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Why Are 96,000,000 Black Balls On This | Texan Ribs Are Bigger Than - At Up-Tube.com

Why Are 96,000,000 Black Balls on This Texan Ribs Are Bigger Than 5 months ago   12:07

Veritasium
I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn't the reason they were introduced.

Huge thanks to LADWP for arranging this special tour for me. Next time let's put the GoPro on the submersible!

The balls are made of high density polyethylene (HDPE) which is less dense than water so they float on the surface of the reservoir even if they break apart. They are 10cm (4 inches) in diameter and contain about 210ml of water. So the main reason they are on the reservoir is to block sunlight from entering the water and triggering a chemical reaction that turns harmless bromide into carcinogenic bromate. This effect occurs with prolonged exposure to bromate so regulators insist that levels be kept below 10 microgram per liter on average over a 12 month period.

Special thanks to Patreon supporters:
Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme and everyone who provided feedback on an early draft of this video.

Thanks to:
Las Virgenes Reservoir for footage of initial shade ball dump
Euro-Matic for bird into jet-engine footage

Researched and Produced by Casey Rentz

Animations by Maria Raykova

Music from http://epidemicsound.com "Colorful Animation 4" "Seaweed"

And from Kevin MacLeod "Marty Gots a Plan"

This is an educational video about the science of water quality.

Comments 44257 Comments

Joe Hanson
Couldnt they have saved money and painted all the birds and ducks black,and all the webbed feet would circulate the water,?and these guys are engineers?
Joe Hanson
Because all the taxpayers in california bought them,who else would have payed for them our gov?.such an easy question
Gunna B
Black Balls? Seriously? So 48 million Negro's donated their balls to this cause? How swell is that?
Gacha Daddy_Satan
Is anyone gonna acknowledge the bird in the video? With the plane? And how it- uh.. I think got.. uh.. chopped up by the propeller?
5:50
hamster
5:51 you guys really put a clip of a bird flying into the plane jet wow thank you for ruining my day
Vipere
That must have been some crazy math to figure out how many balls they'd need to cover the surface
M.r. Moon
Because it's California...the land of wacko liberal nutcases.
...plastic breaks down in water...so enjoy your cancer causing plastic tainted water California...you sure showed that boat guy who's boss!
Slaughter_and M3TAL
a bird flys in the plane engine 5:50
timomomomo
This guy has seen ninety-six million balls
Marni
People drink that water but a boat drives over it with oil coming out of it🤮🤮🤮🤮
Marni
Poor birds
Kaspars Birskis
can you walk on the water with it?
Paul W
um I think we need a recount...
Z ARTIN
Waisting money is what California does best. Sewage water is plenty good enough for Californians to drink.
Leon Hunter
32,000,000 $ wow
ayorkii
Because black balls are the best.
Reginald Torian
Narrator:"Why are they black?. Is it safe for them to have water?"

Us: God made us that way and we worked all day in hot fields....plus we win marathons! We need water
Cynthia Kila’
There is a twist to this somewhere . I know it 🤔

Hey has anyone heard about bill gates and his dome ?
Bottled Raccoons
wouldn’t you like to know, weather boy
goober rownowsky
All those BLACK BALLS ! sounds like a racist reservoir. Where is Al Sharpton when we need him?
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Texan Ribs Are Bigger Than Why Are 96,000,000 Black Balls on This 5 months ago   03:40

Terry Black's Barbecue in Austin, Texas is known for serving giant beef ribs that are larger than your face. Each day, the restaurant cooks nearly 130 briskets "low and slow" for hours. In addition to the massive beef ribs, you can get an assortment of side dishes all made by hand.

See more from Terry Black's BBQ: http://terryblacksbbq.com/

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