Subscribe to Naked Science - http://goo.gl/wpc2Q1
Every other Wednesday we present a new video, so join us to see the truth laid bare...
Sample clip showing “Blood Flow in the Frog Web” taken from the David Barlow Film Archive. Film category, Microscopy : Blood flow in the frog web.
Differential interference contrast microscopy (DIC), high magnification view of blood flowing in capillaries in the web of juvenile clawed toads. The dark spots are melanocytes. When expanded, these pigmented cells darken the skin which is otherwise transparent. Blood flow through the capillary bed can be regulated through muscles in the larger vessels. These can contract or dilate the vessel to slow down or speed up blood flow depending on external conditions.
For more clips, information, and licensing visit - http://www.davidbarlowarchive.com
David Barlow’s YouTube channel - http://goo.gl/fvYIlW
The David Barlow Special Effects Film Archive is a unique film and video library. It contains a comprehensive collection of moving images photographed by award winning cinematographer David Barlow. Clips are organised in a hierarchy of subjects and topics covering the following categories :
Elements and Textures
David Barlow is a scientist and cinematographer. He has devised a number of scientific techniques for filming microscopic and endoscopic set-ups to achieve optimal visual results. David works to expand the archive of scientific film he has been compiling for 20 years. He also takes commissions to create visual effects sequences, specialising in complex simulated reconstructions of real phenomena on a miniature scale. He uses models and composites to cross the boundaries of scale and create special effects shots for high end TV documentary production.
Tagged under: differential,interference,contrast,microscopy,dic,frog,webbed,feet,capillary,blood,flow,web,high,magnification,flowing,cells,cellular,juvenile,clawed,toads,dark,spots,melanocytes,pigmented,darken,skin,transparent,regulated,muscles,contract,dilate,circulation,conditions,magnify,special,effects,micro,denser,tissue,capillaries,vessel,wall,veins,arteries,arterioles,vascular,beds,imagery,nomarski,nic,optical,illumination,light,visualisation,beauty,natural,world,microvessel,echo,phase
Find more lesson plans like this:A Fern Life Cycle: Plant Reproduction Without Flowers or Seeds
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes