No, there aren't any moving parts in it and the processor is efficient enough that it'll get warm at the most. It still has vents at the hinge like normal MacBooks I assume.
This macbook looks incredible but I'm not sure about the screen size and the lack of usb ports might be a deal breaker. It's gonna be this or an RMBP though
this research kit will be incredible for medical research 
I think that's proof we are getting an iPad Pro with a stylus 
