Let's make this birthday one to remember.

91 years old (Born on June 06, 1933)

Happy Birthday, Heinrich! Celebrating another year of tunneling through life's mysteries with precision—just like your iconic scanning tunneling microscope. Your Nobel-winning discovery still makes electrons blush and atoms pose for portraits.

From leading IBM's physics lab to pioneering breakthroughs alongside Gerd Binnig, you've turned microscopic observation into macroscopic admiration. We hope today you enjoy zooming in on cake slices and celebrating bigger successes than ever. May the joy you brought science multiply faster than atomic particles under scrutiny—and remember: age is just a quantum state; you're always measured as timelessly brilliant!

Cheers to many more discoveries (and birthdays) ahead!