What is the difference between fire alarm pull stations and fire alarm call points?
Glass reflector studs, installed during construction to show the boundary of the street.
I wish someone would give me a fire extinguisher for a gift! That's practical and you can never be too safe!
I think the only relative velocites that are important to recognize lay within the acceleration framework of an individual craft in specific circumstances. If a craft is traveling at 5000 MPH then increases to 45,000 MPH, the 45,000 is relative to the original 5000 MPH, as well as the intermediate speeds leading eventually to 45,000 MPH. The gradual compounding of velocities can continue, each velocity building upon the last as long as acceleration continues. This is objective, but only according to what the object experiences as pressure.
