A NASA spacecraft is traveling to the most mysterious asteroids in the solar system. On the way there, it snapped images of the curious, elongated asteroid dubbed "Donaldjohanson." On April 20 ...

making it the anthem of our unifying movement (sing it out loud with Pete below). Step by Step the longest march, can be won, can be won. Many stone can form an arch, singly none, singly none.

Understand the different failure modes of under-reinforced and over-reinforced concrete beams. • Understand the elastic and plastic moment capacities of steel beams.

Understand the different failure modes of under-reinforced and over-reinforced concrete beams. • Understand the elastic and plastic moment capacities of steel beams.