What makes a glow stick glow?
What causes a material to be magnetic?
Do all objects fall at the same rate, regardless of weight or size?
New Milford (N.J.) High School students explain how they used MIT OpenCourseWare to learn how to code and create games.
We take two tanks (of diameter roughly 50 cm) and place one on a rotating table and the other on a desk. We fill them with water to a depth of 20 cm or so, and set the rotating table turning anticlockwise (looking down from the top) at a speed of order 10 rpm ...
The Taylor-Proudman theorem demands that vertical columns of fluid move along contours of constant fluid depth. Suppose a rotating, homogeneous fluid flows over a bump on a bottom boundary.
It is straightforward to obtain a steady, axially-symmetric circulation driven by radial temperature gradients in our laboratory tank, which provides an ideal opportunity to study the thermal wind relation.
We bring the cylindrical tank, filled to a depth of 10 cm or so with water at a uniform temperature, up to solid-body rotation at a speed of 5 rpm, say. We sprinkle a few small crystals of potassium permanganate in to the tank. Note the Taylor columns. Now we reduce ...
Here we study the mechanism by which the wind stress drives ocean circulation. We induce circulation by rotating a disc at the surface of a tank of water which is itself rotating. The laboratory setup is as follows.
We can study convection in a laboratory setting. A stable stratification can be set up in a 50cm square tank by slowly filling it up with water whose temperature is slowly increased with time. This is done using (i) a mixer that mixes hot and cold water together and ...
Everyone is familiar with the swirl and gurgling sound of water flowing down a drain. In this laboratory experiment we explore this problem quantitatively, and draw out the strong parallels between it and the large scale flow in the atmosphere and ocean. We rotate a ...
We place a large tank on our rotating table and fill it with water to a depth of 10 cm or so. We then take a hollow metal cylinder, generously rub petroleum jelly around its lower rim, and place it in the center of the tank so that it protrudes slightly above the ...
The Coriolis force can be visualized by making use of the parabolic surface constructed in Lab IV. If a ball, initially at rest in the rotating frame, is given a push, it is deflected to the right.
It is relatively straightforward to demonstrate the essential mechanism behind wind-driven ocean circulation in a laboratory experiment.
Here we illustrate the dynamical principles that underlie the abyssal circulation of the ocean, driven by the sinking of dense fluid formed by surface cooling at polar latitudes.
Description: This lecture starts with how to define useful subproblems for strings or sequences, and then looks at parenthesization, edit distance, and the knapsack problem. The lecture ends with a brief discussion of pseudopolynomial time. Instructor: Erik Demaine
Description: This lecture covers open addressing, which is another approach to dealing with collisions (hashing with chaining was covered in Lecture 8). Cryptographic hashing is also introduced. Instructor: Srini Devadas