what factors affect spatter patterns?

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jacobd740
Posts: 4
Joined: Tue Sep 04, 2007 7:51 am

what factors affect spatter patterns?

Post by jacobd740 »

:arrow: Hello! I am measuring blood spatter. What could I use as something to be hit/the target? :idea: I need something that will hold the fake blood and act almost like flesh over soft tissue.



Thank you :D
Jacob D :mrgreen:
Last edited by jacobd740 on Thu Nov 20, 2008 11:02 am, edited 1 time in total.
Jacob D.
barretttomlinson
Former Expert
Posts: 932
Joined: Wed Oct 03, 2007 12:24 am

Re: wha factors affect spatter patterns?

Post by barretttomlinson »

Hi,

You may find the following site useful:

http://209.85.173.132/search?q=cache:MU ... cd=4&gl=us

Have fun!

Barrett Tomlinson
geoffbruton
Former Expert
Posts: 123
Joined: Mon Aug 29, 2005 10:02 am

Re: wha factors affect spatter patterns?

Post by geoffbruton »

Hi jacobd740,

This is sure to be a fun and interesting project! I would suggest using something like a household sponge. Although the sponge doesn't have 'skin' (like we do), it will mimic a blunt-force blood-shedding event quite well (at least simulating an already bleeding injury). You can also vary your experiment by observing the effect of different volumes of your blood simulant absorbed into the sponge.

If you are interested in trying to create a skin simulant, try and think of something (inexpensive!) that may act like skin and give it a try!

Also, as I am not entirely sure which science fair project you are attempting, I would like to add a quick word of caution: depending on your choice of blood simulant and the method of generating the bloodspatter, please use all suitable and necessary precautions - and check with your project supervisor or teacher before starting.

Good luck!
Geoff.
Geoff Bruton
Firearm & Toolmark Section
Ventura County Sheriff's Department
Forensic Sciences Laboratory
jacobd740
Posts: 4
Joined: Tue Sep 04, 2007 7:51 am

Re: wha factors affect spatter patterns?

Post by jacobd740 »

Thank you for the incite :D

What if i wrapped the sponge in tissue paper?
I would act as more of a surface tensioner.
It would also be moist from absorbing the Blood.

oh and by the way i am using a fake blood recipe involving corn syrup.
I did this to avoid any viruses or other problems.

Jacob d
Thank you :D
Jacob D.
geoffbruton
Former Expert
Posts: 123
Joined: Mon Aug 29, 2005 10:02 am

Re: what factors affect spatter patterns?

Post by geoffbruton »

Hi jacobd740,

Tissue paper would certainly be a great start! Just make sure that the sponge you are using as your target is not saturated with your blood substitute. (This goes back to my suggestion of trying different volumes of your fake blood.)

And thank you for the info regarding what you are planning on using as your "blood"! Please still take care to wear safety goggles and suitable protective clothing when carrying out your experiment - it gets messy :wink:

Please keep us informed of your progress and good luck!
Geoff.
Geoff Bruton
Firearm & Toolmark Section
Ventura County Sheriff's Department
Forensic Sciences Laboratory
jacobd740
Posts: 4
Joined: Tue Sep 04, 2007 7:51 am

Re: what factors affect spatter patterns?

Post by jacobd740 »

Thank you for the input and i agree not to saturate the spuonge.
I will make sure to take verry much percaution thank y
I will keep you informed as i go along.

Thank You All
Jacob D
Jacob D.
jacobd740
Posts: 4
Joined: Tue Sep 04, 2007 7:51 am

what is the viscosity of blood at 37 degrees celsius?

Post by jacobd740 »

Please answer the question above.ASAP :!:

Thank You :D
Jacob D
Jacob D.
davidkallman
Former Expert
Posts: 675
Joined: Thu Feb 03, 2005 3:38 pm

Re: what is the viscosity of blood at 37 degrees celsius?

Post by davidkallman »

Hi jacobd740,

I did the default by inputing "what is the viscosity of blood at 37 degrees celsius" to answers.com.

The second web result: http://www.madsci.org/posts/archives/19 ... .Me.r.html directly answers your question!

Rarely does the web offer such instant gratification!
Cheers!

Dave
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