How Stuff Works

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Biology	Chemistry	Earth and Environmental Science
Physics	Senior Science	Junior Science

How Stuff Works: Video Center - collections of QuickTime movies from a variety of sources such as Discovery Channel, Discovery Health Channel, ScienCentral, Science Channel, Reuters, MultiVu, NASA, National Science Foundation, Duke University News and Communications Videos and TED conference, as well as ones produced by Marshall Brain, How Stuff Works.
http://videos.howstuffworks.com/

Biology

9.6 Biotechnology

• GM Reduces Pesticide Application

9.8 The Human Story

• Robert Wright on Human Evolution
• Missing DNA in Apes - a new connection between humans and apes that may explain why human brains have grown so much larger
• 100 Greatest Discoveries: Evolution - human fossil from Chad in central Africa found in 2002

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Chemistry

9.8 Chemistry of Art

• Forensic Detectives: Analyzing Paint Pigments
• Forensic Detectives: Oil Residue Gives Clues to Artist

9.9 Forensic Chemistry

• Forensic Detectives: Analyzing Paint Pigments
• Forensic Detectives: Scientists Investigate Lost Art
• Forensic Detectives: Oil Residue Gives Clues to Artist
• Forensic Detectives: Conclusive Clues from DNA
• Dr. G: Toxicology
• Chemistry at Work: A Dog's Olfactory Skills

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Earth and Environmental Science

9.2 Tectonic Impacts

• When Earth Erupts: The Science of a Volcano
• Tsunami Science: Warning Systems
• What Are the Odds? Tsunami
• What Are the Odds? Tsunami
• Italian Lava Flow
• Colombian Villagers Flee Volcano
• Dangerous Mud Flows from New Zealand Volcano

9.4 Caring for the Country

• GM Reduces Pesticide Application - from Monsanto
• Champions of the Land: Rachel Carson
• Food Chains and Webs: Biomagnification
• Water in Our Environment: Toxic Waste

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Physics

8.5 The Cosmic Engine

• The Planets: The Sun and Solar Wind
• How Solar Winds Work

9.4 From Ideas to Implementation

• The Future of Semiconductors

9.6 Medical Physics

• Using X-rays and CT Scans on the Iceman
• When Civilizations End: Ancient Chiribaya Mummies
• PET Scan Imaging Advances
• Philips Helps Children Take CAT Scans
• New Technology Could Mean Fewer Breast Biopsies
• Ultrasound in Your Pocket
• Pregnancy Ultrasound - digital images

9.7 Astrophysics

• Spitzer's Spin on Stars
• Destiny - The Sun's Fate
• Time and Temperature: The Sun

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Senior Science

9.6 Preservatives and Additives

• How Food Preservation Works
• Using electricity to preserve fresh foods
• How Space Food Preparation Works

9.9 Space Science

• How Food Preservation Works
• How Space Food Preparation Works
• Future Space Food Concerns
• The Challenges of Providing Food in Space

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Junior Science

Natural disasters

• Volcanoes
  • When Earth Erupts: The Science of a Volcano
  • Forces of Nature: Tropical Storms
  • Italian Lava Flow
  • Colombian Villagers Flee Volcano
  • Concrete Balls Mute Active Volcano
  • Dangerous Mud Flows from New Zealand Volcano
• Tsunamis
  • What Are the Odds? Tsunami
  • What Are the Odds? Tsunami
  • Aftermath of a Tsunami
  • Tsunami Science: Warning Systems
• Earthquakes
  • A Closer Look at Earthquakes
• Floods
  • Floods in Australia
• Cyclones
  • Forces of Nature: Tropical Storms

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