Video by Sarah Joseph and Jon Betz, Smithsonian Digital Studio; Text by Megan Gambino Benjamin Franklin invented swim flippers when he was 12 years old. Frank Epperson, age 11, conceived of the ...

This course presents the fundamental principles of structural analysis, determination of reactions, internal forces and deflections under the static load conditions. The course is mainly focused to ...

The apartments would be for people making between 50% and 70% of the area median income.

The cosmological constant has been a problem in physics since Einstein, but new research may show why it takes the value that ...