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At 11:40 PM 5/30/2008, you wrote:CUT
Several years ago I invented a physics lab where my students figured out
the
size of the hole inside a hypodermic needle.
Has anyone else tried something like this? Do you think this is a good
lab
or not? Is needle safety¹ too big a worry for you? Is there a good way
to
lessen the hazard of getting stabbed?
Steve Highland
Duluth, MN
It's the second stick that is the greater risk. Briefing the class to
turn in a
sharp that has nicked any skin at all, just once, for a replacement
would be one
hygiene measure.
Brian Whatcott Altus OK Eureka!
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