Last week, I used DC’s subway/underground train system, called the Metro, to get downtown. While I was waiting around the Medical Center station, which is located next to the NIH and my house, I saw this advertisement. Seriously, it warmed my heart. An advertisement for Western blotting in a Metro station! (By the way, a Western blot analysis is a biological technique that helps you detect a protein and get information about it.) If anyone has seen a more nerdy/cute billboard, I’d like to hear about it. Until then, I’ll consider this one to be the best.