- published: 11 May 2016
- views: 389320
A cave or cavern is a hollow place in the ground, especially a natural underground space large enough for a human to enter. Caves form naturally by the weathering of rock and often extend deep underground. The word cave can also refer to much smaller openings such as sea caves, rock shelters, and grottos.
Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called caving, potholing, or spelunking.
The formation and development of caves is known as speleogenesis. Caves are formed by various geologic processes and can be variable sizes. These may involve a combination of chemical processes, erosion from water, tectonic forces, microorganisms, pressure, and atmospheric influences.
It is estimated that the maximum depth of a cave cannot be more than 3,000 metres (9,800 ft) due to the pressure of overlying rocks. For karst caves the maximum depth is determined on the basis of the lower limit of karst forming processes, coinciding with the base of the soluble carbonate rocks.
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A short film is any film not long enough to be considered a feature film. Although no consensus exists as to where that boundary is drawn, the Academy of Motion Picture Arts and Sciences defines a short film as "an original motion picture that has a running time of 40 minutes or less, including all credits". The term featurette originally applied to a film longer than a short subject, but shorter than a standard feature film.
The increasingly rare term short subject means approximately the same thing. An industry term, it carries more of an assumption that the film is shown as part of a presentation along with a feature film. Short is an abbreviation for either term. Short films are often screened at local, national, or international film festivals and made by independent filmmakers for non profit, either with a low budget or no budget at all. They are usually funded by film grants, non profit organizations, sponsor, or personal funds. Short films are generally used by filmmakers to gain experience and/or prove their talent in order to gain funding for future films from private investors, entertainment companies, or film studios.
From a thriving cave school to a cavern overflowing with giant razor-sharp crystals, we count ten of the weirdest caves ever Facebook: https://www.facebook.com/TheDDGuides Twitter: https://twitter.com/TheDDGuides Countdown Channel: http://www.youtube.com/DDTop20 Gaming Channel: http://www.youtube.com/TheDDGuides Gaming Livestream: http://www.twitch.tv/dangerdolan Animation channel: https://www.youtube.com/c/superplanetdolan Click here for the written version of this video: http://www.planetdolan.com/10-weirdest-caves-ever/ Come work for PLANET DOLAN! You can find job listings here: http://www.planetdolan.com/planet-dolan-jobs-opportunities/ Legal notes --- Video narrated by Pringle the One, check out his channel here: https://www.youtube.com/PringleTheOne Video produced by Planet Dol...
Millions of years in the making, underground caves sustain delicate ecosystems that are rich in biodiversity. In this short film by Drew Perlmutter, explorers of the vast cave networks in the southern United States explain the importance of preserving these subterranean worlds. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Short Film Showcase: http://bit.ly/Shortfilmshowcase About Short Film Showcase: The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the web and selected by National Geographic editors. We look for work that affirms National Geographic's belief in the power of science, exploration, and storytelling to change the world. The filmmakers created the content presented, and the opinions expressed are their own, not those of Nat...
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Here are10 of the world’s creepiest underground caves. While bats and bugs are among the most common denizens of deep, dark caves, supernatural and other particularly chill-inducing inhabitants are said to be occupying a few of them as well. Here are 10 of the world’s creepiest underground caves. Number 10. Mammoth Cave. America’s national parks aren’t all about hiking and camping, some offer ghost hunting as well. Among the many spirits said to be roaming about is that of Floyd Collins, an explorer whose leg got pinned by a rock. He perished underground while waiting for help. Number 9. The Killing Caves of Phnom Sampeau. Though great efforts to beautify this locale have been made over the years, the horrors of the genocide that occurred here are still evident. The bones o...
Go check out these 15 beautiful caves they are natural wonders one filled with huge crystals and one that the largest ice cave ever! Subscribe for new videos Monday Wednesday and Friday! 9. The Reed Flute Cave – Guangxi, China This cave is quite the landmark and a major tourist attraction that can be found on the outskirt of the city of Guilin in Guangxi, China. The cave gets its name from the reeds that grow inside it and are perfect for turning them into reeds. Not only that, but you can also find a variety of mineral formations, carbon deposits and stone pillars. The cave was rediscovered back in the 1940s by refugees and is around 180 years old with roughly 70 inscriptions on the walls that go as far back as 792 AD. 8. The Blue Grotto – Capri, Italy This famous sea cave can be fo...
Go to http://farlang.com for ultra fine jewelry, unique gems, gem cutters & artists or read the stories by museum curators. Or better yet... attend one of our invitation-only gemstone or fine jewelry events at a jeweler in the USA. NGC goes inside one of the greatest natural marvels on the planet - a giant crystal cave described as Superman's fortress, with magnificent crystals up to 36 feet long and weighing 55 tons. A team of experts ventures into the cavern, enduring scorching-hot temperatures that could kill a human after just 15 minutes of exposure. They'll push the boundaries of physical limitation to explore a crevasse that could lead to another - and perhaps more spectacular - crystal cave.
From underground Mayan megaplexes to cocoons full of corpses, we count 10 Unexpected Things Found in Caves Facebook: https://www.facebook.com/TheDDGuides Twitter: https://twitter.com/TheDDGuides Countdown Channel: http://www.youtube.com/DDTop20 Gaming Channel: http://www.youtube.com/TheDDGuides Gaming Livestream: http://www.twitch.tv/dangerdolan Animation channel: https://www.youtube.com/c/superplanetdolan Click here for the written version of this video: http://www.planetdolan.com/10-unexpected-things-found-in-caves/ Come work for PLANET DOLAN! You can find job listings here: http://www.planetdolan.com/planet-dolan-jobs-opportunities/ Legal notes --- Video narrated by Melissa Morgan, check out her website here: http://melissa-morgan.com/ Here’s a Playlist of all of Melissa’s videos: ...
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https://www.g2a.com/r/Psi (use code "PSI for 3% cashback) https://drakemoon.com/promo-code/psi (use code "PSI" for free unboxing) http://ElementalKnives.com/Psi (use code "PSI" for 10% off) DESCRIPTION Rust has another new weapon added, the M92 (not M9) pistol, so let's check it out, try it out in some PvP and also have another look at the caves, which are FINALLY in the main build on Rust, oh are these fun to explore! Rust Devblog 138 (M92 Pistol added and caves): https://playrust.com/devblog-138/ Rust on Steam: http://store.steampowered.com/app/252490/ Rust Website: http://www.playrust.com/ Thanks for watching, please don't forget to like and subscribe if you enjoyed this video, and check out other videos on my channel. SOCIAL MEDIA Twitter — https://twitter.com/PsiSyndicate Twitch...
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If I wish for bad weather then you wouldn't have to go
But I know this is what you need and that you should grab
it all
Now I know it is time to accept it, never think you're
alone
Being sure of who you are is the thing that keeps you