This Tesla Valve Straw Only Works In One Direction

In this video I show you a straw that is made as a tesla valve. I talk about what a tesla valve is and how it works as a one way flow valve. I also talk about what tesla might have used the valve for in his work.

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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

[crobodile]

“Can I have some of your drink?”
“Yeah just flip the straw over to the side I didn’t put my lips on.”

[kamo]

A clear version would be even better if it's possible then we could see the fluid impeding itself

[falconeio]

I'd love to see this done with a clear version and colored fluid, so we can see how it's actually flowing inside.

[shadowlord]

"is it harder to suck in one direction than the other"
looking at my life choices i suck in both directions

[loganpedersen]

“Why would you want a one way straw?”

So the kids don’t blow bubbles in their drinks

[kibbiking]

A one-way straw would be useful if you're sharing a drink from the same cup because the valve at the end of the straw makes sure no liquid being sipped goes back into the drink.

[auralynn]

"Why would you want a one-way straw?"
For sharing a drink. *Shudders at backwash*

[russ_carspotta]

Science dude: "and no water comes out"

water:*drip*

[prathameshdeshmukh]

Now combine all valves for ultimate blockage.

[LGioGA]

4:14
“I can still get it, but it is a lot harder. I can barely get any water unless I suck hard.
This way, it comes right in.”

[fenrisredacted]

Is this why Half-Life 3 hasn't released yet? It's going the wrong way through the valve?

[caliberwhips]

I glanced at the title and thought for a sec Tesla was now making straws

[amaangaur]

1:15 the moment i thought he'd now surely mention Tricuspid and Bicuspid Valve too

[shhh]

This whole video is a “that’s what she said” joke

[Zeedius]

"Why would you want a one way straw?"
Time-efficiency, imagine all those seconds you'll save just by having the fluid ready to flow into your mouth, without it needing to climb the whole straw.

[hansimansi]

4:20 what a legendary timestamp and what a legendary quote

[ReelFusionbySupun]

Actually, the one way straw may help prevent diseases when sharing drinks. Because the person's saliva doesn't go back to the drink

[PanDrA_]

“No water comes out”
The water coming out: *I serve no purpose*

[iseraid]

5:39
"For example I just put a one way valve on a straw here" *starts drinking antifreeze*

[Spherey]

1:20 this is basically me trying to prioritize my thoughts with adhd symptoms but my thoughts just end up being a mess