Science ATCs

I know I'm not the only science-loving-geek here. I'd love to combine my love for art and science, and hope you'll join me. in this swap you'll each create 2 ATCs, with the following themes, and send them to one partner.

• Scientist (a real person, please)
• Equation/ Formula/Diagram (should be real, but I'll settle for anything not yet proven wrong :P

you'll also add a note with a few words about the person and formula you've chosen. it's not homework, so really just a few words.

normal rules apply- no flaking, no sticker slapping. I'll check profiles, so if you know yours might look suspicious and you can explain, do it before I ban. I'll angel if need be, but I'd rather not, naturally.