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Forensic Detectives: Conclusive Clues from DNA

Related Article: Learn more about forensic science.

DNA evidence provides the most conclusive evidence in any case. Teeth are one of the most reliable sources of DNA.

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physical science

HowStuffWorks.com Videos: Physical Science MRSS Feed

How Acoustic Levitation Works (0:47)

Acoustic levitation uses sound waves to suspend objects in a fluid, like

How Solar Cars Work (3:34)

Solar cells use sunlight to produce electricity. But can they really generate enough energy to power a car? Find out in this HowStuffWorks video.

2057: Time Travel (2:44)

Is time travel possible? What will the future be like, and could a time traveler affect it? Check out this video for more information. Brought to you by the Discovery Channel.

How Mummy Identification Works (3:23)

Today, a mummy unwrapping is a team effort: Experts gather together to identify a mummy based on the coffin and forensic evidence. Learn more about identifying mummies in this video, brought to you by the Discovery Channel.

How Falcon Mummies Work (2:23)

To learn about the role of x-ray technology in mummy research, check out this video, brought to you by the Discovery Channel.

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G Word: Highly Mobile Rig (2:00)

This clip from Planet Green's "G Word" investigates the highly mobile rig or HMR. Based in Australia, this drilling rig is one of the fastest in the world.

Extreme Engineering: Plugging Up Diversion Tunnels (3:00)

On the Iceland hydropower project, the crew scramble to prepare for the flooding waters in this clip from Discovery Channel's "Extreme Engineering."

Extreme Engineering: Icelandic Hydropower Project (2:59)

The Icelandic hydropower project is a massive undertaking. Learn more about it in this clip from Discovery Channel's "Extreme Engineering."

Extreme Engineering: Iceland Dam Building (2:48)

The Iceland dam is a massive undertaking. Learn more about this project in this clip from Discovery Channel's "Extreme Engineering."

Extreme Engineering: Iceland Dam (2:37)

The Icelandic hydropower project requires the damming of an ancient canyon. Learn more on this clip from Discovery Channel's "Extreme Engineering."

Extreme Engineering: Dam Flooding and Diversion Tunnels (2:40)

Learn how dams are built using diversion tunnels in this clip from Discovery Channel's "Extreme Engineering."

The Lost Tomb of Jesus: Using the Robot Cam (2:06)

Watch as Director Simcha Jacobovici and the crew film a possible tomb site using a robotic fiber optic camera. Learn more about Jesus and archeology in this clip from Discovery's series, "The Lost Tomb of Jesus."

The Lost Tomb of Jesus: Simcha Interview, Part 1 (4:44)

The film's director explains about how he first became involved with the quest for the Jesus family tomb. Learn more about Jesus and archeology in this clip from Discovery's series, "The Lost Tomb of Jesus."

The Lost Tomb of Jesus: Simcha Interview, Part 4 (3:09)

The director tells how the critical turning point in the investigation came with the discovery of the "second" Mary. Learn more about Jesus and archeology in this clip from Discovery's series, "The Lost Tomb of Jesus."

The Lost Tomb of Jesus: Simcha Interview, Part 3 (1:42)

Simcha believes he should simply tell the story and let the scientists and theologians debate the facts. Learn more about Jesus and archeology in this clip from Discovery's series, "The Lost Tomb of Jesus."