7.3.3 Plasmas More control can be achieved in vapour deposition if a plasma is generated. A plasma is simply a gas where a proportion of the molecules have been ionised. The ions remain in an uneasy equilibrium with the electrons they have released, prevented from recombining only because the electrons are hot and fast-moving, and so are difficult to trap. Plasmas are widely used in materials processing, with pressure ranging from 10−3 mbar to 1 mbar and typically up to 1% of the molecul
More control can be achieved in vapour deposition if a plasma is generated. A plasma is simply a gas where a proportion of the molecules have been ionised. The ions remain in an uneasy equilibrium with the electrons they have released, prevented from recombining only because the electrons are hot and fast-moving, and so are difficult to trap.
Plasmas are widely used in materials processing, with pressure ranging from 10−3 mbar to 1 mbar and typically up to 1% of the molecul
This 4:50 video explains that photosynthesis is a process found in plant cells which converts light energy into chemical energy in the form of sugars that the plant can store and use at any time. Photosynthesis takes place in the chloroplasts, an organelle only found in plant cells, and consists of two parts: the light dependent reaction, which converts light energy into ATP, and the Calvin cycle, which converts ATP into glucose. The video is in lecture format.
FDR Reports to New American Congress
The new American Congress, chosen by the people during Franklin D. Roosevelt's administration, gathered at the Capitol to hear his inspiring message of courage and hope. (01:52)
How to set a passing grade for a lesson
This video will show you how to only open up the rest of your course once the student gets a passing grade from one lesson.
DeBono's Six Thinking Hats in the Classroom
This video shows Edward deBono's technique of Six Thinking Hats being used in different classroom settings.This theory encourages creative, lateral thinking. This video provides an example of the theory in action and is intended for teachers with prior knowledge on the theory. ( Portions of the video could also be shown to students preparing to use the strategy.) ( 14:34)
Decoding human cytomeglalovirus
Talk by Noam Stern-Ginossar, University of California San Francisco School of Medicine, Department Cellular & Molecular Pharmacology
By: jalva7 Scan electron microscope view
Unrelated viral ribonucleases recruit host Xrn1 to enact global mRNA degradation
Talk by Marta Gaglia, University of California Berkeley. http://glaunsingerlab.berkeley.edu/mgaglia
Dr. Carlos Corvalán - lecture
20th Annual John K. Friesen Conference - 2011 Growing Old in a Changing Climate: Exploring the Interface Between Population Aging and Global Warming Dr. Carlos Corvalán Senior Advisor in Risk Assessment and Global Environmental Change, Pan American Health Organization (PAHO)/WHO, Washington, DC, USA More info: http://www.sfu.ca/grc/friesen/friesen2011/
young innovators opening animation x264 1280x720
Description not set
Video Flash Cards: Subtraction by 3
Sample video using video flash cards to help students learn their Subtraction Tables. There is no sound; just flashcards. If opened to 'full screen', the flashcards are large enough to be seen in a classroom on a laptop screen. (02:36)
Science Bulletins: Monitoring Mount Etna -- Magma on the Move
cientists in Sicily are collecting an enormous amount of data to monitor moving magma inside Mount Etna, one of the most active volcanoes in the world. Nearly a million people live on the volcano's flanks, so being able to predict an eruption could be a matter of life and death. In this Earth Bulletin, visit the volcano's snowy slopes and learn how scientists from the Italian National Institute for Geophysics and Volcanology record seismic activity, measure gases seeping up through the ground, s
How ice cream is made
This is a great educational video on how ice-cream is made. It takes us from the fields were the cows graze to the factory where the ice cream is boxed up and sent out to shops. (05:02)
Convective Heat and Mass Transfer
This 32-minute lecture is for advanced students his course and assumes that the students an understanding of
Engineering Mathematics, Thermodynamics, Heat Transfer and Fluid
Mechanics and are familiar with the use of experimentally derived
CORRELATIONS for estimating heat/mass transfer coefficient in a variety
of flow situations. The purpose of this course is to justify the basis
and the form of these correlations on the basis of fundamental transport
Music Video for Get the Math
2:03 This animated video features music by DobleFlo, the hip-hop duo that appears in Get the Math.
FUNdaMENTALS Chapter 2
Description not set
Design Thinking at IDS
Money, War, and 2012
Chrystia Freeland talks to Steve Clemons, the Atlantic's Washington Editor-at-Large about money, war, and the 2012 election.