סרטונים מובילים
Evicted from his apartment, James has to move in with his girlfriend of 3 months. He quickly discovers that she's everything he never wanted in a woman.
Director: Michael Whitton
Stars: Jameel Saleem, Quincy Harris, Kevin Hart, Big Boy, Noelle Balfour
► Subscribe to get all the latest content https://bit.ly/3MUpeLC
#kevinhart #comedymovie #TheStreamMovies
At the old hut site (the new one being temporarily cut off by flooding) I made lime mortar from the shells of rainforest snails by firing them in a kiln, slaking them in water, mixing them into lime putty. Limestone is basically calcium carbonate (CaCO3). The general source of lime is limestone and various other calcareous minerals, though shells, egg shells and coral are other sources of lime (for more information see video on Corporals Corner channel: https://youtu.be/tOhAfaFboNU or Skillcults channel: https://youtu.be/jOxaOTUGuKo). When heated above 840 degrees Celsius, the lime decomposes into calcium oxide (CaO) or Quicklime and releases carbon dioxide (CO2). When water is added to the quicklime it becomes calcium hydroxide Ca (OH)2 or lime putty. From here the calcium hydroxide can then be shaped into a form and allowed to set. Carbon dioxide enters the lime putty as it dries causing it to turn back into calcium carbonate. The new calcium carbonate has then set, remaining solid and water resistant.
In my local geography, calcareous rocks such as limestone are absent leading to a difficulty in acquiring the feed stock for lime making. However, I was still able to make lime by collecting the shells of large terrestrial snails that are native to the rainforest here. The unoccupied shells of these snails were gathered up and stored at the hut. Fire wood was gathered and packed neatly into the kiln. Importantly, the firewood was stacked on top of the grate rather than underneath it in the firebox as is the normal procedure for firing pottery. Using an ordinary updraft pottery kiln in this configuration allows it to reach much higher temperatures than would be possible during normal use. The wood was lit from above and the fire burned down towards the grate. Alternate layers of shells and wood were added on to this burning fuel bed. After adding the last layer of wood to act as a “lid” to prevent heat loss from above I left the kiln to finish on its own, unsupervised. The whole process took about an hour and a half.
When the kiln had cooled down a few hours later, I took out the calcined shells. Not shown in the video was the fact that some shells got so hot, the dirt stuck to them turned into slag and fused to them, possibly with the lime acting a flux lowering its melting point. This extreme heat (+1200 c) should be avoided as the over burnt lime becomes “dead lime”, unable to slake in water. Most shells were still useable though. They were taken out of the kiln and had water added to them. An exothermic reaction then ensued. Heat was produced as the lime quicklime turned into slaked lime. The water heated up creating steam and the shells decomposed into a white paste. The paste was stirred and crushed pottery was added to it as an aggregate (sand is normally used for this, I just had a lot of old pot sherds lying about to dispose of). This lime mortar mixture was then formed into a block shape and left to dry. It took about a week and a half to set as we have had extremely humid, wet weather. The block was observed to have set demonstrating its properties.
What I created is actually lime mortar, typically used for mortaring bricks and tiles together. It’s basically the ‘Glue’ that holds together the building blocks of masonry structures. From my research 20 kg of lime mortar is used on a 1 m square section of brick wall. 5 kg of lime to 15 kg of aggregate (sand, grog etc.) per a 1 m square section of bricks. The shells, though large, are not terribly abundant. A method for finding shells efficiently needs to be made before considering making lime mortar in this fashion. From my experience sand bars in a creek sometimes accumulate snail shells from higher up in the mountains. In these spots, water velocity decreases and shells in the water tend to drop out of the water column. Additionally lime may be partially replaced with ordinary wood ash in mortar without a corresponding decrease in strength. To conclude, making lime in a land without limestone is possible but can be problematic when trying to do so on a large scale.
Wordpress: https://primitivetechnology.wordpress.com
Patreon page: https://www.patreon.com/user?u=2945881
I have no face book page, instagram, twitter etc. Beware of fake pages.
You're watching the HD remastered music video for "Papa Don't Preach", from Madonna's album 'True Blue' released on Sire Records in 1986. Buy/Stream the 'True Blue' album here: https://Madonna.lnk.to/TrueBlue
Listen to Madonna’s latest release here: https://Madonna.lnk.to/latest
Subscribe to the Madonna Channel! https://Madonna.lnk.to/YouTubeID
Check out the Official Madonna YouTube Playlists…
The Complete Madonna Videography https://Madonna.lnk.to/Videography
Live Performances https://Madonna.lnk.to/LiveYT
MDNA Skin https://Madonna.lnk.to/MDNAskinYT
Help Us Give Back…
Raising Malawi http://www.raisingmalawi.org/
The Ray of Light Foundation http://www.rayoflight.org/
Stay in touch with Madonna…
http://madonna.com
http://instagram.com/madonna
http://twitter.com/madonna
http://facebook.com/madonna
http://www.madonna.com/newsletter
The Madonna Channel is the official YouTube home for Madonna. As the best-selling female recording artist of all time, Madonna continues to leave an indelible mark on the world through her art, music, activism and humanitarian leadership. Madonna consistently pushes boundaries, spurs conversations and unites us all through her revolutionary work. Subscribe for the latest videos, music, news and updates. Enjoy Madonna’s groundbreaking music videos, live performances, humorous videos and more.
Lyrics:
Papa, I know you're going to be upset
'Cause I was always your little girl
But you should know by now, I'm not a baby
You always taught me right from wrong
I need your help, daddy, please be strong
I may be young at heart, but I know what I'm saying
The one you warned me all about
The one you said I could do without
We're in an awful mess
And I don't mean maybe
Please
Papa don't preach
I'm in trouble, deep
Papa don't preach
I've been losing sleep
But I made up my mind
I'm keeping my baby
Ooh, I'm gonna keep my baby, mmm
He says that he's going to marry me
We can raise a little family
Maybe we'll be all right
It's a sacrifice
But my friends keep telling me to give it up
Saying I'm too young, I ought to live it up
What I need right now is some good advice
Please
Papa don't preach
I'm in trouble, deep
Papa don't preach
I've been losing sleep
But I made up my mind
I'm keeping my baby
Ooh, I'm gonna keep my baby, aah, ooh
Daddy, daddy, if you could only see
Just how good he's been treating me
You'd give us your blessing right now
'Cause we are in love
We are in love
So please
Daddy, daddy
Daddy, daddy
Daddy, daddy, if you could only see
Just how good he's been treating me
You'd give us your blessing right now
'Cause we are in love
We are in love
So please
Papa don't preach
Papa don't preach
Papa don't preach
Papa don't preach
Papa don't preach
Papa don't preach
Papa don't preach
I'm in trouble, deep
Papa don't preach
I've been losing sleep
But I made up my mind
I'm keeping my baby
Ooh, I'm gonna keep my baby
Papa don't preach
Don't you stop loving me, daddy
I know I'm gonna keep my baby, ooh
#OfficialMusicVideo #Madonna #PapaDontPreach #WeAreWarnerRecords
Official video for "The Closer You Get” by Alabama
Listen to Alabama: https://alabama.lnk.to/listenYD
Watch more videos by Alabama: https://alabama.lnk.to/listenYD/youtube
Subscribe to the official Alabama YouTube channel: https://alabama.lnk.to/subscribeYD
Follow Alabama:
Facebook: https://alabama.lnk.to/followFI
Instagram: https://alabama.lnk.to/followII
Twitter: https://alabama.lnk.to/followTI
Website: https://alabama.lnk.to/followWI
Spotify: https://alabama.lnk.to/followSI
YouTube: https://alabama.lnk.to/subscribeYD
Ask your voice device to play Alabama!
Lyrics:
The closer you get, the further I fall
I'll be over the edge now in no time at all
I'm falling faster and faster and faster with no time to stall
The closer you get, the further I fall
#Alabama #TheCloserYouGet #OfficialVideo