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Videos tagged with science (516)

Bell Labs Wave Machine: Mismatched Impedance

Bell Labs Wave Machine: Mismatched ...

MIT Department of Physics Technical Services Group

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...

Bell Labs Wave Machine: Standing Waves

Bell Labs Wave Machine: Standing Waves

MIT Department of Physics Technical Services Group

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...

Bell Labs Wave Machine: Superposition

Bell Labs Wave Machine: Superposition

MIT Department of Physics Technical Services Group

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.

Bell Labs Wave Machine: Reflection

Bell Labs Wave Machine: Reflection

MIT Department of Physics Technical Services Group

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...

Richard Samuels

Richard Samuels

MIT Political Science Department

Added 3 years ago | 00:01:06 | 7820 views |

Richard Samuels discusses life at MIT, from PhD student to professor.

Melissa Nobles

Melissa Nobles

MIT Political Science Department

Added 3 years ago | 00:01:41 | 11307 views |

Melissa Nobles discusses her research at MIT.

Barry Posen

Barry Posen

MIT Political Science Department

Added 3 years ago | 00:01:53 | 12026 views |

Barry Posen discusses his current research.

IceWall

IceWall

architecture

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....

Richard Locke - Compliance, Commitment and the Improvement of Labor Conditions of Global Supply Chains

Richard Locke - Compliance, Commitm...

MIT Political Science Department

Added 3 years ago | 00:00:00 | 8944 views |

Richard Locke - BR Ideas Mater Forum

Richard Locke - BR Ideas Mater Forum

MIT Political Science Department

Added 3 years ago | 00:01:52 | 11962 views |

Elongated Microbes Align With Turbulent Flow

Elongated Microbes Align With Turbu...

Civil and Environmental Engineering

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...

"Automatically Programmed Tools" (1959) - Science Reporter TV Series

"Automatically Programmed Tools" (1...

From The Vault

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...