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Scientific Cliffhangers: Daring Rescues (6:51)

Because of the area's inherent danger and frequent tourist missteps, professional rescuers have become well acquainted with Niagara Falls.

Scientific Cliffhangers: Indoor Rock Climbing (7:06)

Indoor rock climbing is good exercise. The Adventure Center in Scotland is the worlds largest indoor climbing facility.

Behind the Scenes: The History of Museums (1:26)

Museums foster education and lifelong learning among their visitors. The word "museum" comes from the Greek word for a place of worship of the Muses.

Behind the Scenes: The Milwaukee Public Museum (1:51)

Museums educate patrons about Earth's history.

Underwater Forensics: Water Disaster Protection (0:44)

This clip explains that people can protect themselves from water disasters by having a lifejacket, getting on a lifeboat, knowing how to swim, having a map and participating in practice drills.

Scientific Cliffhangers: Mitigating the Niagara Rapids (2:35)

The rapids at Niagara are classes 5 and 6 rapids, the most dangerous. Special jet boats must be used to combat the current during water rescues.

Scientific Cliffhangers: Good Rock Climbing Techniques (4:23)

Finger strength, using your legs, a good safety harness, planning an effective route and plenty of practice make a good rock climber.

Scientific Cliffhangers: Largest Indoor Climbing Site (2:46)

The Adventure Center in Scotland is the worldÕs largest indoor climbing facility, featuring a variety of climbing services for different levels of climbing expertise.

Snakes (2:29)

What are the odds you will survive a snakebite?

Shark Attack (2:24)

What are the odds you will be attacked by a shark?