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General Category => General Discussion => Topic started by: Snowwolflair on February 06, 2018, 09:17:29 PM

Title: Musk launches ARK B
Post by: Snowwolflair on February 06, 2018, 09:17:29 PM
Musk launches ARK B  :D
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 06, 2018, 09:51:25 PM
Just been watching it all at http://www.spacex.com/webcast (http://www.spacex.com/webcast)
simultaneous landing of the two boosters,  spectacular or what !! Got to be the iconic picture of the next great leap forward :)
Uncertain at the mo. if they managed to land the centre core back on the drone ship.
Title: Re: Musk launches ARK B
Post by: pesky badger on February 06, 2018, 10:00:08 PM
Liked the car - 'Don't Panic' on the dash.
Awesome job, even if the centre core is MIA.

Stu
Title: Re: Musk launches ARK B
Post by: njee20 on February 06, 2018, 10:06:39 PM
Agreed, the booster landing was staggeringly impressive, exciting stuff.
Title: Re: Musk launches ARK B
Post by: Bealman on February 07, 2018, 04:34:53 AM
Amazing. They lost the core booster, but hey, 2 out of 3 ain't bad.

What I find equally amazing is that the stupid dummy in his stupid car is up there in orbit - an important step towards getting humans back to the moon and on to Mars.
Title: Re: Musk launches ARK B
Post by: The Q on February 07, 2018, 07:21:59 AM
A Nice Norfolk UK Product launched there....









Norfolk Product? yes the Telsa MK1 is built on the chassis of the Lotus Elise built at Hethel in Norfolk...
Title: Re: Musk launches ARK B
Post by: pesky badger on February 07, 2018, 08:25:21 AM
I hope the American guy that is building his own rocket, so that he can prove the Earth is flat, was watching the video feed from the car - sure shows a mighty curvy curve to the planet.  Might save himself a few pennies and egg on his face. "But it's all a conspiracy I tell ya - everyone's in on it!!"

Stu
Title: Re: Musk launches ARK B
Post by: Vonzack on February 07, 2018, 10:56:36 AM
Yes, very impressive launch and recovery of the outer boosters, just a lack of fuel apparently cost them the core one. Liked the live stream of the Car from orbit and likewise the SAT Nav display. Well done to all involved.

Cheers, Mark.
Title: Re: Musk launches ARK B
Post by: railsquid on February 07, 2018, 11:15:28 AM
Anyone planning to replicate this in N scale?  :angel:
Title: Re: Musk launches ARK B
Post by: daffy on February 07, 2018, 12:59:35 PM
As with Voyager, I wonder if the Tesla Roadster and its occupant will feature in a future episode or film in the Star Trek series. :hmmm:
Title: Re: Musk launches ARK B
Post by: tutenkhamunsleeping on February 07, 2018, 01:17:22 PM
Quote from: daffy on February 07, 2018, 12:59:35 PM
As with Voyager, I wonder if the Tesla Roadster and its occupant will feature in a future episode or film in the Star Trek series. :hmmm:

It will return looking for The Creator, Major Tom :D
Title: Re: Musk launches ARK B
Post by: themadhippy on February 07, 2018, 02:17:54 PM
wondefull,lets waste a  couple of billion quid putting another piece of space debris into orbit all with  the long term aim of colonising another planet for mankind to ruin.
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 07, 2018, 02:53:59 PM
Quote from: themadhippy on February 07, 2018, 02:17:54 PM
wondefull,lets waste a  couple of billion quid putting another piece of space debris into orbit all with  the long term aim of colonising another planet for mankind to ruin.

Hence my reference to the B ARC, although I appreciate this will go completely over the heads of non believers  :D

But the mannequin should have been called Marvin.
Title: Re: Musk launches ARK B
Post by: NeMo on February 07, 2018, 03:30:39 PM
Quote from: themadhippy on February 07, 2018, 02:17:54 PM
wondefull,lets waste a  couple of billion quid putting another piece of space debris into orbit all with  the long term aim of colonising another planet for mankind to ruin.

Somewhat gloomy way to look at this. For sure it seems pointless, but it's a proof of concept, i.e., the ability to launch a large object within the budget of a private company.

Moreover, while strapping a car on board was a PR gimmick for sure, the ambition of the company (and hence their need for attention and ultimately investment) is very real. This heavy lift vehicle is a potential game changer, and surely essential if humanity is going to take its next steps into space -- which IMHO it must.

We can't stay on the Earth forever, and the ambition to take to the stars crystallises the highest ideals of our species. We're at our best when we're exploring, taking risks, and finding out what's out there...

The alternative is sitting here and waiting for whatever wipes us out because we've got nowhere else to go.

Cheers, NeMo
Title: Re: Musk launches ARK B
Post by: themadhippy on February 07, 2018, 03:43:39 PM
How about this for an alternative.Instead of spending billions trying to colonise another planet,that no doubt in a few million years will also be ruined,we use the cash to sort out the issues that are  making earth uninhabitable,or  maybe just wiping  out mankind and giving  nature another go would be best. .
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 07, 2018, 03:46:25 PM
Quote from: themadhippy on February 07, 2018, 03:43:39 PM
How about this for an alternative.Instead of spending billions trying to colonise another planet,that no doubt in a few million years will also be ruined,we use the cash to sort out the issues that are  making earth uninhabitable,or  maybe just wiping  out mankind and giving  nature another go would be best. .

And when our sun goes supernova we just say what a shame we didn't do something.
Title: Re: Musk launches ARK B
Post by: NeMo on February 07, 2018, 03:55:46 PM
Quote from: themadhippy on February 07, 2018, 03:43:39 PM
How about this for an alternative.Instead of spending billions trying to colonise another planet,that no doubt in a few million years will also be ruined,we use the cash to sort out the issues that are  making earth uninhabitable,or  maybe just wiping  out mankind and giving  nature another go would be best. .

It's not a zero sum game. That's the flaw in your argument. You're thinking that if I take from Paul to give to Peter, then Paul loses out. In truth the money I spend on Peter also benefits Paul, albeit indirectly.

If you design space stations and then deep space travel, you need to consider the following, among other things:
All of these things have serious benefits here on Earth, from making more fuel efficient cars to working out how to make crowded cities safer and more pleasant places to live.

Cheers, NeMo
Title: Re: Musk launches ARK B
Post by: tutenkhamunsleeping on February 07, 2018, 04:00:37 PM
Quote from: Snowwolflair on February 07, 2018, 03:46:25 PM
And when our sun goes supernova we just say what a shame we didn't do something.

Like take out that extended warranty the nice man who did the crinkly bits offered ;)
Title: Re: Musk launches ARK B
Post by: davidinyork on February 07, 2018, 05:54:56 PM
Quote from: Snowwolflair on February 07, 2018, 03:46:25 PM
Quote from: themadhippy on February 07, 2018, 03:43:39 PM
How about this for an alternative.Instead of spending billions trying to colonise another planet,that no doubt in a few million years will also be ruined,we use the cash to sort out the issues that are  making earth uninhabitable,or  maybe just wiping  out mankind and giving  nature another go would be best. .

And when our sun goes supernova we just say what a shame we didn't do something.

The chances of humanity still existing at that point is pretty minimal, especially if it carries on destroying everything at the rate it is at present.
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 07, 2018, 05:59:05 PM
Quote from: davidinyork on February 07, 2018, 05:54:56 PM
Quote from: Snowwolflair on February 07, 2018, 03:46:25 PM
Quote from: themadhippy on February 07, 2018, 03:43:39 PM
How about this for an alternative.Instead of spending billions trying to colonise another planet,that no doubt in a few million years will also be ruined,we use the cash to sort out the issues that are  making earth uninhabitable,or  maybe just wiping  out mankind and giving  nature another go would be best. .

And when our sun goes supernova we just say what a shame we didn't do something.

The chances of humanity still existing at that point is pretty minimal, especially if it carries on destroying everything at the rate it is at present.

But it will certainly deal with the plastic pollution 8)
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 06:00:44 PM
Quote from: Snowwolflair on February 07, 2018, 03:46:25 PM
And when our sun goes supernova
Too small to do that, it will (to make a long story short !) eventually swell up to a red giant,(maybe a few times)  extinguishing all life on earth (probably! although the helium flash when it finishes burning hydrogen and starts burning helium will do that anyway ), puff off a lot of mass (into a planetary nebula) and then shrink, become a very hot white dwarf and eventually fade away.
Sort of more of a whimper than a bang :)
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 07, 2018, 06:03:17 PM
Quote from: MalcolmAL on February 07, 2018, 06:00:44 PM
Quote from: Snowwolflair on February 07, 2018, 03:46:25 PM
And when our sun goes supernova
Too small to do that, it will (to make a long story short !) eventually swell up to a red giant,(maybe a few times)  extinguishing all life on earth (probably! although the helium flash when it finishes burning hydrogen and starts burning helium will do that anyway ), puff off a lot of mass (into a planetary nebula) and then shrink, become a very hot white dwarf and eventually fade away.
Sort of more of a whimper than a bang :)

That sounds even worse, time to leave. :wave:
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 06:08:24 PM
 :laughabovepost:

Title: Re: Musk launches ARK B
Post by: daffy on February 07, 2018, 06:09:33 PM
As the Sun will certainly go supernova sometime, isn't it time they started selling tickets? :hmmm: I'd just hate to be in the U.K. if the best view is going to be from Australia.

And will there be a DVD released to commemorate the event?

After all, as someone's Grandmother surely used to say, every problem is an opportunity. :)


(Just trying to stay positive after reading some recent posts on this thread.)
  :D
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 06:21:00 PM
Quote from: daffy on February 07, 2018, 06:09:33 PM
As the Sun will certainly go supernova sometime,

(Just trying to stay positive

I'll cheer you up then (and sorry to keep raining on the supernova parade :) ) the sun will not ! To become a Type I sn. it lacks a second star to steal mass from (
Jupiter is not big enough)
and to form a Type II sn. the sun is not massive enough itself (estimates vary / 8 to 15 times more massive)
So sleep easy in your bed, for now, but see my previous about red giants  :laugh3:
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 06:33:42 PM
On another positive note, the CO2 'problem' will actually make the place more habitable, warmer better crop yields etc., - - for some  :o ! Shame about the coastal cities though  >:(
Title: Re: Musk launches ARK B
Post by: davidinyork on February 07, 2018, 06:44:07 PM
Quote from: MalcolmAL on February 07, 2018, 06:33:42 PM
On another positive note, the CO2 'problem' will actually make the place more habitable, warmer better crop yields etc., - - for some  :o ! Shame about the coastal cities though  >:(

But it will also make some already hot areas uninhabitable, in addition to flooding caused by rising sea levels - and a large proportion of major cities are on or close to coasts.
Title: Re: Musk launches ARK B
Post by: daffy on February 07, 2018, 06:45:03 PM
Quote from: MalcolmAL on February 07, 2018, 06:21:00 PM
Quote from: daffy on February 07, 2018, 06:09:33 PM
As the Sun will certainly go supernova sometime,

(Just trying to stay positive

I'll cheer you up then (and sorry to keep raining on the supernova parade :) ) the sun will not ! To become a Type I sn. it lacks a second star to steal mass from (
Jupiter is not big enough)
and to form a Type II sn. the sun is not massive enough itself (estimates vary / 8 to 15 times more massive)
So sleep easy in your bed, for now, but see my previous about red giants  :laugh3:

But I've printed the tickets! :doh:
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 07, 2018, 06:47:44 PM
But being serious, it should have been a black roadster with black panels with black switches that light up black. (before it dives into the sun) :laugh:
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 06:53:09 PM
Quote from: daffy on February 07, 2018, 06:45:03 PMBut I've printed the tickets! :doh:
Ah! Oh dear, errr ummm, dress up in billboards*, walk up/down oxford street yelling "Doom, doom, the end is nay" somebody will buy even those who dont know it should be nigh :)

*what were those peeps called , so long ago I cant remember :)
Title: Re: Musk launches ARK B
Post by: Yet_Another on February 07, 2018, 07:03:04 PM
Quote from: davidinyork on February 07, 2018, 06:44:07 PM
But it will also make some already hot areas uninhabitable, in addition to flooding caused by rising sea levels - and a large proportion of major cities are on or close to coasts.
Win - win, then. No need to go to really hot places, and a reduction in cities.
Title: Re: Musk launches ARK B
Post by: Skyline2uk on February 07, 2018, 07:13:45 PM
Leaving aside the philosophical and ethical issues, as an Aeronautical Engineer this thing boggles my mind.

The fact that it can lift over 63 metric tonnes into orbit (compared to the Shuttle's 22.8 tonnes) is amazing enough....but the whole "lets land bits of it standing up right back where we left it is nothing short of whichcraft.

I cannot exaggerate how difficult this is, real Thunderbirds (or "You only live twice") stuff.

In fact if Musk announces he is off to his newly purchased private island, complete with large exstict volcano, we need to take notice. Because believe me, he has now done the hardest part of Blofeld's plan.....

Skyline2uk
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 07:30:53 PM
Quote from: Skyline2uk on February 07, 2018, 07:13:45 PM
Leaving aside the philosophical and ethical issues, as an Aeronautical Engineer this thing boggles my mind.

believe me, he has now done the hardest part of Blofeld's plan.....
Yes ! having played a small part in the Giotto to Halley mission, and the Ulysses solar polar mission I am well & truly boggled.

This is the best thing/hope since  Apollo was abandoned.
Title: Re: Musk launches ARK B
Post by: daffy on February 07, 2018, 07:33:47 PM
Agreed, and I'm no engineer. The World needs people like Musk. People who push the boundaries, and take the risks. This latest step in technological advance is stupendous and should be widely applauded.


Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 07:37:44 PM
Quote from: Yet_Another on February 07, 2018, 07:03:04 PM
Quote from: davidinyork on February 07, 2018, 06:44:07 PM
and a large proportion of major cities are on or close to coasts.
Win - win, then. No need to go to really hot places, and a reduction in cities.
:thumbsup:
or even win-win-win, we badly need a new tropical swamp carboniferous period to lay down some more oil reserves for future generations
(dons flame proof undergarments )
and I did mention 'shame about coastal cities' without being size-ist !  :angel:
Title: Re: Musk launches ARK B
Post by: joe cassidy on February 07, 2018, 07:40:19 PM
British wine will become the best in Europe !
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 07:52:05 PM
Quote from: joe cassidy on February 07, 2018, 07:40:19 PM
British wine will become the best in Europe !
:laughabovepost:
(A) What do you mean "will become" ? ! It already is.
Or
(B) by the time that happens it will be English Wine, cos all the various bits of Britain will have broke up !

ducks.
Title: Re: Musk launches ARK B
Post by: Bealman on February 07, 2018, 08:56:05 PM
All I think is this: two of the greatest Apollo heroes (they were all heroes) passed away in the last twelve months - Gene Cernan and John Young, and this sort of makes up for it.

It's time to go out there again!
Title: Re: Musk launches ARK B
Post by: Railwaygun on February 07, 2018, 10:15:17 PM
The Tesla seems to Be en en route to the asteroid belt!

Also Musk is developing a BFG!! Oops a BFR - Big Falcon Rocket!!

Mind you Bleep & Booster  got there first!!
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 10:19:19 PM
Quote from: Railwaygun on February 07, 2018, 10:15:17 PM
Oops a BFR - Big Falcon Rocket!!
are you sure about that middle word, I thought it had ing in it ?

:angel:
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 07, 2018, 10:35:45 PM
Quote from: Railwaygun on February 07, 2018, 10:15:17 PM
en route to the asteroid belt!
Ok I'll try to be serious ( for a mo.) with some mention of orbital dynamics :

It made a final apogee boost with deltaV a little larger than he told anyone beforehand, the result is that it now has a perihelion of where it was near here (previously its perigee) out to an aphelion near the asteroid belt between Mars and Jupiter.

The result is that it will, for the next umteen years, could be millions of years, *orbit the sun between perihelion near the Earth's orbit and its aphelion out there near the asteroids.
Its perihelion being near to where we - and our vital communications satellites, the ISS and various others will be passing by from time to time, -  the ISS can dodge but others can not.
In short it is more space junk !

*Unless it is perturbed by a close encounter with an asteroid, then no one knows where it will go next.

Title: Re: Musk launches ARK B
Post by: Yet_Another on February 07, 2018, 11:39:18 PM
Do we know what the orbital period is yet?

I guess it could be used for target practice when testing anti-asteroid missiles...
Title: Re: Musk launches ARK B
Post by: Railwaygun on February 08, 2018, 12:32:02 AM
 :-[
Quote from: MalcolmAL on February 07, 2018, 10:19:19 PM
Quote from: Railwaygun on February 07, 2018, 10:15:17 PM
Oops a BFR - Big Falcon Rocket!!
are you sure about that middle word, I thought it had ing in it ?

:angel:

:-[

thats what Musk called it!
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 08, 2018, 02:07:49 AM
Quote from: Yet_Another on February 07, 2018, 11:39:18 PM
Do we know what the orbital period is yet?
I dont know, cant find anything ! so,
I'll have a bash if no one else ? :) ( caveat it is 2am so anything might go wrong and I'll look very foolish when we all wake up! )

for a small body orbiting a massive one the period is given by

T=2.pi.sqrt((a^3)/u)

where
a = semi major axis = perihelion+aphelion divided by 2

u = standard gravitational parameter (for the Sun) = GM(sun) = 1.33x 10^20 m^3/s^2

the perihelion  (is just a bit less than the Earth orbit radius) =0.98AU
and aphelion approx orbit of Ceres = 2.61AU
converting AU to m we get
a=sma= 2.68x10^11m

and 2.pi= 6.88

sqrt( 2.68^3 x 10^33)/ (1.33x 10^20)
= sqrt(19.2 x 10^33)/(1.33x 10^20)
=sqrt((1.92/1.33) x 10^14)
=sqrt(1.44)x 10^7
=1.22x10^7

T=6.88x 1.22 x 10^7 seconds

T=8.39/31.5 x 10 year
T=2.66year

Hmmm, wot think ? spot any bloomers  ??
considering the period of Ceres is 4.5y it looks to be in the right ball park !
Title: Re: Musk launches ARK B
Post by: daffy on February 08, 2018, 04:52:17 AM
I'll bow to your mathematics, physics, and insomnia Malcolm. :admiration:

So, by my rough estimation based on your figure, when this car returns to trouble Earth's many satellites in late September 2020, should we refer to it as the Tesla Roguester? :hmmm:
Title: Re: Musk launches ARK B
Post by: Bealman on February 08, 2018, 05:07:04 AM
 :laughabovepost:  :laughabovepost:
Title: Re: Musk launches ARK B
Post by: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D
Title: Re: Musk launches ARK B
Post by: Bealman on February 08, 2018, 08:22:38 AM
More  :laughabovepost: :laughabovepost:
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 08, 2018, 08:42:59 AM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D

He is using an American Pie  :D
Title: Re: Musk launches ARK B
Post by: tutenkhamunsleeping on February 08, 2018, 09:36:59 AM
Quote from: Snowwolflair on February 08, 2018, 08:42:59 AM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D

He is using an American Pie  :D

Well that explains the 0.6 levy ;)
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 08, 2018, 09:46:26 AM
The poor sod in the spacesuit, now understands why he was granted such a long test drive.  :)
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 08, 2018, 12:49:31 PM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don’t think it will be a mission critical change  :D
Thanks for checking my numbers, that was an interesting exersize, not done owt like that for decades ! Sorry about the pi, and I had not touched a drop of liquor, onnest guv :) Can I plead dyslexicles or does tht only work with letters ?
I was so bothered by checking all those pesky powers of ten that pi escaped my attention.

Anyway : I did find this pic., tweeted by EM, of the new path which y'all might like :
https://pbs.twimg.com/media/DVZ0h3YW4AIc-9w.jpg:large

and a while back when it was supposed to go to Mars he tweeted that it would take about 6months, but nothing so far about the new duration.


Title: Re: Musk launches ARK B
Post by: keithbythe sea on February 08, 2018, 12:56:05 PM
No problems Malcolm, it just leapt out of the calcs at me! It's only 10% or so, so not really significant, it's not as if it's rocket science.. Oh, but hang on it is... :uneasy:
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 08, 2018, 01:03:04 PM
 :laughabovepost:   :claphappy:
Title: Re: Musk launches ARK B
Post by: Railwaygun on February 08, 2018, 02:17:30 PM
If anyone hasn't picked up the  Ark B reference ( perhaps because they are on board it...)

http://www.geoffwilkins.net/fragments/Adams.htm (http://www.geoffwilkins.net/fragments/Adams.htm)

Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 08, 2018, 03:25:21 PM
Quote from: Railwaygun on February 08, 2018, 02:17:30 PM
http://www.geoffwilkins.net/fragments/Adams.htm (http://www.geoffwilkins.net/fragments/Adams.htm)
Always worth a re-read anyhows ! They dont write'm like that no more.
Thanks for the link to his site, interesting set of fragments, it has been years since I listened to Mr Tambourine Man,,, which led into Peter,Paul & Mary ah! more nostalgia :)
Title: Re: Musk launches ARK B
Post by: Tom U on February 08, 2018, 05:04:22 PM
Quote from: Snowwolflair on February 08, 2018, 08:42:59 AM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D

He is using an American Pie  :D

In this case, I think it is all pi in the sky.
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 09, 2018, 12:31:13 AM
All change !
NASA - JPL have got proper tracking on the job and have found talk of asteroid belt is wildly exaggerated.
Estimated aphelion now down to about 1.7AU, (from 2.6) so just a little overshoot a bit beyond Mars.

The good news is that I found a post by someone else who worked the numbers and got a period of 2.4y so given my faux pas with pi, and that we were both working with the old data, that canna'be bad :)


Title: Re: Musk launches ARK B
Post by: daffy on February 10, 2018, 10:46:53 AM
Now the furore is dying down, it's time to reflect on just what a tiny dot on the Universal landscape the Tesla Roadster now is.
I came across this on the Newsdesk site yesterday .....


(http://www.ngaugeforum.co.uk/SMFN/gallery/61/5634-100218104339.png) (http://www.ngaugeforum.co.uk/SMFN/index.php?action=gallery;sa=view&id=61742)

Title: Re: Musk launches ARK B
Post by: daffy on February 10, 2018, 11:21:52 AM
..... and my earlier post here was incorrect:

Quote..... by my rough estimation ..... when this car returns to trouble Earth's many satellites in late September 2020 .....

This Popular Science article gives some insight into what may happen to the Tesla, including a comment by an astrophysicist about its trajectory that corrects my misconception.

https://www.popsci.com/tesla-roadster-returns (https://www.popsci.com/tesla-roadster-returns)
Title: Re: Musk launches ARK B
Post by: emjaybee on February 10, 2018, 11:48:35 AM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D

Please bear in mind that a fore-runner test rocket for the Apollo missions had to be destroyed in flight because it was veering off course.

The reason?

Some one put a colon instead of a semi-colon in the programming!

:smackedface:
Title: Re: Musk launches ARK B
Post by: Tom U on February 10, 2018, 01:38:43 PM
Quote from: emjaybee on February 10, 2018, 11:48:35 AM
Quote from: keithbythe sea on February 08, 2018, 07:23:43 AM
Great looking calculations Malcolm! Minor correction would be that 2 pi should be 6.28 rather than 6.88. I don't think it will be a mission critical change  :D

Please bear in mind that a fore-runner test rocket for the Apollo missions had to be destroyed in flight because it was veering off course.

The reason?

Some one put a colon instead of a semi-colon in the programming!

:smackedface:

Honestly I tried to resist typing this - but I can't help myself...
If some one put a semi-colon, the programming must have been half arsed!   :sorrysign:
Title: Re: Musk launches ARK B
Post by: emjaybee on February 10, 2018, 01:58:09 PM
 :laughabovepost:

I had to think about that for a moment.
Title: Re: Musk launches ARK B
Post by: keithbythe sea on February 10, 2018, 05:47:44 PM
Quote from: emjaybee on February 10, 2018, 01:58:09 PM
:laughabovepost:

I had to think about that for a moment.

Yep, me 2.0  :thumbsup:
Title: Re: Musk launches ARK B
Post by: Snowwolflair on February 10, 2018, 05:59:28 PM
I tried not to think about it.
Title: Re: Musk launches ARK B
Post by: MalcolmInN on February 11, 2018, 02:14:10 AM
Quote from: Snowwolflair on February 10, 2018, 05:59:28 PM
I tried not to think about it.
Yes, indeed so, I should think not, all the above.
I mean, if a little more fuel had been available, who knows where beyond the asteroids it may be headed , uranus maybe,

oh it's getting worser
Title: Re: Musk launches ARK B
Post by: keithbythe sea on February 11, 2018, 07:39:47 AM
Quote from: MalcolmAL on February 11, 2018, 02:14:10 AM
Quote from: Snowwolflair on February 10, 2018, 05:59:28 PM
I tried not to think about it.

oh it's getting worser

Yep, and on that theme. I've been thinking (always dangerous).

Would it be a case of "bye, bye Miss American pi..."  :uneasy:
Title: Re: Musk launches ARK B
Post by: Bealman on February 11, 2018, 07:51:03 AM
The two hillbillies sitting out on the porch, one of them looking through a telescope. The other one asks,

"Can you see Uranus?"

"No, but I can see Mars"
Title: Re: Musk launches ARK B
Post by: daffy on February 19, 2018, 12:11:58 PM
Just in case anybody wants to know the current location of the Roadster, and all sorts of interesting data about speeds, distances and... er.... fuel consumption , here's a link to website that fulfills the need:

http://www.whereisroadster.com/ (http://www.whereisroadster.com/)

The site includes an animated chart and 'view from the Roadsters rear view mirror' (Starman must be doing a space walk) and links to buy 'goodies' like car stickers and a 1/64 model of the Roadster. Wow! ::)
Title: Re: Musk launches ARK B
Post by: Bealman on February 19, 2018, 09:33:23 PM
Just took a look... not bad for just a guy, you know?  ;)
Title: Re: Musk launches ARK B
Post by: daffy on February 19, 2018, 10:19:51 PM
Just to be clear, my 'Wow! ::) refers just the retail stuff, especially the car, which gets poor reviews.
The rest is a good bit of fun and very clever.