How to become Spiderman?

Being able to climb walls would be fun, wouldn’t it? Unfortunately, mother nature – a.k.a. evolution – successfully prevents us humans to do so. Thinking of small animals like geckos and spiders, their gamechanging advantage over humans is that they are able to create a comparably large contact area between their body and the wall. If humans had to do so, it would be equal to having shoe size 72 (something like 50 cm long feet). Not really suitable in everyday life, right? Thanks to science, there is a solution to that: Shoes equipped with carbon nanotubes! As proven by the US military, humans can become Spiderman – or at least something close to that.