Skip to main content

Musical Fire Table! - Experiment

 - Just press play, you mean? -  Yeah, go for it. Whoa! [Music] - Now, you may have seen a Ruben's tube before.That's basically a pipe with a bunch of holes in it, and you pump in a flammable gas, andlight it on fire, so you basically create a row of Bunsen burners.

 What's really coolis to play some sounds into the tube, and you can actually set up standing waves. Thatis, there are areas, there are patterns of the vibration of the air where there's a lotof vibration in some parts, and not very much vibration in other parts.

 Now, that affectsthe flow rate of the gas inside that tube into the atmosphere, and so it affects theheight of those flames. So basically, you can visualize the standing wave pattern. I'mcurrently in Denmark with a team of physics and chemistry demonstrators who have takenthis experiment to the next level.

They've actually created a two-dimensional Ruben'stube, a whole plane of Bunsen burners, effectively. How many holes in this tube? - 2,500 - [Voiceover] 2,500 in this Pyro Board? - Yeah - [Voiceover] So we're gonna see 2,500 littleflames. Yeah. So, do you want to light it up? - Yes, I really want to light it up.

Why did you make this? - Because, we really liked the Ruben's tube,but then we thought, "when you put on morefire, then it always gets better." Let's just turn [the frequency] down ...and then we can just find the standing wave. So, this is below the normal standing wave - [Voiceover] So what are we seeing here? - It's pretty much like the standing waveon the Ruben's tube. It's just in this direction. This is the lowest frequency that makes astanding wave in this pulse. - [Voiceover] So this is like the fundamental. - It's the fundamental.

Can you show me what happenswhen you vary the volume a little bit? Whoa! That was awesome. Okay,should we try to find another standing wave? - Yes You can see it.

 You can seeit. You can hear it before you can see it. - Woah -  It's weird. With the microphones,I can actually hear, like here, I'm in a node.

And then here, I'm in an anti-node. Here I'm ina node. - [Sune] Because you can measure the soundpressure? -  I can hear it. Like here isvery much an anti-node. - [Sune] I never thought about that. -  This is a node, and you guyscan hear it. - [Sune] That's true. -  It's incredible. The flamesmust be coming out in the anti-nodes.

- The flames are coming up in the anti-nodes,yeah. -  And you can even hear it. That’sincredible. - Yeah It's nice that it can do that. - That is awesome. - [Sune] We just learned something. -  What happens if we try to gohigher frequency? - [Sune] Yeah. We have something. Oh, that'sa good one. -  That is crazy. We're right inthe anti-node.

is your ears okay? -  Oh, God! - My ears are hurting now. - That was painful. Why don'twe try to put something more pleasing to the ear through the speaker and see what happens.

 - I think that's a good idea. - Let's put some music on there.You ready? - Go. [Music with bass thumping] - So, you go around Denmark showing kids allabout physics? - We do. That's what we do. - You show them the Pyro Board? - We show them the Pyro Board, and we showthem a whole lot of other stuff. - You guys are also on YouTube? - Yep, we have a YouTube channel.

 You cango to this link, right here. - Go check it out if you want to see moreof what these guys are up to. It's awesome. - [Sune] It's great. - Ahoy. That is the actual Czech word forhello. I have made it to Olomouc in the Czech Republic, and this is partly thanks to supportfrom,

 the leading provider of audio books, with over 150,000 titles in allareas of literature, including fiction, non-fiction, and periodicals. Now, today I wanted to recommenda book, which is a little bit European, and it's called Galileo's Daughter by Dava Sobel.I love this book because it includes the actual letters written from Galileo's daughter tohim during his life, and it really reveals what he must have gone through as a humanbeing.

 We all know about his science, and about the trials that he went through, butto see this kind of insight into his personal life, I think is remarkable, so you shouldreally check out this book, and you can download it for free by going to,or you can pick any other book of your choosing for a one month free trial.

 So I really wantto thank Audible for supporting me, and allowing me to go and meet great scientists, and filmmakers,and lots of people all around the world.

 Also, I should note that I will be hosting MichioKaku in Brisbane and Melbourne on June 5th and 6th. Links in the doobly-doo. I wouldlove to see you there.

 Thank you so much for watching, and I will see you somewhere elsein the world. Bye. 

Popular posts from this blog

Top Books to Read in 2020

Best Books for 2020 On the off chance that you need another book to add to your understanding rundown, look no further than this gathering of the best books that came out this year. We've been ruined with astounding peruses of late, so in case you're in the market for a hot-off-the-squeezes page-turner in any sort you can envision, we've uncovered the best books 2019 brings to the table.  In 2019, we've been graced with some roar with laughter big name journals, thrilling riddles that will send shudders down your spine, sentiments to pull at your heartstrings, dramatizations that truly spill the tea, some phenomenal picks in fiction that transport us to new universes, and accounts of endurance, steadiness, and motivation that we needed to feature entirely through. A portion of our preferred writers has come out with new stories that simply strengthened our being a fan, and a totally different class of newcomers has composed their way into our souls. Regardless

Midrange Speakers vs Wine Glass - Will it break?

 All right, I got a little something fun that I want to try today and I got just the right speakers to do it Some CT sounds per audio eights And a couple of wine glasses, come on, let's go Poor ohms continuous watts 150 Same thing over here. So 300 watts. I think we'll put it on a 3000 watt app. See what happens Today's video Something that I've always wanted to do I've always wanted to try but since I've got an SMD IMS G and I can command my own frequencies.  I Think today is a good day to do it gotta love Amazon So I don't think these things are very expensive but they are crystal Put two four ohm speakers in parallel here with the two own they wants We got power For example we got the sound digital 3000 point one right here But I think what we'll do As we'll hook up the same m1. We'll find out exactly how much power it's going to take to break that glass So let's do this Oh there Will not do the whole One thing I forgot to do A

7 Strangest & Coolest Materials Which Actually Exist

 welcome to TTI and welcome to a wholenew world of science today we're going to explore the seven most uniquematerials that you would think would have to be from the world of sciencefiction but stay tuned because we're going to run where the science behindSo my friend sit back relax and enjoy the video number seven ultra hydrophobicmaterial generally there is some interaction between solid and liquid butit's difficult to imagine these unique tiny drops that are unable to wet thesurfaces of material science has made some great progress in recent  decades inthe field of hydrophobicity and opening a wide range of application the hydrophobic surface is based on the Lotus effect this effect was discovered in the 1970s from the microscopicobservations of the natural hydrophobic properties of the surface of a lotusleaf the Lotus plant is comprised of an adhesive nonpolar and wax-like substancewhich is what causes the Lotus effect or hydrophobicity which is featured by thelo