Re: Airlocks are for losers
I'm not sure how. Temperature is an absolute scale, in the sense that you can tell the heat content of things by the black-body radiation they give off. Energy flow by conduction scales as temperature difference and by contact area, so the only way heat flow would kill you is if you got a good, full-body contact with something really hot or really cold. I admit you can burn yourself fatally with fairly modest temperature differences (scalding sets in fast, e.g.), though.
Electrical potentials are another thing. In principle you could have substantial electric charges built up on objects in space, and grabbing a nice metal hull which happens to have a big charge on it might be lethal. I'd have to look stuff up and push numbers around to decide whether that was a serious concern, but the experiences of human space efforts so far suggest it isn't. Otherwise there'd be something more made of docking with ISS, for example, and bleeding off charge and electrical potential differences early in the docking process.