Added 3 years ago | 00:01:24 | 11631 views
Two segments of the Bell Labs apparatus are connected. The segments have different impedance. When a pulse travels from high impedance to low impedance, it is reflected with positive polarity and transmitted with positive polarity. Wh...
Added 3 years ago | 00:01:16 | 14162 views
Standing waves are created on the Bell Labs apparatus. The apparatus is "open" at both ends, therefore the number of nodes is equal to the number of overtones. For example, the fourth harmonic will have four nodes, the fifth harmonic w...
Added 3 years ago | 00:00:34 | 10903 views
A single pulse creates two waves of one-half amplitude. When the waves pass each other they add constructively to create the original pulse.
Added 3 years ago | 00:01:00 | 14953 views
Pulses are created on the Bell Labs apparatus and reflections from the opposite end are observed. Initially, the ends of the apparatus are left open and the reflections have positive polarity. When one end is fixed, reflections have ne...
Added 3 years ago | 00:01:00 | 17218 views
MIT 150 celebrates past innovation and achievement, while acting as a catalyst for the next generation. In this spirit, IceWall plants a new future, even as its own seemingly fades away during the Festival of Art, Science and Technology....
Added 3 years ago | 00:00:34 | 8235 views
This is a culture flask being shaken in front of a video camera. The dark whorls are actually light backscattering off elongated microbes locally aligned with the turbulent flow. Video / Marcos, Seymour, Luhar, Durham, Mitchell, Macke an...
Added 3 years ago | 00:29:09 | 18811 views |
In this 1959 MIT Science Reporter television program, researchers John Francis Reintjes and Douglas Taylor Ross present the APT project, a novel system for the computerization of numerical control being developed at the new MIT Electroni...
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