Št. zadetkov: 105
Video in druga učna gradiva
Oznake:
physics;astronomy
We know that some stars exist because we can see them with our own eyes. In this lecture Walter Lewin provides illuminating evidence of stars we cannot see. He describes the birth of stars, in the arms of a nebula, to their explosive or implosive ends. There are super hot white dwarves, detectible o ...
Leto:
2003
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
physics;social sciences;education
The Council on Primary and Secondary Education 2002 summer program hosted 70 pre-college teachers at MIT to attend MIT Physics Professor Walter Lewin's inspired talk about physics. The teachers came from 15 US states and seven countries including Argentina, Austria, Hong Kong, Israel, Lebanon, Norwa ...
Leto:
2002
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
physics
An alternate title for this talk might be “Walter’s World of Waves.” First, Lewin methodically explores how water and sound move in traveling waves. With a pan of water and a tuning fork, Lewin demonstrates concepts of oscillation, amplitude and velocity. He deploys equations for determining wavelen ...
Leto:
2004
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
physics;electromagnetism
The inimitable Walter Lewin gives a literally hair-raising performance in this MIT Museum lecture/demonstration for learners young and old. He unveils the real meaning behind words and things most of us use everyday without reflecting on what marvels they really represent.
Here are some of the myst ...
Leto:
2005
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
physics;electromagnetism
In this lecture taped before a live audience of elementary and middle school students and their families, MIT Physics Professor Walter Lewin explains polarization, and demonstrates properties of light in rainbows, smoke and the sky. He answers the perennial question, "why is the sky blue?" and creat ...
Leto:
2003
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
physics;acoustics;arts;music
Have you ever wondered about the annoying hum your car makes at a certain speed on a particular stretch of highway? Or why a flute’s notes are higher than a trombone’s? Walter Lewin uses rubber hose, wooden boxes with holes, metal plates and an assortment of other home-made instruments to demonstrat ...
Leto:
2003
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
Many of the Walter Lewin Lectures on Physics at MIT have been shown for over six years on UWTV in Seattle, reaching an audience of about four million people. Lewin personally responded to hundreds of e-mail requests that he received per year from UWTV viewers. For fifteen years he was on MIT Cable T ...
Leto:
1999
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
**1. Vectors - Direction Distinguishes Vectors from Scalars**
**2. Decomposition of a Vector:**
A vector can be projected onto three coordinate axes x,y,z, along which lie unit vectors (denoted with roofs). Professor Lewin works an example.
**3. Scalar Product:**
The "dot" product of two vectors ...
Leto:
1999
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
**1. Uniform Circular Motion and Centripetal Acceleration:**
A particle travels in a circle of radius r with constant speed. The period of one rotation is T (sec); the frequency is f (the number of rotations/sec or Hz), omega is the angular velocity (radians/sec), omega=2pi/T, the speed v= omega*r. ...
Leto:
1999
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
**1. Normal and Frictional Forces:**
Starting with a block at rest on a horizontal surface, Professor Lewin describes the normal force, the maximum frictional force that must be overcome to budge the block, and the coefficient of static friction. Once the block is budged and begins to slide, you en ...
Leto:
1999
Vir:
videolectures.net