Actually... Are you kidding me, Jim? A whopping 1 mm??? Hmm... I think that this would be more like a tenth, or two, of that!
In other words, 2 tym, tops (where ty = 10^-4 ;-) ). I seriously doubt someone would bleed a liter on a square meter surface. Two hundred mils, tops, would be much more like it. Marcus On Wed, 22 Oct 2003 15:16:22 James R. Frysinger wrote: >You're right, of course. In fact, the specs call for a unit to fall within a >certain range of masses as I recall. Density then affects the volumn. > >But my point had to do with a 20 year old student's comprehension of a pint >and a quart versus her comprehension of a liter. The blood was there merely >to get the conversation started. > >By the way, I took the opportunity in class to point out that a puddle >covering a square meter at a depth of 1 mm contains a liter. THAT got >everyone's attention and even the instructor counted out the floor tiles to >get a feel for that. A depth of 1 mm is probably not too bad an estimate of >the depth of a pool of blood on a tile floor, I would think. > >Jim > >On Wednesday, 2003 October 22 13:22, Terry Simpson wrote: >> James R. Frysinger wrote: >> >he mentioned a "unit of blood" stating that it was roughly a pint or half >> >> of a quart. >> >> The amount in a unit is very variable because of how it is collected. >> >> See the sizes of bags come in rational metric sizes, at least for the >> following supplier (I suspect that they all do): >> www.baxterfenwal.com/jsp/products/wholeBloodFamily.jsp >> >> "a unit of blood (about 400 to 500 ml" >> http://clinicalstudies.info.nih.gov/detail/A_1999-CC-0168.html >> >> "one unit of blood (450-500 ml)" >> www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=113 >>1 1689&dopt=Abstract >> >> "unit of donated blood (450 mL)" >> www.cdc.gov/ncidod/eid/vol8no8/02-0025.htm >> >> >> >> There is a difference between units collected and units delivered (because >> treatments reduce the volume). >> http://blood-bank.egypt.com/professionals.html > >-- > >James R. Frysinger >Lifetime Certified Advanced Metrication Specialist >Senior Member, IEEE > >http://www.cofc.edu/~frysingj >[EMAIL PROTECTED] >[EMAIL PROTECTED] > >Office: > Physics Lab Manager, Lecturer > Dept. of Physics and Astronomy > University/College of Charleston > 66 George Street > Charleston, SC 29424 > 843.953.7644 (phone) > 843.953.4824 (FAX) > >Home: > 10 Captiva Row > Charleston, SC 29407 > 843.225.0805 > > ____________________________________________________________ Get 25MB of email storage with Lycos Mail Plus! Sign up today -- http://www.mail.lycos.com/brandPage.shtml?pageId=plus
