We don't use the three way ones at all. Virtually all of students get the hang of the removable ones quickly and have more trouble getting good results with the others. Just our experience, of course.
On Thu, Jul 12, 2012 at 10:43 AM, mike wilson <[email protected]> wrote: > On 12/07/2012 03:30, Steven Desjardins wrote: >> >> Of course not by mouth. She used a bulb to fill it beyond the line >> and is slowly releasing it to the right amount. The bulb is designed >> to work when you press it against the pipette and not to be >> permanently attached. > > > I've never got the hang of those rascals. A plain or valved bulb seems to > work best for me. The original pi-pumps were ok, too, but the copies are > just dreadful. > > >> >> On Wed, Jul 11, 2012 at 5:51 PM, mike wilson <[email protected]> >> wrote: >>> >>> On 10/07/2012 23:48, Steven Desjardins wrote: >>>> >>>> >>>> Can't tell if this made it in: >>>> >>>> >>>> >>>> http://drd1135.smugmug.com/Photography/pdml/i-JzZTJhn/0/XL/pipette-1-XL.jpg >>>> >>>> My research student hard at work. Unfortunately, I didn't realize the >>>> Q's flash had gone off (and made shadows) until I opened the file. >>>> The flash will extend up but is still live when tucked it. I've >>>> disabled it now ;-) >>>> >>> >>> Pipetting by mouth? Fail. >>> >>> -- >>> No fixed Adobe >>> >>> >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> >> >> > > > -- > No fixed Adobe > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- Steve Desjardins -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
