|
|
|
|
|
 |
In this lecture, Professor Leonard Susskind of the Stanford University Physic's Department discusses dark energy, the tendency of it to tear atoms apart, atoms apart, and Gauss's Law. (1:47:37)
Einstein's Theory (PHY 27) discusses the different applications of Einstein's Theory of Relativity in particle physics, including Newtonian, Galilean, and Guassian laws; particle attraction and repulsion; gravitational fields; and dark energy.
Found by teresahopson in Relativity
August 10, 2012 at 03:36 PM
Ages: 15 - 18
License: CC by-nc-nd
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3553 |
|
|
| |
|
|
|
|
|
 |
The slipperiest stuff known to man, Teflon has made a tremendous impact on the world. Invented by accident in 1938, it has gone on to become a substance in all kinds of household items. Created by mistake, PTFE (poly-tetra-fluoro-ethylene) is a long chain carbon polymer surrounded by fluoride atoms. The fluoride atoms fully enclose the carbon chain so that it can't react with other molecules. It wasn't until 1944 that the name "Teflon" became trademarked. Dr. Kiki gives us the skinny in this episode of Food Science.Run time 03:31.
Found by begamatt in Polymers
June 14, 2010 at 02:15 PM
Ages: 12 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3406 |
|
|
| |
|
|
|
|
|
|
In this interactive activity from ChemThink, learn about solids, liquids, and gases at an atomic level. Investigate how the behavior and interaction of atoms and molecules account for the states of matter. Important terms such as elements, molecules, compounds, and mixtures are also reviewed.
Found by Mrs Jefferies in Atomic Theory
May 18, 2012 at 11:03 PM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3405 |
|
|
| |
|
|
|
|
|
|
"Organic chemistry is just carbon chemistry where carbon is the principal atom." The instructor, 'Chemguy', reviews the various diagrams in organic chemistry. This video is suitable for high school chemistry students. (04:06)
Found by teresahopson in ChemGuy's Organic Chemistry Series, 1-9
January 7, 2010 at 12:58 AM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3365 |
|
|
| |
|
|
|
|
|
|
This four-minute video shows the National Ignition Facility, where an enormous 192-beam laser bay may become capable of fusing hydrogen atoms into helium - creating an endless, clean source of energy. Excellent graphics help students understand how lasers and astro phyics work. (04:35)
Found by freealan in Particles
September 25, 2010 at 10:53 AM
Ages: 12 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3353 |
|
|
| |
|
|
|
|
|
|
From honey bees to cells, virus, and atoms -- understanding the scale of the very small. He uses computer software for instruction. (13:14)
Found by teresahopson in Khan Lectures - Cosmology
May 20, 2011 at 09:17 PM
Ages: 12 - 18
License: CC by-nc-nd
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3245 |
|
|
| |
|
|
|
|
|
|
Even before the crisis of the atom, there was evidence that light, which was certainly a wave, could sometimes act like a particle. In the new physics, called quantum mechanics, not only does light come in quanta called photons, but electrons and other particles also interfere like waves.
Found by laneyk in Quantum Mechanics
March 24, 2010 at 04:50 PM
Ages: 14 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3208 |
|
|
| |
|
|
|
|
|
|
In this archival footage from BBC TV, celebrated physicist Richard Feynman explains what fire, magnets, rubber bands (and more) are like at the scale of the jiggling atoms they're made of. This accessible, enchanting conversation in physics reveals a teeming nano-world that's just plain fun to imagine. Run time 07:06.
Found by begamatt in Physics
July 12, 2010 at 08:03 PM
Ages: 14 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3170 |
|
|
| |
|
|
|
|
|
|
In the 1920s, the behavior of atoms developed into a new theory called quantum mechanics. Since then, physicists have learned much more about the subatomic world. and created a new theory called
quantum mechanics. Since then, physicists have learned much more about the subatomic world. There are lots of uses for this and the video does a quick overview to help students understand how this science evolved. The video may needed to be stopped at times as there are many terms that may need more explanation.
Found by freealan in Quantum Mechanics
June 12, 2011 at 12:24 PM
Ages: 10 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3162 |
|
|
| |
|
|
|
|
|
|
Orbitals are where electrons are most likely found inside an atom. and the topic of this 13:37 long video. When energy is increased, orbitals tend to be further from the nucleus of the atom which makes it easier for valence electrons to bond with other atoms. The video uses a smart board and narrator.
Found by freealan in Atomic Theory
June 10, 2011 at 11:43 AM
Ages: 12 - 18
License: CC by-nc-nd
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3149 |
|
|
| |
|
|
The Mole
From learner.org, produced by University of Maryland
|
|
|
|
|
|
Using Avogadro's law, the mass of a substance can be related to the number of particles contained in that mass. Chemists have learned how to count molecules by weighing macroscopic amounts. Chemists must measure precise amounts for reactions to occur in an accurate manner. Analytical data and masses from the atomic chart are used to determine the number of atoms in a given volume. (28:40)
Found by laneyk in Mass
March 25, 2010 at 10:23 PM
Ages: 14 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3110 |
|
|
| |
|
|
|
|
|
|
In a world of electric charges and currents, field, forces and voltages, what really matters? When is electricity dangerous or benign, spectacular or useful? The electric potential and its gradient; the potentials of atoms and metals; electric energy, and why sparks jump.
Found by laneyk in Electric Potential Energy
March 22, 2010 at 09:54 PM
Ages: 14 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3086 |
|
|
| |
|
|
|
|
|
|
This is the 1st lesson in the series, "Radioactivity." This lesson traces the historical journey leading up to the discovery of radioactivity by Becquerel and the isolation of radioactive isotopes by the Curies. It also considers why some isotopes undergo decay and examine alpha, beta and gamma decay. Examples of nuclear reactions are also given to show the relationship between parent and daughter atoms. (24:07)
Found by begamatt in Radioactivity (Mindset Series)
April 22, 2011 at 08:31 PM
Ages: 14 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3050 |
|
|
| |
|
|
Neon: Element
From periodicvideos.com, produced by University of Nottingham
|
|
|
|
|
|
This two minute video is an overview of what neon does and what it can do. Neon is a inert gas and does not form many compounds and is mainlyused for bright lights as neon atoms are excited from electricity.
Found by freealan in Helium
July 18, 2011 at 11:12 AM
Ages: 9 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3043 |
|
|
| |
|
|
|
|
|
|
Graphene is in incredibly strong, one-molecule thick layer of carbon atoms that could someday be used to create life-sustaining nanorobots. The video is in lecture format. A YouTube version of this video also appears in the "carbon" folder. (02:11)
Found by begamatt in Nanochemistry
March 12, 2011 at 11:18 AM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 3043 |
|
|
| |
|
|
|
|
|
|
Join award winning teachers Jonathan Bergmann and Aaron Sams as they interactively teach Chemistry: 4.2 Balancing Chemical Equations. They explain that in a balanced equation every element has the same number of atoms on both sides of the equation. Then they demonstrate how to balance an equation. ( 6:48)
Found by michellehoggard in Balancing Chemical Reactions
January 14, 2012 at 12:26 PM
Ages: 15 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2999 |
|
|
| |
|
|
|
|
|
|
This is the 3rd lesson in the series, "Radioactivity." This lesson examines how scientists discovered two types of nuclear reactions: fusion and fission. Nuclear fusion takes place when two nuclei join or fuse together and release large amounts of energy. Nuclear fission takes place when the nucleus of a large atom is split into two smaller parts. Energy is also released in this reaction. (22:41)
Found by begamatt in Radioactivity (Mindset Series)
April 22, 2011 at 08:46 PM
Ages: 14 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2879 |
|
|
| |
|
|
|
|
|
|
Gravity. The stars in day. Thoughts. The human genome. Time. Atoms. So much of what really matters in the world is impossible to see. A stunning animation of John Lloyd's classic TEDTalk from 2009,
which will make you question what you actually know. (08:47)
Found by Rockefellerteacher in Existentialism
January 6, 2013 at 01:57 PM
Ages: 16 - 18
License: Undetermined
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2759 |
|
|
| |
|
|
|
|
|
|
In this six-minute video the viewer will see Professor Harman's drawings of the early atom as it was seen/imagined by earlier scientists. Sometimes the instructor is in the upper right-hand corner with information filling up the rest of the screen. (05:54)
Found by teresahopson in Atoms
July 20, 2011 at 06:39 PM
Ages: 15 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2688 |
|
|
| |
|
|
|
|
|
|
This is the 1st lesson in the series, "Chemical Bonding." This lesson demonstrates how to use the metallic bond model to explain some of the physical properties of metals and how to draw Lewis diagrams to show how atoms of different elements combine. It also show how to use Energy Level diagrams to show atoms of elements combine. (17:17)
Found by begamatt in Chemical Bonding (Mindset Series)
April 13, 2011 at 04:20 PM
Ages: 14 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2595 |
|
|
| |
|
|
|
|
|
|
When energy in an atom is lost, it goes to a photon, which is a
form of electromagnetic radiation. Find out how photons can give out a visible light with information from a science teacher in this video.
Found by grazianione in Light Photons
April 12, 2010 at 11:21 AM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2593 |
|
|
| |
|
|
|
|
|
|
Scientists discuss what sort of life could be found in the eleventh dimension. With talk of world of lightning bolts, electricity, unstable atoms and more, this clip from BBC show 'Parallel Universe' is full of mind-bending theories to set your imagination racing. (02:25)
Found by teresahopson in Parallel Universes
May 20, 2011 at 10:00 PM
Ages: 10 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2507 |
|
|
| |
|
|
|
|
|
|
A chemical demonstration of the oxidation of copper metal by nitric acid. Professor Burk shows his students the chemical equation that represents the reaction taking place. He has another video where he reduces copper ions back into solid copper atoms (04:05).
Found by tyler.arnold in Oxidation Reactions
September 5, 2012 at 06:53 PM
Ages: 16 - 18
License: Public Domain
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2423 |
|
|
| |
|
|
|
|
|
|
Graphene is in incredibly strong, one-molecule thick layer of carbon atoms that could someday be used to create life-sustaining nanorobots. The promise is that in the coming decades with carbon nanotubes, with graphene, we’ll create even new substances which can replace the silicon of computers, maybe even give us a space elevator. Graphene for example, is a substance made out of one-molecule-thick layer of carbon. Think about that. (02:11)
Found by begamatt in Carbon
February 21, 2012 at 09:40 AM
Ages: 12 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2416 |
|
|
| |
|
|
|
|
|
|
An introduction to Conventional Current and Direct current. Includes conventional current direction and dimensions. We even talk about the Bohr model of the atom. And, of course, an example problem where we figure out current and the number of electrons that pass through the wire. (10:14)
Content Times: (click time to access)
0:18 Definition of Current
1:05 The Dimensions for Current
2:00 Conventional Current (Current Direction)
3:25 Alternating and Direct Current
5:11 Reading the Example Problem
6:44 Solving for Current (part a)
7:53 Solving for Number of Charges (part b)
9:13 How many is 81 Quadrillion Elections?
Want Lecture Notes?
Next Video:
Defining Resistance, Ohmic vs. Non-Ohmic and Electric Power
Found by Flipping Physics in Current
December 2, 2013 at 04:04 PM
Ages: 13 - 18
License: Proprietary
| Rating: |
|
Not Right For WatchKnowLearn
|
|
Views: 2414 |
|
|
| |
|
|