Gallery, Projects and General > Project Logs
Earth and Moon
AdeV:
--- Quote from: BillTodd on May 07, 2019, 02:18:18 PM ---I've been wanting to put together a scale solar system for a few years now. .... It'll take the whole length of the park plus most of the length of the school road to fit in all the planets if I use the 300mm ball as the sun.
--- End quote ---
Hmm.. slight issue there: If the Sun is represented as a 300mm ball, then the Earth (if it's to scale...) will be a 3mm ball :bugeye:
I suppose the advantage is, you can probably buy one off the shelf :lol:
BillTodd:
--- Quote from: AdeV on May 13, 2019, 12:53:43 PM ---
--- Quote from: BillTodd on May 07, 2019, 02:18:18 PM ---I've been wanting to put together a scale solar system for a few years now. .... It'll take the whole length of the park plus most of the length of the school road to fit in all the planets if I use the 300mm ball as the sun.
--- End quote ---
Hmm.. slight issue there: If the Sun is represented as a 300mm ball, then the Earth (if it's to scale...) will be a 3mm ball :bugeye:
I suppose the advantage is, you can probably buy one off the shelf :lol:
--- End quote ---
Yes (smaller actually) but that's the point one can grasp the relative sizes quite easily but the distances between things is mind boggling!
Once you've got in your head the scale of the solar system and the fact that the earth is a tiny bit of dust orbiting a tiny star - there are stars out there that are larger than the whole solar system - the red-ish colour one top left in the orion constellation for example - you can really start to imagine the scale of the universe .
"let's hope there's intelligent life
somewhere out in space ..
'cos theres bugger all down 'ere on earth" (monty python)
AdeV:
Comedy AND intelligence - you have to hand it to the Pythons - they were capable of incredible stupidity, but also breathtaking genius - and all of it whilst making you laugh your arse off...
mattinker:
--- Quote from: BillTodd on May 12, 2019, 09:38:54 AM ---Solved the chatter problem with a piece of ground and honed high speed steel . Then lashed-up a 'power feed' for the rotary table 'cos it was difficult to turn slow and consistently.
The result was better than expected, so i couldn't resist applying some grey scotchbrite, elbow grease and T-Cut ...
I'll leave it on the machine for the moment while i work out how to mount it and what to do with the south-pole.
--- End quote ---
I really like your ball turner! Will definitely use that idea!!
Regards, Matthew
BillTodd:
Knocked up a quick stand - or would have been quick had it not been too long for the lathe
Looks all nice and shiny, much better than the earth , so might have to take a power mop to the globe .
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