I loved the format of a number of short talks that provided succinct and to the point concepts. I really prefer this to very indepth talks on just one subject. I learn what I don't know whereas with one topic I would only participate if I was already interested in the topic.
In the Lab Series: Gram Stain Process
The 'In the Lab' series demonstrates basic laboratory techniques performed at a public health laboratory. In this video, the laboratorian demonstrates how to perform a gram stain to differentiate bacteria.