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Anthony,
You are making this too tough for yourself. Use small dewars / thermos bottles. You can buy either wide mouth or narrow mouth thermos bottles quite cheaply, and they are perfect for the activity you are doing. See: http://faraday.physics.uiowa.edu/em/ 5F15.10.htm for a glance at my setup.
Later,
Dale
Anthony Lapinski wrote:
Happy holidays everyone!
I want to do a lab activity using a small immersion heater and a beaker of
water. However, our beakers all have the usual sloped tops with a spout.
The clip on the immersion heater is meant for a coffee cup with straight
sides, and does not secure well to the beaker. It will fit on a tall
graduated cylinder, but then it is difficult to mix the water to get a
good temperature readings.
So I am looking for a straight sided beaker (graduated if available) to do
this experiment. I searched unsuccessfully on the interned, but only found
straight sided plastic beakers and jars. Nothing made of glass and
graduated.
Does anybody know of a source/company for what I need? Thanks!