2. My favorite thing from my undergrad classes is quantum mechanics. Paul images at: talklikeaphysicist.com/2008/11/talklikeaphysicist.com/2008/11/

3. Schrödinger Equation

4. Clerk Maxwell discovered that electric and magnetic effects travelled at the velocity of light c – The most important event of the 19 th Century - impacting on all of us

5. My tattoo is of DNA. I was attracted to the attention to detail while also drawing in a representational spiral that doesn’t ignore the basic beauty of the double helix. -Matthew MacDougall, medical student

6. The Heisenberg Uncertainty Principle

7. LSD - what a strange, wonderous, and downright amazing molecule (Anonymous)

9. Nicole, a physics graduate student. My tattoo is the Taylor expansion of sine. I consider it the most beautiful thing I have ever learned. It is one of the most useful things in physics.

11. Lindau 2010

14. Nicole, a physics graduate student. My tattoo is the Taylor expansion of sine. I consider it the most beautiful thing I have ever learned. It has additional meaning to me since sin(x)~x is one of the most useful things in physics.

15. Harry Kroto 2004

16. Here is a picture of my science tattoo, which is the glycolipid membrane anchor precursor I discovered as a graduate student

17. Harry Kroto 2004

18. Maxwell’s EquationsMaxwell’s Equations - it’s hard to get a shot of all four at once - it’s hard to get my arm in the right position for any camera to get Ampere’s circuital law.” Weldon Ampere’s circuital law

19. Harry Kroto 2004 image at: www.tattoosymbol.com/.../visitor_archive4.htmlwww.tattoosymbol.com/.../visitor_archive4.html

20. Harry Kroto 2004 An anonymous reader writes, "D-lysergic acid diethlyamide…what a strange, wonderous, and downright amazing molecule. Having a background in biology, biochemistry, and molecular biology, I have long been fascinated by this enigmatic chemical. I initially planned on getting the regular simple stick molecular structure, and sat on that idea for close to 7 years... Click here to read the rest of the description. Click here to read the rest of the description

21. Harry Kroto 2004 Weldon writes, “I doubt I’m the only one with this, but Maxwell’s Equations in differential form on my arm. Unfortunately it’s hard to get any shot of all four at once (given the curvature) and it’s hard to get my arm in the right position for any camera to get Ampere’s circuital law.” Weldon Maxwell’s Equations Ampere’s circuital law

22. Harry Kroto 2004 A biochemist writes: “Here is a picture of my science tattoo, which is a stylized structure of glycolipid A, the preformed glycolipid membrane anchor precursor I discovered as a graduate student some 20 years ago.

23. Harry Kroto 2004 http://flickr.com/photos/cpurrin1/3237551156/

25. Harry Kroto 2004 Here is my serotonin tattoo - it's my favorite neurotransmitter.--Hayley