Wishing someone a happy birthday using a physics language can be a fun and creative way to celebrate their special day. Here's a physics-themed birthday wish you can use:
"Happy quantum leap around the sun! May your birthday be filled with a continuous wave of joy, momentum, and harmonic oscillations. May your year be full of positive charges, exciting adventures, and a fusion of success in all your endeavors. Remember, in the vast universe, you're a unique and fundamental particle, making your presence felt in the grand symphony of life. Here's to celebrating your special day in the spacetime of happiness and relativity!"
Feel free to add or modify the message to make it more personal or to include other physics concepts that the person may find interesting. It's all about making it fun and relevant to their interests!