But to understand the punch lines, you may need to know the definition of Na. (Bigstock)
Geek wit
A scientist walks into a bar . . .
Science jokes from Popular Science online

Who says geeks aren’t witty? Everybody, but never mind. Popsci.com, the online publication of Popular Science magazine, asked its Twitter followers last week to submit their favorite science jokes. Here are some of the ones they thought were best:

Physics. Atom 1: “I think I’ve lost an electron.” Atom 2: “Are you sure?” Atom 1: “Yeah, I’m positive.” @peterslade

Chemistry. I was going to tell a joke about sodium, but Na. @IanHaygreen

More chemistry. Two scientists walk into a bar. “I’ll have an H2O,” says the first. “I’ll have an H2O, too,” says the second. The second man dies. @Scitidbits

Math. Why did the chicken cross the Möbius strip? To get to the same side! @c_forrester2

The dorkiest science joke ever. Don’t trust atoms . . . they make up everything. @SmellyLisa

If we have to tell you that Na is the symbol for sodium, and H2O2 is hydrogen peroxide, you fail the geek test. No word on your sense of humor.