If you had a boat, what would you call it?

Neat project. I think it alternately pushes water out and sucks it in both of the tubes. At least that's how most of the pop pop engines I've seen work. Other wise, we'd probably just use heating loops in pipes instead of pumps and this would be called a thermosyphon. We use thermosyphon cooling on our refrigeration compressors at work but one end is slightly higher than the other so that the heat creates bubbles and makes the liquid refrigerant less dense on the heated side which causes the incoming side to be heavier than the outgoing side. In a pop pop engine, the water boils, creates steam, pushes water out of the tubes, creates a vacuum in the boiler, sucks water in (all tubes) and starts the cycle over. In refrigeration terms, you're riding the saturation line of the pressure/temperature chart for water- quickly changing state from liquid to vapor and back.

To help bending the tube without kinking: - leave it a little longer than it should be - squeeze one end shut - fill it up with very fine sand or salt - squeeze the other end shut - bend - cut off both ends

I personally adore your egg slicing and hot knife cutting videos please please please do more because we haven’t seen them in a long time. I love you Dave.

Me : I am gonna throw all these waste in dustbin. Dave : No, that'll be my next Episode. *PRETTY COOL HUH*

That's pretty ingenious and I'm totally impressed

DaveHax: This copper pipe measures 3/16 of an *inch* in diameter and cut a length of aproximately 38 *centimeters* Me: **Confused screaming**

I Have watched you since 2015 and youre still AMAZING

*wishes DaveHax had been my science teacher in school*

Put a transparent cylinder around the outside with colours painted on or pictures in a sequence that makes an animation as the boat turns. Could make an interesting holiday decoration.

I learned these boats exist by watching Ponyo as a little kid😂

Recycling, the best word I can hear in your content.

Just seeing polystyrene makes my skin hair rise and cold shivers go through my body. And then to just imagine all the grating sounds that cutting the polystyrene makes. Causes shivers to go all the way through my body.

Davehax can you heart this comment I’m a og fan

This is great for romance xD just imagine some one needs to make a romantic but scientific dinner just imagine the look on their face xD

Wish I would have found you sooner, you make such good content.

Great science experiment Dave!

You spin me right round baby, right round like a record baby, right round round round

Me: mom can I make this boat Mom: NO Me: putt putt why not

Amazing diy project !

I love your video's 😍😍😍

Wow, that's amazing!

OMG I love your vids! It all works! thx!

Dave I've been with u for a long time and love your videos hope u have a good day and good job Keep up the good work I subbed and hitted the notification bell you are my childhood hero thank you

I've been watching since I was 6 Im turning 14 on the 29th

Pretty cool, Dave.

This is awesome!

Well, look who's back from the dead! Welcome back, DaveHax!!

Another encouraging video

Pretty Cool? Hell Yeah!!! That's awesome Dave, 👍🏻💖🏆🥂

0:07 don’t you hate it when you receive lots of excess packaging that just ends up in landfill

That’s cool I like it 👍gets the mind thinking.

Awesome video Dave! Been a fan since 2014! So awesome to see how much you have grown!

I would call my boat The Titanic XD

Long time since you last Pop Pop boat 😁👍

Who likes this PRETTY COOL HUH

I actually will do this because this is so cool

This man has too much time on his hands, well we all do but when it’s a normal day he does (when it’s not a pandemic)

It you bent both ends in the same direction would it just go forwards?

I've been following his channel since 2014 when he made Travel Hacks

you could put a decoration over it and make it look like it's dancing

Pretty cool

im back to HAX!!! I have nothing to do during this pandemic. So DaveHax is the answer to my key. Unfortunately i do not get all those foam packaging as much. Postmaster is too scared But i find floral rings.

Pretty cool hu!

omg thats so cool!

I love it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! This reminds me of the boat that is on the movie, "Ponyo"!! Can you make one like that? One that moves forward?

Pretty cool...

Agree with comment earlier. The steam must force water out of both exits and the water in the pipe must all turn to steam. Eventually the pipe will get hotter and hotter as there is no water to absorb the heat. Great video.

Great vid

Very creative👍🏻Much better then it going to landfill😕💖😊

How to scare your baby 101

Love your work

i swear this is the longest video by Dave ngl lol

Amazing

Very Cool

Good. E Polytechnic. A technical channel.

For those who don't have a glass bowl, a properly sanitized toilet bowl will suffice as an appropriate vessel

I would like to make a boat for a long time and now I know how to do.

Good boat

Thank you because I've received creative scientist at school because of you😳

"spinning pop pop putt putt boat" Me: what the heck is thay

so as long as the candle is there and heating the pipe it will infinintly go

Why does T series have more subscribers than davehax ????

I don't get it. How is the water sucked in, when heat makes things expand? Wouldn't the water be pushed out of BOTH ends?

Pls do how to make a 100% legal non nukeler warhead that makes a mushroom cloud

I love davehax

I like it

Can you use this engine and use it as a substitute for the putt putt boat you build awhile ago

How does the water choose it path of direction? Is it random each time which way the water travels through the pipe or does it just vary and become random each time?

خیلی مفید.😘

Nice video bro👍👍👍❤️❤️❤️

Pretty cool hah

nice

You should do the same but with a boat hall

DON’T PLAY WITH FIRE, KIDS!

I’ve been watching since 2015

good

@4:47 Ummm that doesn't seem right? Which side of the pipe sucks vs blows? I would think both suck and both blow of the same amount. Which would still allow the spinning

If fresh water is sucked in one end and pushed out the other end, shouldn’t the pipe be angled differently. Seems as shown if one pipe is pushing and one pipe is pulling, they would work against each other?

You: let’s recycle the foam. Me: Ya said it won’t go to landfill but some still does!!🤣🤣🤣🤣😂

How long did it take to heat up the bowl of water? Did you happen to gauge the resulting temperatures? ☺️

WOW! Add a solar panel and away we go! would that work?

Are you coming to Essex,Barking and Dagenham,RM96AF??????

Michael Jackson moon walk😅

Can you show if the water is really going in one end and out of the other? It seems unlikely

how come one end of the pipe squirts water out and the other does not? what determines which pipe does this?

It is early spinning light house principals?

if it's sucking water in one end and pushing out the other, don't you want them facing the _same_ direction?

Pretty *boaty* huh?

I Know You see a Video King Of The Random

Better than 5 mins craft

Dave, that was a mini steam engine

Pretty spin me right round (singing) right round

Please could you make Christmas gift Craft's for children to make for there family.

Not a pop-pop boat. But a good design.

Quick question, When you reach 5 mil can you start using your real voice (unless this is your real voice I think its a computer voice...) P. S. I love your channel and subbed!

that blue disk is very pretty... what is that for?

Hello guys

Household Hacker has 4.99 m subs, and you Davehax has 4.96 m. Thats 30k subs more! Do you think that you and HH will be both got 5m subs when you reach that goal?

Whos here but wont make this 😑