SciShow
5 Amazing Record-Breaking Caves
Caves are fascinating, but these ones are some of the most fascinating, both in and out of this world. Hosted by: Stefan Chin
MinuteEarth
Our Lungs Have A Fatal Flaw
Our respiratory systems do a great job of protecting us, but they are no match for the smallest pollution particles created by the modern world.
SciShow
5 Amazing Record-Breaking Caves
Caves are fascinating, but these ones are some of the most fascinating, both in and out of this world.
Curated Video
Crystals in Caves
Discover the chemical processes occurring deep within the Earth that create beautiful crystal structures in caves. Chemistry - Reactions - Learning Points. Caves are a result of rainwater slowly carving away rock. Carbonic acid forms in...
Curated Video
Landforms of the United States
Dr. Forrester explains the variety of landforms throughout the United States.
Great Big Story
Unveiling the Secrets of Naples, A Journey Through the Bourbon Tunnel
Explore the hidden depths of Naples in the Bourbon Tunnel, a historical underground passage that tells the rich and layered history of the city from royal escapes to wartime shelters.
Bloomberg
Caliche CEO Lays Out Storage Strategy
May.23 -- In this week's "Commodity In Chief" segment on "Bloomberg Commodities Edge", Bloomberg's Alix Steel talks to Caliche CEO Dave Marchese about the company’s growth plans and its storage strategy. Caliche focuses on the...
Curated Video
John Ackerman is a big landlord of underground real estate. He owns 45 caves hidden beneath the rolling farm fields of Minnesota and Iowa, and he's looking for more. (Nov. 7)
FOR CLEAN VERSION SEE STORY NUMBER: apus000812
(SOUNDBITE: John Ackerman, Cave Owner:)
"I think it's just to be able to be the first human to introduce light into the inky blackness of just unknown chambers that may go for miles. And...
AFP News Agency
VOICED: Digging deep into Teotihuacan's mystery
VOICED: Digging deep into Teotihuacan's mystery
PBS
Pbs Learning Media: Sinkholes
Observe the common characteristics of sinkholes while watching kids use the scientific method to find out how sinkholes form.