Imagine you’re going on holiday and your suitcase is packed full. So full, in fact, that it won’t close. You could apply more force, kneeling on the case and tugging harder on the zipper until it shuts. But what if the things in the suitcase actually got smaller?
Have a heart
Building a complex machine is a tricky job, taking expert skill and teamwork. And by studying the molecular ‘workers’ in our cells, researchers are starting to understand how a complex biological machine – the heart – is built as a fetus develops in the womb.