a long time and many people find animal testing on ethical researches are now creating a virtual heart model which would help them test new drugs on a computer instead of living beings. the virtual heart is a work in progress at the birthing of pharma companies research center in germany. human heart muscles our retreat from the deep freeze for experiments. scientists here are investigating why they work the way they do and how. they're all timid objective is for animal testing for new medication to be replaced with simulations . after briefly falling out the heart cells start to beat again and how it's been the heart contains many millions of heart muscle cells which are extremely varied those differences are due to the electrical properties of the cell membranes. brown we have to measure those properties in