Model Prison Architecture
Williamsburg's jail, or gaol, set the standard for colonial prison architecture. Visit the building this year as we celebrate the 75th anniversary of its reconstruction. Architectural historian Carl Lounsbury describes the structure.Author(s):
Op het einde van deze les kun je inhoudelijke vragen beantwoorden na het beluisteren van een fragment over de Blitz tijdens WO II in Groot-Brittannië.
Math Magic Using Dice
Amaze your friends with some math magic. Have a friend roll the dice and then stack them one on top of the other. Predict the total of the five hidden numbers.
Kinetic and Potential Energy of Atoms
Kinetic and potential energy of atoms result from the motion of electrons. When electrons are excited they move to a higher energy orbital farther away from the atom. The further the orbital is from the nucleus, the higher the potential energy of an electron at that energy level. When the electron returns to a low energy state, it releases the potential energy in the form of kinetic energy. (02:25)
Tempo and mode in macroevolution Fall 2007
General Biology - Fall 2007. This is a general introduction to plant development, form, and function; population genetics, ecology, and evolution. Intended for students majoring in the biological sciences, but open to all qualified students. In general at the end of Biology 1B students will be able to: describe the scientific method and explain how it would be applied to a novel problem; explain the consequences of random variation when extrapolated over time; distinguish between positive and