Offline sybershot
United States WWW Posts: 1429
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I do believe some peoples that comment on things on youtube  in that manor have a brain the size of a flea's eyeball  Tongue
Posted October 16, 2012, 19:51:28 PM Logged

Offline Art
United States Posts: 208
Rank: Apprentice Adept
It will come to this one day....

Too many people, IMHO, often look at the action taking place instead of the whole picture. They look at the needle instead of the life saving solution contained inside the syringe.

There is much to enjoy with sites like YouTube and much to learn, but comments, as far as I'm concerned are like opinions (and other unmentionables), everyone has one!

Go for the grain...not the chaff.

Good day mates!
Posted October 17, 2012, 11:00:46 AM Logged
In the world of A.I. it's the thought that counts!
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