During Two Scientists Walk Into a Bar, Thinkery sends pairs of scientists out to different bars and restaurants, where the public is invited to ask them questions in an informal, relaxed setting. Visitors can pull up a barstool, have a couple of drinks, and pick the brains of some friendly local scientists. Those scientists will be easy to spot, as they’ll be sitting near a sign that reads "We are scientists. Ask us anything!" The questions are as diverse as the scientists themselves and can range from string theory to meteorites.