INTL 3:770/1 3:770/3
REPLYADDR ldo@nz.invalid
REPLYTO 3:770/3.0 UUCP
MSGID: 578d4ea9
REPLY: <20240824085612.f7d8780533d0d9af11298e16@eircom.net> 935a1d1a
PID: SoupGate-Win32 v1.05
XPost: sci.electronics.design
On Sat, 24 Aug 2024 08:56:12 +0100, Ahem A Rivet's Shot wrote:
> Hohmann worked out the details of travel around the solar system
> using the computing power in his head and the storage afforded by a
> pencil and paper. The computing requirements for space travel are not
> that large.
He was only able to come up with “minimum energy” transfer orbits that
went fairly directly from body A to body B. Since then, we have worked out
more complicated low-energy “slingshot” orbits that involve bouncing
around the Solar System to match velocities with difficult-to-reach target
bodies like comets. That required real computing power: there’s no way
anybody could have worked that out with pencil and paper, even with a
slide rule.
And what about “halo” orbits, like at Earth-Moon L2, where the Chinese put
their relay station for maintaining contact with their far-side rover, and
where the James Webb telescope is located? You think you could work out
the right numbers for those without a modern digital electronic computer?
They’re not even properly stable, for a start.
> Boeing are busy acquiring a reputation of careless engineering.
True, that. But are they too big to be allowed to fail?
--- SoupGate-Win32 v1.05
* Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
SEEN-BY: 10/0 1 90/1 103/705 105/81 106/201 124/5016 129/305 153/757
SEEN-BY: 153/7715 218/0 1 601 700 840 870 930 220/70 221/1 6 360 226/17
SEEN-BY: 226/30 100 227/114 229/110 111 114 200 206 300 317 400 426
SEEN-BY: 229/428 470 550 616 664 700 240/1120 266/512 267/800 282/1038
SEEN-BY: 291/111 292/854 301/1 113 812 310/31 320/219 322/757 335/364
SEEN-BY: 341/66 342/200 396/45 460/58 633/280 712/848 770/1 3 100
SEEN-BY: 770/330 340 772/210 220 230 5020/400 1042 5058/104 5075/35
PATH: 770/3 1 218/840 221/6 301/1 218/700 229/426
|
