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Will it centrifuge? Answered

I have recently obtained a desk-top centrifuge which has yet to be used. It takes tubes with a volume of 1.5ml, and subjects them to accelerations of up to 8500 gravities (by comparison, most theme park rides top out at 5 gravities).

So - what should I put in it?

I plan to collect ideas and then spend an evening or a weekend in the shed...

Edit:
First results are in.
Blood!
The Club Edition

Discussions

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nfitz
nfitz

11 years ago

You sure it was doing 13k rpm? Your PSU @ 12v gave 1A = 12w lol
Wire that beast up to a high wattage ATX PSU or a car battery...then it'll spin :)

You could always go for broke and 24v it :):)

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Kiteman
Kiteman

Reply 11 years ago

If you check the links, one of the slides shows the centrifuge's specifications, including rpm vs voltage. There is very little weight in the rotor, and the bearings are very smooth.

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rightbraincreative
rightbraincreative

11 years ago

Thank you for this great instructable. In my years of acquiring the odd and bizarre, I do happen to have a centrifuge. Other than blood, I couldn't think of anything else to do with it. Thanks for the ideas and please, other readers, contribute more ideas on uses for a centrifuge.

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Kiteman
Kiteman

Reply 11 years ago

Thanks! Don't forget to post your results.

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Rishnai
Rishnai

11 years ago

I reccommend gasoline and, if y'all have it over there in the UK, E85. Spit. I'd like to see spit centrifuged. And I have a question (I know, I'm impossible this time of the morning): what sort of RPM does that centrifuge achieve?

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Rishnai
Rishnai

Reply 11 years ago

Oooh, fun. That means I could build one with an old router. Mwahahahahahaha!

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Kiteman
Kiteman

Reply 11 years ago

You'd better hurry - at least two other members claim to be putting a centrifuge Instructable together.

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M F
M F

Reply 11 years ago

what's up with you guys?
I am still waiting for an instable. somebody please make a centrifuge.
I have three other projects going so I don't have the time to experiment. I also got 30 Lithium Ion battery packs. what to do, what to do. maybe the folding electric bicycle?
http://www.evalbum.com/609

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bumpus
bumpus

Reply 11 years ago

Instructable*

hehe, its the devil inside me :D

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Kiteman
Kiteman

Reply 11 years ago

Ahem:

Hehe, it's the devil inside me.

;-)

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bumpus
bumpus

Reply 11 years ago

Yep

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Rishnai
Rishnai

Reply 11 years ago

I was working on one, but was struck by a bolt of common sense. Spinning a home-machined steel drum about at 20,000 rpm seemed like it might do a little damage... to my favorite router, not myself. Anyone have any tips for machining with precision when one's only machine tools are thridhand at best and homemade in the middle of the night at worst?

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Kiteman
Kiteman

Reply 11 years ago

Check with killerjackalope, see how far he's got.

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Kiteman
Kiteman

Reply 11 years ago

Oh, and it's only 2:21am on the West Coast - It's eight hours later in the UK, I've had a lay-in and I'm off shopping in a few minutes.

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NachoMahma
NachoMahma

11 years ago

. I think I'd try separating a petroleum product. See how many different components you can separate from, for instance, 3-In-One oil. Or anything else made of liquids with slightly different weights.
. Blood or other body fluids.

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Goodhart
Goodhart

Reply 11 years ago

. Blood or other body fluids.

That could give the youngin's of his household or his class something to embarrass him with ;-) (under the microscope)...look those little cells have tails, why is that? What it their purpose? *grin*

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Kiteman
Kiteman

11 years ago

Right, I got fed up waiting for responses from manufacturers, so I went ahead and published an 'ible anyway.

Enjoy

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Goodhart
Goodhart

11 years ago

Do we know if the "sediment" in the lamb's blood was some of the red blood cells or maybe some micro-clotting because if the age of the blood, or maybe some other contaminate?

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Kiteman
Kiteman

Reply 11 years ago

Apparently I over-spun the blood, and the cells broke up - maybe it was the "shells" (membranes) of the red blood cells?

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Goodhart
Goodhart

Reply 11 years ago

collapsed the cells did you ? :-)
At least we will know what happens to our blood if we are ever placed under 8500 gravities ;-)

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Kiteman
Kiteman

Reply 11 years ago

Bang go any plans of holidaying on a neutron star!

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dsman195276
dsman195276

Reply 11 years ago

lol. In science my teacher told me that one TSP of the matter of a neutron star would weigh over 1,000,000,000 tons( It might have been 1,000,000 but anyway its a lot) What about a black hole? How much gravity does that have anyway? I know it has enough to kill me but exactly how much is that? lol, you should try putting a swab of your cheek cells in there, who know what would happen. And Jello, as Jello can change it shape and then form back, i just wonder if it would make it something like liquid.

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Goodhart
Goodhart

Reply 11 years ago

I bet jello would "go liquid" in there. :-)

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dsman195276
dsman195276

Reply 11 years ago

who knows.

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Goodhart
Goodhart

Reply 11 years ago

Well, Kiteman might find out if he sees this :-)

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dsman195276
dsman195276

Reply 11 years ago

O he will see this, i promises!

Kiteman look here, read the last comments on new stuff to test!!!!!!!!!!

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Kiteman
Kiteman

Reply 11 years ago

> ears ringing < Alright, already. ~~Jello~~ Jelly, added to the list.

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dsman195276
dsman195276

Reply 11 years ago

cool! and what about the swab of cheek cells? i wonder what would happen to them. though you would have to take the picture through a microscope just to see it. and a marshmallow! that would be cool!

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Goodhart
Goodhart

Reply 11 years ago

Hmm, too bad there isn't an easy way to add a little "weight" to the "inside edge|" of the marshmallow......one might end up with marshmallow paper....LOL

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dsman195276
dsman195276

Reply 11 years ago

true... hmm... well i am out of ideas.

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dsman195276
dsman195276

Reply 11 years ago

i hope!

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Goodhart
Goodhart

Reply 11 years ago

...where you could do the Neutron Dance, eh? :-)

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iman
iman

11 years ago

A fly, bee,worm,or spider would be cool to see :P

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Kiteman
Kiteman

Reply 11 years ago

That would be, in principal, cruel.

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PKM
PKM

Reply 11 years ago

*shocked gasp*

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Kiteman
Kiteman

Reply 11 years ago

What?

I'm not against killing vermin, I am against killing them in a potentially slow and needlessly painful way. Yes, I know they're "only" insects, but I try and have respect for all living things, as an example to my children and my students. It is but a few short steps from "it's only a fly" to "it's only a dog" and then "it's only a >insert minority group<".

In fact, atheist though I am, I rather like the old druid credo; Do what thou wilt, an it harm none.

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PKM
PKM

Reply 11 years ago

I meant you spelt principle "principal"

Probably should have made that clear

Sorry

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Kiteman
Kiteman

Reply 11 years ago

Oh

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iman
iman

Reply 11 years ago

not if it is a dead housefly or moth ect

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Kiteman
Kiteman

Reply 11 years ago

I never thought of that - I'll keep my eyes open.

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zachninme
zachninme

11 years ago

Wow! That's a lot of g's!!! I read the title and wondered if you could make a DIY centerfuge by swinging a testube around on a +1m string -- but that number makes me think differently...

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xACIDITYx
xACIDITYx

Reply 11 years ago

Would it be even remotely possible to achieve those G's with a fairly large DC motor?

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Kiteman
Kiteman

Reply 11 years ago

My centrifuge is DC.

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Goodhart
Goodhart

Reply 11 years ago

yes but how long can it be or need it be sustained for any desired results? Very think things like peanut butter might take a bit of time. Or not do anything at all if the densities are similar enough. Just because one is a liquid (the oils) and the other portion if solid doesn't mean they will separate under increased gravitational forces.

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killerjackalope
killerjackalope

Reply 11 years ago

Got that front covered zach, expect results soon enough...

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PKM
PKM

11 years ago

Ooooo... lemme ask my friend who works at the blood labs at RD&E, he likes this sort of idea. Food items are clearly going to provide a lot of entertainment value- I'd suggest something homogeneous made of dairy, like yoghurt, cream, butter, mayonnaise or custard. An investigation of what unspeakable solid horrors come out of milk substitutes like alpro, "Oat supreme" or "Rice dream" would probably put me off said milk substitutes for life. Perhaps a suspension of solid in liquid- you could investigate its effectiveness at separating biscuit crumbs from tea :) Thinking of biscuits, if you can find a suitably pliable sort of flapjack that could be interesting, if it flowed to take up the shape of the phial. Foodstuffs that separate slightly anyway into oily and non-oily could be enlightening, perhaps korma sauce? I'd also be fascinated to see what happens to jelly and ice cream together... and finally, just for wordplay value, perhaps some yellow cake?

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Goodhart
Goodhart

Reply 11 years ago

OOH yes, you could separate cream out of goats milk with that thing (it is hard to do even with a normal separator). Make your own cheese :-)