Topics Interference Double Slit Diffraction Waves Description Make waves with a dripping faucet, audio speaker, or laser! Add a second source to create an interference pattern. Put up a barrier to explore single-slit diffraction and double-slit interference. Experiment with diffraction through elliptical, rectangular, or irregular apertures. Sample Learning Goals Make waves with water, sound, and light and see how they are related. Design an experiment to measure the speed of the wave. Create an interference pattern with two sources, and determine the ways to change the pattern. Find points of constructive and destructive interference by eye and by using the detectors. Put up a barrier to see how the waves move through one or two slits. What sort of pattern do the slits create? How can you change this pattern? For light, predict the locations of the fringes that appear on the screen using d sin(ΞΈ) = mΞ». Use the tape measure to verify your predictions. Explain how the aperture geo...
Why liminal spaces are uncertain and ambiguous and promote a feeling of communitas amongst the people who occupy these spaces. Posted by Sikhanyisiwe Mkhonto We are constantly moving from one space to another. These are often large socially constructed spaces that create meanings or serve a function in our society. There are however spaces where we are neither in nor out. This space is the centre of two large spaces. A small space where one feels connected with the fellow members who are occupying that small space in that moment (Shortt, 2015: 634). Turner investigated the works of Arnold Van Gepp who spoke of the concept of ‘rite de passage.’ Victor Turner’s focus was the liminal period of a ritual. ‘Liminality is ambiguous, this is because the individual is not being classified into any category which confirms their role in a cultural society’ (Turner, 1969: 95). In this liminal period members involved experience a sense of harmony, this is what Turner labels as communit...
Topics Gravitational Force Circular Motion Astronomy Description Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it! Sample Learning Goals Describe the relationship between the Sun, Earth, Moon and space station, including orbits and positions Describe the size and distance between the Sun, Earth, Moon and space station Explain how gravity controls the motion of our solar system Identify the variables that affect the strength of gravity Predict how motion would change if gravity was stronger or weaker
Unitut lite is a small/convenient app from unitut, it focuses more on the core features of unitut. It is primarily made to be used when users are specifically looking for a small sized app with better performance and offline support. It is still under development but expected to be released late this year.
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