Using portable sensors we characterize the airborne particles to which dwellers are exposed during their daily activities at ground level.
A study of cephalopods, like the squid and the octopus, shows that they
have developed an ultra-fast escape mechanism based on first inflating
and then deflating their shape while using the expelled water as a
propelling jet. The mechanisms that allow control of the drag forces
and flow energy recovery can be used to propel a shape-changing vehicle
to match the performance of cephalopods.