🚶‍♂️⏱️≠🚀⏱️

#reference frame #observer dependence #special relativity #time measurement #theory of relativity

👀↔️🕰️📐

#frame of reference #observer dependence #relative motion #simultaneity #measurement relativity

🛰️👀⏱️≠🌎👀⏱️

#frame of reference #relative motion #observer dependence #relativity of simultaneity #einstein

↔️🌍🚀=>📜✅

#principle of relativity #frame of reference #laws of physics #inertial frame #non-inertial frame #observer dependence #galileo's relativity