search results matching tag: sinkholes

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (32)     Sift Talk (0)     Blogs (7)     Comments (74)   

Is Japan Sinking, Moving Liquefied Ground Near Tokyo

Yogi says...

Ya know I've lived in California a long time...been through every earthquake in the last 20 years. But this caused me to Freak my Geek out! Water is coming up from under the ground...it's all shifting VERY slowly. Get out of that country people...having you heard of the Chile sinkhole!?

Solar Highways!!!

Porksandwich says...

What do these common road contaminants/applicants do to it?

Oil, salt, rubber, tar (because we're not going to be able to do all roads at once obviously), rocks, dirt, rust flakes, hydraulic, transmission, anti-freeze, various other car fluids, gasoline spills, diesel spills.

If an accident occurs how easily is the glass scratched, how much damage can it take before it needs a full replacement.

When replacing/repairing them, how long does it take? Is it cheaper to repair/replace them than it would be to maintain asphalt. How long do they last? Asphalt can go 10-15 years on parking lots if maintained and not overly abused via spills. Roads vary due to traffic and how smooth they are, plows eat them alive when they begin to hump/buckle or become misshapen in some way.

If one breaks or is damaged....does it affect the power generation? How much so? Will it take out city blocks of power like a power line going down?

What if a water main bursts under it or near it....will it support the weight if the foundation is washed away? Will it heave up in a big panel making the surface uneven? Will it breaks the other panels when it does this? Or cause some other damage due to the feed being broken?

How does it handle snow, ice, dust, fog, mist. Extreme temperatures. Can they be salted and plowed or do they self-clear snow somehow?

Most cracking and uneven-ness in road surfaces comes from the foundation below it, some people call them structural cracks..like the foundation of your house might get because of settling. It's also a telltale sign of problems below the surface of the road, masking that problem may not be a desirable quality even though it makes it a more convenient road surface in the meantime. It's like pothole versus sinkhole problems....I'd rather blow out a tire than have my car swallowed by the road.

If they keep this primarily to freeways they can avoid most issues with water mains, gas lines, sewer, etc. But they'll still have storm drains and the underground pipes associated with them, not as much of a big deal if they leak...but if they were to be plugged and a big rain came it can cause havoc with roadways above and below the surface...they don't plan for the water to start flowing up from beneath the roadway.

Finish grade asphalt and concrete work is pretty fast moving stuff when everything else is ready. It's all the sub grade work that takes months and even years.

Be great if it worked, but maybe they should start with sidewalks or bike paths...military base applications...they see some heavy equipment rolling through there, if it lasts through those....

Raw Footage of New 200ft Deep 'Piping Feature' in Guatemala

Hybrid (Member Profile)

Guatemala Sinkhole May 31st 2010

kronosposeidon (Member Profile)

Guatemala Sinkhole May 31st 2010

Guatemala Sinkhole May 31st 2010

Duckman33 (Member Profile)

Waiting for Superman Trailer

Sagemind says...

Synopsis

For a nation that proudly declared it would leave no child behind, America continues to do so at alarming rates. Despite increased spending and politicians’ promises, our buckling public–education system, once the best in the world, routinely forsakes the education of millions of children. Oscar®—winning filmmaker Davis Guggenheim (AN INCONVENIENT TRUTH) reminds us that education “statistics” have names: Anthony, Francisco, Bianca, Daisy, and Emily, whose stories make up the engrossing foundation of WAITING FOR “SUPERMAN.” As he follows a handful of promising kids through a system that inhibits, rather than encourages, academic growth, Guggenheim undertakes an exhaustive review of public education, surveying “drop—out factories” and “academic sinkholes,” methodically dissecting the system and its seemingly intractable problems. However, embracing the belief that good teachers make good schools, Guggenheim offers hope by exploring innovative approaches taken by education reformers and charter schools that have—in reshaping the culture—refused to leave their students behind.

Guatemala Sinkhole May 31st 2010

Hybrid (Member Profile)

BELIZE: Discovering the Blue Hole, Belize Barrier Reef

BELIZE: Discovering the Blue Hole, Belize Barrier Reef

BELIZE: Discovering the Blue Hole, Belize Barrier Reef



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon